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

public class punkt extends Frame implements MouseListener{
  public punkt(){
    init();
  }
  public void init(){
    addMouseListener(this);
  }
  public void mousePressed(MouseEvent e){
    Graphics g=getGraphics();
    g.setColor(Color.red);
    g.drawLine(e.getX(), e.getY()-10,e.getX(), e.getY()+10);
    g.drawLine(e.getX()-10, e.getY(),e.getX()+10, e.getY());

  }
  public void mouseReleased(MouseEvent e){}
  public void mouseExited(MouseEvent e){}
  public void mouseEntered(MouseEvent e){}
  public void mouseClicked(MouseEvent e){}

public static void main(String argumendid[]){
    punkt f= new punkt();
    f.setBackground(Color.blue);
    f.setSize(300, 300);
    f.setVisible(true);
    f.addMouseListener(f);
  } 

}