menuaccelerator.java

来自「java技术内幕源代码,配合书籍看有事半功倍的效果」· Java 代码 · 共 45 行

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

/*
<APPLET
    CODE = menuaccelerator.class
    WIDTH = 350
    HEIGHT = 280 >
</APPLET>
*/

public class menuaccelerator extends JApplet implements ActionListener
{
    public void init()
    { 
        Container contentPane = getContentPane();

        JMenuBar jmenubar = new JMenuBar();
        JMenu jmenu = new JMenu("File");
        JMenuItem jmenuitem = new JMenuItem("New...");

        jmenu.add(jmenuitem);
        jmenu.add("Open ...");
        jmenu.addSeparator();
        jmenu.add("Exit");

        jmenuitem.setMnemonic(KeyEvent.VK_N);

        KeyStroke keystroke = KeyStroke.getKeyStroke(KeyEvent.VK_N, Event.CTRL_MASK);
        jmenuitem.setAccelerator(keystroke);
        jmenuitem.addActionListener(this);

        jmenubar.add(jmenu);
        setJMenuBar(jmenubar);
    }

    public void actionPerformed(ActionEvent e)
    {
        showStatus("You selected the New item.");
    }
}