import java.awt.*;
import java.applet.*;
import java.awt.event.*;

public class Liikumine1 extends Applet 
             implements ActionListener{
  TextField tf=new TextField(10);
  public Liikumine1(){
    add(tf);
    tf.addActionListener(this);
  }
  public void actionPerformed(ActionEvent e){
    try{ //veapüünis
     int x=10;
     int y=100;
     Graphics g=getGraphics();
     while(x<300){
       g.setColor(Color.black);
       g.drawOval(x, y, 10, 10);
       Thread.sleep(300); //ooteaeg millisekundites
       g.setColor(Color.white);
       g.drawOval(x, y, 10, 10);
       x=x+5;
     }     
    } catch (Exception probleem){
      System.out.println(probleem);
    }
  }
  public static void main(String[] argumendid){
    Frame f=new Frame();
    f.add(new Liikumine1());
    f.setSize(300, 300);
    f.setVisible(true);
  }
}