import java.awt.BorderLayout;

public class text2 extends JFrame {

private JPanel contentPane;

/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
text2 frame = new text2();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}

/**
* Create the frame.
*/
public text2() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));
setContentPane(contentPane);

JScrollPane scrollPane = new JScrollPane();
contentPane.add(scrollPane, BorderLayout.CENTER);

final JTextArea textArea = new JTextArea();
scrollPane.setViewportView(textArea);

JMenuBar menuBar = new JMenuBar();
scrollPane.setColumnHeaderView(menuBar);

JMenu menu = new JMenu("\u7F16\u8F91");
menuBar.add(menu);

JMenuItem mntmCopy = new JMenuItem("copy");
mntmCopy.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
textArea.copy();
}
});

menu.add(mntmCopy);

JMenuItem mntmPaste = new JMenuItem("paste");
mntmPaste.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
textArea.paste();
}
});

menu.add(mntmPaste);

JMenuItem mntmCut = new JMenuItem("cut");
mntmCut.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {//mouseclick
textArea.cut();
}
});

menu.add(mntmCut);
}

}

这是改好的，原来的监听事件为mouseclick，可是就是不起作用，不知原因，请教帮助解答。

类似处的事件都是这样的：

JMenuItem mntmCut = new JMenuItem("cut");
		mntmCut.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseClicked(MouseEvent e) {
				text.cut();
			}
		});
		menu.add(mntmCut);
		
结果触发不成功，但是想知道原因。。。。。。。。。。。