Construct the object including its GUI
super("GUIextendsFrame");
setLayout(new FlowLayout());
add(new Label("Hello, and welcome to the world of Java"));
add(quitButton = new Button("Exit"));
quitButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
setVisible(false);
dispose();
System.exit(0);
}
});
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// addWindowListener(new WindowAdapter() {
// public void windowClosing(WindowEvent e) {
// setVisible(false);
// dispose();
// System.exit(0);
// }
// });
pack();
