i am making a wordprocessor that can open .RTF files. is their any way i
can make it open .txt files also this is the code for opening RTF files

Action actionOpen = new AbstractAction("Open",iconOpen){
   public void actionPerformed (ActionEvent e)
   {
     WordPad.this.setCursor(
     Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
     Thread runner = new Thread()

     {
       public void run()
       {
         if (myChooser.showOpenDialog(WordPad.this)!=
          JFileChooser.APPROVE_OPTION)
          return;
         WordPad.this.repaint();

         File fileChoosen = myChooser.getSelectedFile();

         try{
         InputStream in = new FileInputStream (fileChoosen);
         myDoc = new DefaultStyledDocument(myStyleContext);
         myKit.read(in,myDoc,0);
         myOutput.setDocument(myDoc);
         in.close();
         }
         catch (Exception ex){
         ex.printStackTrace();
         }
         WordPad.this.setCursor(Cursor.getPredefinedCursor
         (Cursor.DEFAULT_CURSOR ) );
       }
     };

     runner.start();

     myDoc.addUndoableEditListener(new Undoer());
   }

 };