super("Focus Example");
setDefaultCloseOperation(EXIT_ON_CLOSE);
MyPanel mypanel = new MyPanel();
JButton button1 = new JButton("One");
JButton button2 = new JButton("Two");
JButton button3 = new JButton("Three");
JButton button4 = new JButton("Four");
JButton button5 = new MyButton("Five*");
JButton button6 = new MyButton("Six*");
JButton button7 = new JButton("Seven");
mypanel.add(button2);
mypanel.add(button3);
JInternalFrame frame1 = new JInternalFrame("Internal Frame 1",
true, true, true, true);
frame1.setBackground(Color.lightGray);
frame1.getContentPane().setLayout(new GridLayout(2, 3));
frame1.setSize(300, 200);
frame1.getContentPane().add(button1);
frame1.getContentPane().add(mypanel);
frame1.getContentPane().add(button4);
frame1.getContentPane().add(button5);
frame1.getContentPane().add(button6);
frame1.getContentPane().add(button7);
JDesktopPane desktop = new JDesktopPane();
desktop.add(frame1, new Integer(1));
desktop.setOpaque(true);
// Now set up the user interface window.
Container contentPane = getContentPane();
contentPane.add(desktop, BorderLayout.CENTER);
setSize(new Dimension(400, 300));
frame1.setVisible(true);
setVisible(true);
