Java: submenu in jpopupmenu with separators and shortcut keys that appear?

how do you go about adding submenu's to an existing jpopupmenu?

when you right click the j开发者_StackOverflow社区popupmenu appears, I want to access submenus under another menu.

how do you add separators in the jpopupmenu? what about shortcut keys?

Below image describes what I want.

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For separators, you will need JSeparator, see example here.

For binding a shortcut, you will need to call setMnemonic, see example here.

For sub-menu, simply add a JMenu to an existing JMenu/JPopupMenu as a child, see example here.

Note: links 4-6 are the same one

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Read the section from the Swing tutorial on How to Use Menus for working examples and explanations.