java.lang.Object
java.awt.MenuComponent
java.awt.MenuItem
java.awt.Menu
java.awt.PopupMenu
- All Implemented Interfaces:
- MenuContainer,- Serializable,- Accessible
A class that implements a menu which can be dynamically popped up
 at a specified position within a component.
 
 As the inheritance hierarchy implies, a PopupMenu
  can be used anywhere a Menu can be used.
 However, if you use a PopupMenu like a Menu
 (e.g., you add it to a MenuBar), then you cannot
 call show on that PopupMenu.
- See Also:
- 
Nested Class SummaryNested ClassesModifier and TypeClassDescriptionprotected classInner class of PopupMenu used to provide default support for accessibility.Nested classes/interfaces declared in class java.awt.MenuMenu.AccessibleAWTMenuNested classes/interfaces declared in class java.awt.MenuItemMenuItem.AccessibleAWTMenuItemNested classes/interfaces declared in class java.awt.MenuComponentMenuComponent.AccessibleAWTMenuComponent
- 
Constructor SummaryConstructors
- 
Method SummaryModifier and TypeMethodDescriptionvoidCreates the popup menu's peer.Gets theAccessibleContextassociated with thisPopupMenu.voidShows the popup menu at the x, y position relative to an origin component.Methods declared in class java.awt.Menuadd, add, addSeparator, countItems, getItem, getItemCount, insert, insert, insertSeparator, isTearOff, paramString, remove, remove, removeAll, removeNotifyMethods declared in class java.awt.MenuItemaddActionListener, deleteShortcut, disable, disableEvents, enable, enable, enableEvents, getActionCommand, getActionListeners, getLabel, getListeners, getShortcut, isEnabled, processActionEvent, processEvent, removeActionListener, setActionCommand, setEnabled, setLabel, setShortcutMethods declared in class java.awt.MenuComponentdispatchEvent, getFont, getName, getParent, getTreeLock, postEvent, setFont, setName, toStringMethods declared in class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitMethods declared in interface java.awt.MenuContainergetFont, postEvent
- 
Constructor Details- 
PopupMenuCreates a new popup menu with an empty name.- Throws:
- HeadlessException- if GraphicsEnvironment.isHeadless() returns true.
- See Also:
 
- 
PopupMenuCreates a new popup menu with the specified name.- Parameters:
- label- a non-- nullstring specifying the popup menu's label
- Throws:
- HeadlessException- if GraphicsEnvironment.isHeadless() returns true.
- See Also:
 
 
- 
- 
Method Details- 
addNotifypublic void addNotify()Creates the popup menu's peer. The peer allows us to change the appearance of the popup menu without changing any of the popup menu's functionality.
- 
showShows the popup menu at the x, y position relative to an origin component. The origin component must be contained within the component hierarchy of the popup menu's parent. Both the origin and the parent must be showing on the screen for this method to be valid.If this PopupMenuis being used as aMenu(i.e., it has a non-Componentparent), then you cannot call this method on thePopupMenu.- Parameters:
- origin- the component which defines the coordinate space
- x- the x coordinate position to popup the menu
- y- the y coordinate position to popup the menu
- Throws:
- NullPointerException- if the parent is- null
- IllegalArgumentException- if this- PopupMenuhas a non-- Componentparent
- IllegalArgumentException- if the origin is not in the parent's hierarchy
- RuntimeException- if the parent is not showing on screen
 
- 
getAccessibleContextGets theAccessibleContextassociated with thisPopupMenu.- Specified by:
- getAccessibleContextin interface- Accessible
- Overrides:
- getAccessibleContextin class- Menu
- Returns:
- the AccessibleContextof thisPopupMenu
- Since:
- 1.3
 
 
-