import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;
public class Liikumine1 extends Applet 
     implements ActionListener, KeyListener{
   int x=100; 
   int y=50;
   int sammX=0;
   int sammY=1;
   int d=15;
   Timer t=new Timer(500, this);
   public Liikumine1(){
      t.start();
	  addKeyListener(this);
   }
   public void paint(Graphics g){
      super.paint(g);
      g.drawRect(x, y, d, d);
   }
   public void liigu(){
      x=x+sammX;
	  y=y+sammY;
      repaint();
   }
   public void actionPerformed(ActionEvent e){
     if(e.getSource()==t){
      liigu();
     }
   }
   public void keyPressed(KeyEvent e){
    int kood=e.getKeyCode();
    if(kood==KeyEvent.VK_LEFT){sammX=-1;}
    if(kood==KeyEvent.VK_RIGHT){sammX=1;}
    if(kood==KeyEvent.VK_UP){sammY=-1;}
    if(kood==KeyEvent.VK_DOWN){sammY=1;}
    repaint();
  }
  public void keyReleased(KeyEvent e){}
  public void keyTyped(KeyEvent e){}
   
   public static void main(String[] arg){
     Frame f=new Frame("Liikumine");
     f.add(new Liikumine1());
     f.setSize(300, 300);
     f.setVisible(true);
   }
}