Event Handling with the Swing Component Set - The Definitive Guide to Java Swing - page 39

JMenu menu = new JMenu("File");
menuBar.add(menu);
menu.add(new JMenuItem(printAction));
JToolBar toolbar = new JToolBar();
toolbar.add(new JButton(printAction));
JButton enableButton = new JButton("Enable");
ActionListener enableActionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
printAction.setEnabled(true);
}
};
enableButton.addActionListener(enableActionListener);
JButton disableButton = new JButton("Disable");
ActionListener disableActionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
printAction.setEnabled(false);
}
};
disableButton.addActionListener(disableActionListener);
JButton relabelButton = new JButton("Relabel");
ActionListener relabelActionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
printAction.putValue(Action.NAME, "Hello, World");
}
};
relabelButton.addActionListener(relabelActionListener);
JPanel buttonPanel = new JPanel();
buttonPanel.add(enableButton);
buttonPanel.add(disableButton);
buttonPanel.add(relabelButton);
frame.setJMenuBar(menuBar);
frame.add(toolbar, BorderLayout.SOUTH);
frame.add(buttonPanel, BorderLayout.NORTH);
frame.setSize(300, 200);
frame.setVisible(true);
}
};
EventQueue.invokeLater(runner);
}
}