title: Java Delete a line from txt after reding the file
body: <p>I have this file </p>
  
  <pre><code>1007    book1           5      3
  1004    book2           4      1
  1003    book3           3      0
  1002    book4           2      1
  </code></pre>
  
  <p>and I am trying to delete the book number 1004 from the file, but before that I let the user enter the number of the book that he wants to delete.
  First check if the book exists in the file or not, if the book is exists I delete it if not show "the book does not exists".</p>
  
  <pre><code>Scanner kb = new Scanner(System.in);
          FileInputStream book = new FileInputStream("input.txt");
  Scanner infile = new Scanner(book);
  FileOutputStream out = new FileOutputStream("output.txt");
  PrintWriter pw = new PrintWriter(out);
  boolean found = false;
  System.out.print("Enter the bookID : ");
  int bID = kb.nextInt();
  while(infile.hasNext()){
      int id = infile.nextInt();
      String title = infile.next();
      int quantity = infile.nextInt();
      int bQuantity = infile.nextInt();
      if(bID == id){
          found = true;
      }
      if(found == true){
              pw.printf("%8d\t%-30s\t%8d\t%8d", infile.nextInt(), infile.next(), infile.nextInt(), infile.nextInt());
              infile.nextLine();
              System.out.println("The book has been deleted");
              break;
          }
  }
  if(found == false)
      System.out.print("Not found");
  pw.close();
  infile.close();
  </code></pre>
  
  <p>I am trying to print all the file with out the book I have deleted.</p>