Applet

package somegame;

import java.applet.Applet;
import java.awt.Color;
import java.awt.Frame;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

public class SomeGame extends Applet implements KeyListener,Runnable{

    @Override
    public void init() {
        setSize(800,480);
        setBackground(Color.BLACK);
        setFocusable(true);
        Frame fr = (Frame)this.getParent().getParent();
        fr.setTitle("Q-Bot Alpha");
        addKeyListener(this);
    }

   // a pontok helyén csak felülírt metódusok vannak amelyek nem csinálnak semmit..
    .....

    @Override
    public void run() {
        while(true){
            repaint();
            try{
                Thread.sleep(17);
            }catch(Exception e){
                e.printStackTrace();
            }
        }
    }

    ......

    @Override
    public void keyPressed(KeyEvent e) {
        switch(e.getKeyCode()){
            case KeyEvent.VK_UP:
                System.out.println("Moving up");
                break;
            case KeyEvent.VK_DOWN:
                System.out.println("Moving down");
                break;
            case KeyEvent.VK_LEFT:
                System.out.println("Moving left");
                break;
            case KeyEvent.VK_RIGHT:
                System.out.println("Moving right");
                break;
            case KeyEvent.VK_SPACE:
                System.out.println("Moving jump");
                break;
        }
    }

    @Override
    public void keyReleased(KeyEvent e) {
        switch(e.getKeyCode()){
            case KeyEvent.VK_UP:
                System.out.println("Stop moving up");
                break;
            case KeyEvent.VK_DOWN:
                System.out.println("Stop moving down");
                break;
            case KeyEvent.VK_LEFT:
                System.out.println("Stop moving left");
                break;
            case KeyEvent.VK_RIGHT:
                System.out.println("Stop moving right");
                break;
            case KeyEvent.VK_SPACE:
                System.out.println("Stop moving jump");
                break;
        }
    }

}