// demonstrate how to add things
// Graphics!

import javax.swing.*;
import java.awt.*;

public class AddStuff3 {
    public static void main(String[] args) {
	new MyGUI();
    }
}

class MyGUI {
    
    private JFrame f;
    private Container c;
    private LayoutManager l;
    private MyPanel[] p;
    private int dim;

    public MyGUI() {

	makeWindow();
	showWindow();
    }

    private void makeWindow() {
	dim = 4;
	f = new JFrame("AddStuff3");
	p = new MyPanel[dim*dim];
	c = f.getContentPane();
	l = new GridLayout(dim,dim,2,2);
	c.setLayout(l);
	for (int i=0;i<p.length;i++) {
	    p[i]=new MyPanel();
	    c.add(p[i]);
	}
    }







    private void showWindow() {
	f.setSize(500,500);                  
	f.setVisible(true);                  
	f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}

class MyPanel extends JPanel {

    public void paintComponent (Graphics g) {
	super.paintComponent(g); // clear drawing area
	g.setColor(Color.white);
	g.fill3DRect(0,0,getWidth(),getHeight(),true);
    }
}