import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Liikumine1 extends JPanel implements ActionListener{
   int x=100; 
   int y=50;
   int d=15;
   Timer t=new Timer(500, this);
   public Liikumine1(){
      t.start();
   }
   public void paintComponent(Graphics g){
      super.paintComponent(g);
      g.drawRect(x, y, d, d);
   }
   public void liigu(){
      x=x+1;
      repaint();
   }
   public void actionPerformed(ActionEvent e){
     if(e.getSource()==t){
      liigu();
     }
   }
   
   public static void main(String[] arg){
     JFrame f=new JFrame("Liikumine");
     f.add(new Liikumine1());
     f.setSize(300, 300);
     f.setVisible(true);
   }
}