OutOfMemory in an applet

[Michaela Fricker]

I've witten an applet that reads txt files into a JTextArea. But if they're a litte larger I got an OutOfMemory Error. Even if the file is just 7MB.
What can I do?

[Dave Wingate]

Help us help you by posting your code.

[Michaela Fricker]

Here is my code for reading the textfiles:

  void readFile(){
    bigFile = false;
    JFileChooser jFileChooser1 = new JFileChooser();
    jFileChooser1.addChoosableFileFilter(new TextFilter());
    int returnVal = jFileChooser1.showOpenDialog(jButton1);
    if(returnVal == JFileChooser.APPROVE_OPTION) {
      try {
        FileInputStream fileInputStream = new FileInputStream(jFileChooser1.getSelectedFile());
        file = new File(jFileChooser1.getSelectedFile().getPath());
        StringBuffer text = new StringBuffer();
        String str = "";
        BufferedReader br = new BufferedReader(new InputStreamReader(fileInputStream));
        // Get the number of bytes in the file
        long length = file.length(); //Length in byte
        length = length / 1048576; //Legnth in mega byte
        if (length <= 9){
          contentPane.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
          while((str = br.readLine())!=null){
            text.append(str).append("\n");
          }
          jTextArea1.setText(text.toString());
          contentPane.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
        }
        else{
          bigFile = true;
          jTextArea1.setText("Size of the selected file is greater than 10MB.\n" +
                             "So it cannot displayed in this text area.\n" +
                             "Please go on with 'Extract'");
        }
        br.close();
        jButton2.setEnabled(true);
        jButton2.requestFocus();
        jButton3.setEnabled(false);
        jButton4.setVisible(false);
        jButton5.setVisible(false);
     }
      catch (IOException e) {
        jTextArea1.setText(e.getMessage());
      }
    }
  }