Ah que bonita casa.

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

public class DrawExample extends JFrame
implements ActionListener {

private JButton button;
private JPanel panel;

public static void main(String[] args) {
DrawExample frame = new DrawExample();
frame.setSize(500, 500);
frame.createGUI();
frame.setVisible(true);
}

private void createGUI() {
setDefaultCloseOperation(EXIT_ON_CLOSE);
Container window = getContentPane();
window.setLayout(new FlowLayout() );

panel = new JPanel();
panel.setPreferredSize(new Dimension(500, 500));
panel.setBackground(Color.white);
window.add(panel);

button = new JButton("Press me");
window.add(button);
button.addActionListener(this);
}

public void actionPerformed(ActionEvent event) {
Graphics paper = panel.getGraphics();
paper.drawRect(200,200,100,100);
paper.drawLine(200,200,250,150);
paper.drawLine(250,150,300,200);
paper.drawRect(215,215,15,15);
paper.drawRect(270,215,15,15);
paper.drawRect(245,270,15,30);
paper.drawLine(0,300,400,300);
paper.drawOval(400,100,75,75);


}
}



apoco no quedo bonita??