|
import java.awt.Event;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;
public class MenuAcceleratorKeyStroke extends JFrame {
public MenuAcceleratorKeyStroke() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JMenuBar bar = new JMenuBar();
JMenu menu = new JMenu("File");
menu.setMnemonic('f');
bar.add(menu);
JMenuItem exit = new JMenuItem("Exit");
exit.setMnemonic('x');
exit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Exit performed");
MenuAcceleratorKeyStroke.this.dispose();
System.exit(0);
}
});
menu.add(exit);
menu = new JMenu("Edit");
menu.setMnemonic('e');
bar.add(menu);
EditListener l = new EditListener();
JMenuItem mi;
mi = menu.add(new JMenuItem("Cut", 't'));
mi.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X, Event.CTRL_MASK));
mi.addActionListener(l);
mi = menu.add(new JMenuItem("Copy", 'c'));
mi.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, Event.CTRL_MASK));
mi.addActionListener(l);
mi = menu.add(new JMenuItem("Paste", 'p'));
mi.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V, Event.CTRL_MASK));
mi.addActionListener(l);
setJMenuBar(bar);
getContentPane().add(new JLabel("A placeholder"));
pack();
setSize(300, 300);
setVisible(true);
}
private class EditListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
System.out.println(e.getActionCommand());
}
}
public static void main(String arg[]) {
new MenuAcceleratorKeyStroke();
}
}
|
