import java.awt.*;
class Juhu extends Frame{
  public void paint(Graphics g){
    int suurus=getWidth();
    int juhux=(int)(Math.random()*suurus);
    g.drawOval(juhux, 100, 20, 20);
  }
  static void main(String argumendid[]){
     Frame f=new Juhu();
     f.setSize(200, 150);
     f.setVisible(true);
  }
}