Name: mc57594 Date: 01/20/97


Pressing a "normal" key such as the letter "a" on the
keyboard, causes the
keyPressed method of a keyListener implementor to be called once as
expected. If you
press the ENTER key any time after pressing a "normal" key, the keyPressed
method
gets called twice for every ENTER key pressed! Note that pressing the CTRL
key also
causes subsequent ENTER key events to be fired twice.

Here's a sample application to see the problem in action:

import java.awt.*;
import java.awt.event.*;

public class KeyBugApp extends Frame implements KeyListener
{
  public KeyBugApp()
  {
    addKeyListener (this);
  }

  public void paint (Graphics g)
  {
    g.drawString ("Look at the console output window for results!", 25,
50);
  }

  public void keyPressed (KeyEvent e)
  {
    // this function should be called only once with every key pressed on
the keyboard
    // press the letter 'a', then press ENTER and you'll see this function
get called twice
    // after pressing ENTER
    System.out.println ("[keyPressed] "+e);
  }

  public void keyReleased (KeyEvent e)
  {
  }

  public void keyTyped (KeyEvent e)
  {
  }

  public static void main (String args[])
  {
    KeyBugApp frame = new KeyBugApp();
    frame.resize (320, 200);
    frame.show();
  }
}
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