PopupMenu (Java 2 Platform SE v1.4.1_"07")

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JavaTM 2 Platform
Std. Ed. v1.4.1_"07"

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## java.awt
Class PopupMenu

    java.lang.Object
      |
      +--java.awt.MenuComponent
            |
            +--java.awt.MenuItem
                  |
                  +--java.awt.Menu
                        |
                        +--java.awt.PopupMenu

All Implemented Interfaces:
  Accessible, MenuContainer, Serializable

public class PopupMenu
extends Menu

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:
  Serialized Form

Nested Class Summary
`protected class` | `PopupMenu.AccessibleAWTPopupMenu` Inner class of PopupMenu used to provide default support for accessibility.

Nested classes inherited from class java.awt.Menu
``

Nested classes inherited from class java.awt.MenuItem
``

Nested classes inherited from class java.awt.MenuComponent
``

Constructor Summary
`PopupMenu()` Creates a new popup menu with an empty name.
`PopupMenu(String label)` Creates a new popup menu with the specified name.

Method Summary
`void` | `addNotify()` Creates the popup menu's peer.
`AccessibleContext` | `getAccessibleContext()` Gets the `AccessibleContext` associated with this `PopupMenu`.
`void` | `show(Component origin, int x, int y)` Shows the popup menu at the x, y position relative to an origin component.

Methods inherited from class java.awt.Menu
`add, add, addSeparator, countItems, getItem, getItemCount, insert, insert, insertSeparator, isTearOff, paramString, remove, remove, removeAll, removeNotify`

Methods inherited from class java.awt.MenuItem
`addActionListener, deleteShortcut, disable, disableEvents, enable, enable, enableEvents, getActionCommand, getActionListeners, getLabel, getListeners, getShortcut, isEnabled, processActionEvent, processEvent, removeActionListener, setActionCommand, setEnabled, setLabel, setShortcut`

Methods inherited from class java.awt.MenuComponent
`dispatchEvent, getFont, getName, getParent, getPeer, getTreeLock, postEvent, setFont, setName, toString`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Methods inherited from interface java.awt.MenuContainer
`getFont, postEvent`

Constructor Detail

### PopupMenu

    public PopupMenu()
              throws HeadlessException

  Creates a new popup menu with an empty name.

Throws:
  `HeadlessException` - if GraphicsEnvironment.isHeadless() returns true.
See Also:
  `GraphicsEnvironment.isHeadless()`

### PopupMenu

    public PopupMenu(String label)
              throws HeadlessException

  Creates a new popup menu with the specified name.

Parameters:
  `label` - a non-`null` string specifying the popup menu's label
Throws:
  `HeadlessException` - if GraphicsEnvironment.isHeadless() returns true.
See Also:
  `GraphicsEnvironment.isHeadless()`

Method Detail

### addNotify

    public 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.

  Overrides:
    `addNotify` in class `Menu`

### show

    public void show(Component origin,
                     int x,
                     int y)

  Shows 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 `PopupMenu` is being used as a `Menu` (i.e., it has a non-`Component` parent), then you cannot call this method on the `PopupMenu`.

  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 `PopupMenu` has a non-`Component` parent
    `IllegalArgumentException` - if the origin is not in the parent's heirarchy
    `RuntimeException` - if the parent is not showing on screen

### getAccessibleContext

    public AccessibleContext getAccessibleContext()

  Gets the `AccessibleContext` associated with this `PopupMenu`.

  Specified by:
    `getAccessibleContext` in interface `Accessible`
  Overrides:
    `getAccessibleContext` in class `Menu`
  Returns:
    the `AccessibleContext` of this `PopupMenu`

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JavaTM 2 Platform
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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.