title: Password protected zip file in java
body: <p>I have created zip file using java as below snippet</p>
  
  <pre><code>import java.io.*;
  import java.util.zip.*;
  
  public class ZipCreateExample {
    public static void main(String[] args) throws IOException {
      System.out.print("Please enter file name to zip : ");
      BufferedReader input = new BufferedReader
          (new InputStreamReader(System.in));
      String filesToZip = input.readLine();
      File f = new File(filesToZip);
      if(!f.exists()) {
        System.out.println("File not found.");
        System.exit(0);
      }
      System.out.print("Please enter zip file name : ");
      String zipFileName = input.readLine();
      if (!zipFileName.endsWith(".zip"))
        zipFileName = zipFileName + ".zip";
      byte[] buffer = new byte[18024];
      try {
        ZipOutputStream out = new ZipOutputStream
            (new FileOutputStream(zipFileName));
        out.setLevel(Deflater.DEFAULT_COMPRESSION);
        FileInputStream in = new FileInputStream(filesToZip);
        out.putNextEntry(new ZipEntry(filesToZip));
        int len;
        while ((len = in.read(buffer)) &gt; 0) {
          out.write(buffer, 0, len);
        }
        out.closeEntry();
        in.close();
        out.close();
      } catch (IllegalArgumentException iae) {
        iae.printStackTrace();
        System.exit(0);
      } catch (FileNotFoundException fnfe) {
        fnfe.printStackTrace();
        System.exit(0);
      } catch (IOException ioe) {
        ioe.printStackTrace();
        System.exit(0);
      }
    }
  }
  </code></pre>
  
  <p>Now I want when I click on the zip file it should prompt me to type password and then decompress the zip file.
  Please any help,How should I go further?</p>