KeyEvent - Keypress

[arun iyer]

hi,
I used a keylistener in my piano applet. the problem is that when the user keeps and key pressed, the event gets fired again and again. Is there any way, by which I can stop that...
For example: if the user has pressed q and has not released the key..... he should get only one q and not qqqqqqqqqqqq........
i.e. the event should get fired only once irrespective of the time the user has pressed the key without releasing it.

Expecting help in this regard......
Arun Iyer

[Paul Bailey]

arun,
Post the part of your code that implements KeyListener

[Manfred Leonhardt]

Hi Arun,
The following code is crude but will do the job you want.

import java.awt.*;
import java.awt.event.*;
public class C extends java.applet.Applet
{
  private boolean[] keyPress = new boolean[128];
  public void init()
  {
    addKeyListener( new KeyAdapter()
    {
      public void keyPressed( KeyEvent ke )
      {
        if( !(keyPress[ke.getKeyCode()]) )
        {
          // Handle new key press ...
        }
        //
        // Set this keyCode to true so that we know it has been pressed.
        //
        keyPress[ke.getKeyCode()] = true;
      }
      public void keyReleased( KeyEvent ke )
      {
        //
        // Reset this keyCode to false so that we know it has been released.
        //
        keyPress[ke.getKeyCode()] = false;
      }
    });
  }
}

Enjoy,
Manfred.