/* * Swing version. */import java.awt.*;import java.awt.event.*;import javax.swing.*;public class CustomWindow extends JFrame {    boolean inAnApplet = true;         public CustomWindow() {        Container contentPane = getContentPane();        contentPane.setLayout(new DiagonalLayout());           contentPane.add(new JButton("Button 1"));        contentPane.add(new JButton("Button 2"));        contentPane.add(new JButton("Button 3"));        contentPane.add(new JButton("Button 4"));        contentPane.add(new JButton("Button 5"));        addWindowListener(new WindowAdapter() {            public void windowClosing(WindowEvent e) {                if (inAnApplet) {                    dispose();                } else {                    System.exit(0);                }            }        });    }     public static void main(String args[]) {        CustomWindow window = new CustomWindow();        window.inAnApplet = false;        window.setTitle("Custom Layout Manager");        window.pack();        window.setVisible(true);    }}