import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class HiirPallid extends JPanel implements MouseListener{
   java.util.List<Pall> pallid=new ArrayList<Pall>();
   public HiirPallid(){
      addMouseListener(this);
   }
   public void paintComponent(Graphics g){
      super.paintComponent(g);
	  for(Pall p: pallid){
	     p.joonista(g);
	  }
   }
   public void mousePressed(MouseEvent e){
      pallid.add(new Pall(e.getX(), e.getY()));
	  repaint();
   }
   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[] arg){
      JFrame f=new JFrame();
	  f.getContentPane().add(new HiirPallid());
	  f.setSize(400, 300);
	  f.setVisible(true);
   }
}