import javax.swing.*; import java.awt.*; import java.awt.event.*; public class GraphPaperTest extends JPanel { public GraphPaperTest() { setLayout(new GraphPaperLayout(new Dimension(5,5))); // Add a 1x1 Rect at (0,0) add(new JButton("1"), new Rectangle(0,0,1,1)); // Add a 2x1 Rect at (2,0) add(new JButton("2"), new Rectangle(2,0,2,1)); // Add a 1x2 Rect at (1,1) add(new JButton("3"), new Rectangle(1,1,1,2)); // Add a 2x2 Rect at (3,2) add(new JButton("4"), new Rectangle(3,2,2,2)); // Add a 1x1 Rect at (0,4) add(new JButton("5"), new Rectangle(0,4,1,1)); // Add a 1x2 Rect at (2,3) add(new JButton("6"), new Rectangle(2,3,1,2)); } public static void main(String[] args) { JFrame f = new JFrame("GraphPaperTest"); f.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); f.getContentPane().add(new GraphPaperTest(), BorderLayout.CENTER); f.pack(); f.setVisible(true); } }