KeyCodeExample

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class

KeyCodeExample extends MIDlet
{
 private Display d;
 private MyCanvas c;
 public KeyCodeExample()
 {
   d=Display.getDisplay(this);
   c=new MyCanvas(this);
 }
 protected void startApp()
 {
  d.setCurrent(c);
 }
 protected void pauseApp()
 {
 }
 protected void destroyApp(boolean b)
 {
 }
 public void exitMIDlet()
 {
  destroyApp(true);
  notifyDestroyed();
 }
}
class MyCanvas extends Canvas implements CommandListener
{
 private Command exit;
 private String direction;
 private KeyCodeExample kce;
 public MyCanvas (KeyCodeExample kce)
 {
  direction="2=up 8=dn 4=lt 6=rt";
  this.kce=kce;
  exit=new Command("Exit", Command.EXIT,1);
  addCommand(exit);
  setCommandListener(this);
 }
 protected void paint(Graphics g)
 {
 // g.setColor(255,255,255);
  g.fillRect(0,0,getWidth(),getHeight());
   //  g.fillRect(10,5,getWidth(),getHeight());
   //g.fillRect(0,0,0,0);
 // g.fillRect(0,0,5,20);
  g.setColor(255,0,0);//IT IS NOT VISIBLE IF U OMIT
 // g.drawString(direction,0,0,Graphics.TOP|Graphics.LEFT);
 // g.drawString(direction,0,0,Graphics.TOP|Graphics.RIGHT);//IT GOES TO LEFT
 // g.drawString(direction,0,0,0);
  g.drawString(direction,4,15,Graphics.TOP|Graphics.LEFT);
 }
 public void commandAction(Command c, Displayable dd)
 {
  if(c==exit)
  {
   kce.exitMIDlet();
  }
 }
 protected void keyPressed(int key)
 {
   switch(key)
   {
    case KEY_NUM2:
     direction="up";
     break;
    case KEY_NUM8:
     direction="down";
     break;
    case KEY_NUM4:
     direction="left";
     break;
    case KEY_NUM6:
     direction ="right";
     break;
   }
  repaint();
 }
}

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