/* * Swing version. */import java.awt.*;import java.awt.event.*;import javax.swing.*;public class BoxWindow extends JFrame {    boolean inAnApplet = true;         public BoxWindow() {        Container contentPane = getContentPane();        contentPane.setLayout(new BoxLayout(contentPane,                                            BoxLayout.Y_AXIS));           addAButton("Button 1", contentPane);        addAButton("2", contentPane);        addAButton("Button 3", contentPane);        addAButton("Long-Named Button 4", contentPane);        addAButton("Button 5", contentPane);        addWindowListener(new WindowAdapter() {            public void windowClosing(WindowEvent e) {                if (inAnApplet) {                    dispose();                } else {                    System.exit(0);                }            }        });    }    private void addAButton(String text, Container container) {        JButton button = new JButton(text);        button.setAlignmentX(Component.CENTER_ALIGNMENT);        container.add(button);    }    public static void main(String args[]) {        BoxWindow window = new BoxWindow();        window.inAnApplet = false;        window.setTitle("BoxLayout");        window.pack();        window.setVisible(true);    }}