what is the difference between JMenuItem and JMenu

Question

What is the difference between JMenuItem and JMenu?

JMenu m;
JMenuItem i;

Answer 1

A JMenu is the menu itself, or as the documentation states:

An implementation of a menu -- a popup window containing JMenuItems that is displayed when the user selects an item on the JMenuBar.

A JMenuItem is a single item in such a menu. Or, as the documentation describes it:

An implementation of an item in a menu. A menu item is essentially a button sitting in a list. When the user selects the "button", the action associated with the menu item is performed.