With NumLock on, the arrow keys returns the same printable value and
keyCode as the corresponding KeyPad arrow keys.

Using Key.java:

// Key.java ------ code start -------
import java.applet.*;
import java.lang.*;
import java.awt.*;
import java.awt.event.*;

public class Key extends Applet {
        private KeyWatch keyear;
        private Button but1;
        private Button but2;
        private TextArea fld;

        public Key() {}

        public void init() {
                keyear = new KeyWatch();
                this.setLayout(new FlowLayout(FlowLayout.CENTER, 30, 30));
                but1 = new Button("Press Me");
                but2 = new Button("Hit Me");
                fld = new TextArea("Some Text\nSome Text\nSome Text\nSome Text", 10, 20);
                this.add(but1);
                this.add(but2);
                this.add(fld);
                but1.addKeyListener(keyear);
                but2.addKeyListener(keyear);
                fld.addKeyListener(keyear);
                this.addKeyListener(keyear);
        }
}

class KeyWatch extends KeyAdapter {
        public void keyPressed(KeyEvent e) {
                System.out.print("KeyChar=" + e.getKeyChar());
                System.out.print(" KeyCode=" + e.getKeyCode() );
                System.out.println(" KeyText=" + e.getKeyText(e.getKeyCode()));
        }
}
// Key.java ------ code end -------


click on the TextArea then start hitting the KeyPad Arrow keys and the
non-keypad arrow keys:

(with NumLock off and hitting arrow keys)
   KeyChar= KeyCode=37 KeyText=Left
   KeyChar= KeyCode=38 KeyText=Up
   KeyChar= KeyCode=39 KeyText=Right
   KeyChar= KeyCode=40 KeyText=Down
(with NumLock off and hitting keypad arrow keys)
   KeyChar= KeyCode=37 KeyText=Left
   KeyChar= KeyCode=38 KeyText=Up
   KeyChar= KeyCode=39 KeyText=Right
   KeyChar= KeyCode=40 KeyText=Down
(with NumLock On and hitting arrow keys)
   KeyChar=4 KeyCode=100 KeyText=NumPad-4 // BAD!
   KeyChar=8 KeyCode=104 KeyText=NumPad-8 // These should be moving cursors and
   KeyChar=6 KeyCode=102 KeyText=NumPad-6 // (KeyText= Left, Up, Right, Down),
   KeyChar=2 KeyCode=98 KeyText=NumPad-2 // and return no KeyChar value...
(with NumLock On and hitting keypad arrow keys)
   KeyChar=4 KeyCode=100 KeyText=NumPad-4
   KeyChar=8 KeyCode=104 KeyText=NumPad-8
   KeyChar=6 KeyCode=102 KeyText=NumPad-6
   KeyChar=2 KeyCode=98 KeyText=NumPad-2

This should be:

(with NumLock off and hitting arrow keys)
   KeyChar= KeyCode=37 KeyText=Left
   KeyChar= KeyCode=38 KeyText=Up
   KeyChar= KeyCode=39 KeyText=Right
   KeyChar= KeyCode=40 KeyText=Down
(with NumLock off and hitting keypad arrow keys)
   KeyChar= KeyCode=37 KeyText=Left
   KeyChar= KeyCode=38 KeyText=Up
   KeyChar= KeyCode=39 KeyText=Right
   KeyChar= KeyCode=40 KeyText=Down
(with NumLock On and hitting arrow keys)
   KeyChar= KeyCode=37 KeyText=Left
   KeyChar= KeyCode=38 KeyText=Up
   KeyChar= KeyCode=39 KeyText=Right
   KeyChar= KeyCode=40 KeyText=Down
(with NumLock On and hitting keypad arrow keys)
   KeyChar=4 KeyCode=100 KeyText=NumPad-4
   KeyChar=8 KeyCode=104 KeyText=NumPad-8
   KeyChar=6 KeyCode=102 KeyText=NumPad-6
   KeyChar=2 KeyCode=98 KeyText=NumPad-2


NOTE: the above has been corrected to represent the actual required fix (see
comments).

dale.mcduffie@Eng 1997-11-25