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

public class App 
	extends Applet
	implements MouseListener, ActionListener
{
	int x=0, y=0;
	Button b=null;
	boolean rot=false;
	public void init()
	{	
		b=new Button("Rot!");
		b.addActionListener(this);
		add(b);
		addMouseListener(this);
	}
	public void paint(Graphics g)
	{
		if (rot) g.setColor(Color.RED);

		g.drawRect(x-5, y-5, 10, 10);

		for (int i=0; i<200; i+=20)
		{
			g.drawRect(i,i, 200-(2*i), 200-(2*i));
		}
		super.paint(g);
	}
	public void mouseClicked(MouseEvent e)
	{
		x=e.getX(); y=e.getY(); repaint();
	}
	public void mousePressed(MouseEvent e) { }
	public void mouseReleased(MouseEvent e) { }
	public void mouseEntered(MouseEvent e) { }
	public void mouseExited(MouseEvent e) { }

	public void actionPerformed(ActionEvent e)
	{
		rot=true; repaint();
	}



}