找不到此项目的Javadoc

Question

当我尝试在我的菜单项上添加事件keyevent.vk_t时，它显示编译时错误...“找不到此事件的Javadoc”

jmi21 = new JMenuItem("Undo        Ctrl+Z"); //menu item 
        jmi22 = new JMenuItem("Cut         Ctrl+X"); //menu item
        jmi22.setMnemonic(KeyEvent.VK_T);  //error lies here..it does not allow me to add this key event
        jmi23 = new JMenuItem("Copy        Ctrl+C");
        jmi24 = new JMenuItem("Paste       Ctrl+V");

请帮助