import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;
public class KukkuvPall1 extends Applet 
         implements MouseListener{
  int r=10;
  public KukkuvPall1(){
    addMouseListener(this);
  }
  public void mousePressed(MouseEvent e){
    int x=e.getX();
    Graphics g=getGraphics();
    for(int y=e.getY(); y<getHeight(); y++){
      g.setColor(Color.black);
      g.drawOval(x-r, y-r, 2*r, 2*r);
      try{Thread.sleep(50);}catch(Exception erind){}
      g.setColor(Color.white);
      g.drawOval(x-r, y-r, 2*r, 2*r);      
    }
    
  }
  public void mouseReleased(MouseEvent e){}
  public void mouseClicked(MouseEvent e){}
  public void mouseEntered(MouseEvent e){}
  public void mouseExited(MouseEvent e){}

  public static void main(String[] argumendid){
    Frame f=new Frame();
    f.add(new KukkuvPall1());
    f.setSize(200, 200);
    f.setVisible(true);
  }
}