e808. 建立菜单栏,菜单,菜单项

When the user selects a menu item, it fires an action event.

    // Create the menu bar
    JMenuBar menuBar = new JMenuBar();
    
    // Create a menu
    JMenu menu = new JMenu("Menu Label");
    menuBar.add(menu);
    
    // Create a menu item
    JMenuItem item = new JMenuItem("Item Label");
    item.addActionListener(actionListener);
    menu.add(item);
    
    // Install the menu bar in the frame
    frame.setJMenuBar(menuBar);

 

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posted @ 2018-09-06 08:52  borter  阅读(112)  评论(0编辑  收藏  举报