Overview of Several Menu-Related Components
Class JMenuBar (a subclass of JComponent) contains the methods necessary to manage a menu bar, which is a container for menus. Class JMenu (a subclass of javax.swing.JMenuItem) contains the methods necessary for managing menus. Menus contain menu items and are added to menu bars or to other menus as submenus. When a menu is clicked, it expands to show its list of menu items.
Class JMenuItem (a subclass of javax.swing.AbstractButton) contains the methods necessary to manage menu items. A menu item is a GUI component inside a menu that, when selected, causes an action event. A menu item can be used to initiate an action, or it can be a submenu that provides more menu items from which the user can select. ...
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