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java.awt
Class MenuBar  

java.lang.Object
  java.awt.MenuComponent
      java.awt.MenuBar

All Implemented Interfaces:

javax.accessibility.Accessible, MenuContainer, java.io.Serializable

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public class MenuBar

extends MenuComponent

implements MenuContainer, java.io.Serializable, javax.accessibility.Accessible

This class implements a menu bar in the AWT system.

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Nested Class Summary
protected  class	MenuBar.AccessibleAWTMenuBar           This class provides accessibility support for AWT menu bars.

 

Nested classes inherited from class java.awt.MenuComponent

MenuComponent.AccessibleAWTMenuComponent

 

Field Summary
private  Menu	helpMenu
private  java.util.Vector	menus
private static long	serialVersionUID

 

Fields inherited from class java.awt.MenuComponent

accessibleContext, focusListener, parent, peer

 

Constructor Summary

MenuBar()           Initializes a new instance of MenuBar.

 

Method Summary
Menu	add(Menu menu)           Add a menu to this MenuBar.
void	addNotify()           Creates this object's native peer.
int	countMenus()           Deprecated. This method is deprecated in favor of getMenuCount().
void	deleteShortcut(MenuShortcut shortcut)           Deletes the specified menu shortcut.
javax.accessibility.AccessibleContext	getAccessibleContext()           Gets the AccessibleContext associated with this MenuBar.
Menu	getHelpMenu()           Returns the help menu for this menu bar.
Menu	getMenu(int index)           Returns the menu at the specified index.
int	getMenuCount()           Returns the number of elements in this menu bar.
MenuItem	getShortcutMenuItem(MenuShortcut shortcut)           Returns the menu item for the specified shortcut, or null if no such item exists.
void	remove(int index)           Removes the menu at the specified index.
void	remove(MenuComponent menu)           Removes the specified menu from the menu bar.
void	removeNotify()           Destroys this object's native peer.
void	setHelpMenu(Menu menu)           Sets the help menu for this menu bar.
java.util.Enumeration	shortcuts()           Returns a list of all shortcuts for the menus in this menu bar.

 

Methods inherited from class java.awt.MenuComponent

dispatchEvent, dispatchEventImpl, getFont, getName, getParent, getPeer, getToolkit, getTreeLock, paramString, postEvent, processEvent, setFont, setName, setParent, setPeer, setTreeLock, 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

 

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

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helpMenu

private Menu helpMenu

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menus

private java.util.Vector menus

Constructor Detail

MenuBar

public MenuBar()

Initializes a new instance of MenuBar.

Method Detail

getHelpMenu

public Menu getHelpMenu()

Returns the help menu for this menu bar. This may be null.

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setHelpMenu

public void setHelpMenu(Menu menu)

Sets the help menu for this menu bar.

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add

public Menu add(Menu menu)

Add a menu to this MenuBar. If the menu has already has a parent, it is first removed from its old parent before being added.

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remove

public void remove(int index)

Removes the menu at the specified index.

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remove

public void remove(MenuComponent menu)

Removes the specified menu from the menu bar.

Specified by:

remove in interface MenuContainer

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getMenuCount

public int getMenuCount()

Returns the number of elements in this menu bar.

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countMenus

public int countMenus()

Deprecated. This method is deprecated in favor of getMenuCount().

Returns the number of elements in this menu bar.

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getMenu

public Menu getMenu(int index)

Returns the menu at the specified index.

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addNotify

public void addNotify()

Creates this object's native peer.

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removeNotify

public void removeNotify()

Destroys this object's native peer.

Overrides:

removeNotify in class MenuComponent

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shortcuts

public java.util.Enumeration shortcuts()

Returns a list of all shortcuts for the menus in this menu bar.

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getShortcutMenuItem

public MenuItem getShortcutMenuItem(MenuShortcut shortcut)

Returns the menu item for the specified shortcut, or null if no such item exists.

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deleteShortcut

public void deleteShortcut(MenuShortcut shortcut)

Deletes the specified menu shortcut.

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getAccessibleContext

public javax.accessibility.AccessibleContext getAccessibleContext()

Gets the AccessibleContext associated with this MenuBar. The context is created, if necessary.

Specified by:

getAccessibleContext in interface javax.accessibility.Accessible

Overrides:

getAccessibleContext in class MenuComponent

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