Name: diC59631 Date: 12/08/97


1. Steps To reproduce it
=========================
i. Compile attached codes, run it using an
   appletviewer
ii.Use the key "c" to clear, and then the button
   "clear". After hitting the clear button, the
   key listener will stop working.

2. Souce Code
==============
//WhiteBoard2.java

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

public class WhiteBoard3 extends Applet
{
private int lastx, lasty;

public void init()
{
//Anonymous class for mouse Event (action type)
this.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e)
{
lastx=e.getX();
lasty = e.getY();
}
});

//Anonymous class for mouse Event (motion type)
this.addMouseMotionListener(new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e)
{
Graphics g = getGraphics();
int x = e.getX(), y = e.getY();
g.drawLine (lastx, lasty, x, y);
lastx=x;
lasty=y;
}
});

//Anonymous class for keyboard Event (key type)
this.requestFocus();

this.addKeyListener(new KeyAdapter () {
public void keyTyped(KeyEvent e)
{
//System.out.println("Key Adapter Processed");
if (e.getKeyChar() == 'c')
{
Graphics g = getGraphics();
g.setColor(getBackground());
g.fillRect(0,0, getSize().width, getSize().height);
}
}
});


//'Clear' Button
//1. Create
Button cb = new Button("Clear");

//2. Add a Action Listener
cb.addActionListener (new ActionListener() {
public void actionPerformed(ActionEvent e)
{
System.out.println("Action Listener Processed");
Graphics g = getGraphics();
g.setColor(getBackground());
g.fillRect(0,0, getSize().width, getSize().height);
}
});

//3. Add to applet
this.add(cb);
}
}


3. Exact Error Message
======================
None

4. - none

5. Additonal Info
=================
The error seems to be the case for any keys used.
Tried with 3 keys; s, c, a
(Review ID: 21512)
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