MenuComponent (Java Platform SE 7 b138)

java.lang.Object
- java.awt.MenuComponent

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

MenuBar, MenuItem
```
public abstract class MenuComponent
extends Object
implements Serializable
```
The abstract class MenuComponent is the superclass of all menu-related components. In this respect, the class MenuComponent is analogous to the abstract superclass Component for AWT components.
Menu components receive and process AWT events, just as components do, through the method processEvent.

Since:

JDK1.0

See Also:
Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`protected class`	`MenuComponent.AccessibleAWTMenuComponent` Inner class of `MenuComponent` used to provide default support for accessibility.

Constructor Summary

Constructors
Constructor and Description

MenuComponent()
Creates a MenuComponent.

Constructors
Constructor and Description
`MenuComponent()` Creates a `MenuComponent`.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`dispatchEvent(AWTEvent e)` Delivers an event to this component or one of its sub components.
`AccessibleContext`	`getAccessibleContext()` Gets the `AccessibleContext` associated with this `MenuComponent`.
`Font`	`getFont()` Gets the font used for this menu component.
`String`	`getName()` Gets the name of the menu component.
`MenuContainer`	`getParent()` Returns the parent container for this menu component.
`java.awt.peer.MenuComponentPeer`	`getPeer()` Deprecated. As of JDK version 1.1, programs should not directly manipulate peers.
`protected Object`	`getTreeLock()` Gets this component's locking object (the object that owns the thread sychronization monitor) for AWT component-tree and layout operations.
`protected String`	`paramString()` Returns a string representing the state of this `MenuComponent`.
`boolean`	`postEvent(Event evt)` Deprecated. As of JDK version 1.1, replaced by `dispatchEvent`.
`protected void`	`processEvent(AWTEvent e)` Processes events occurring on this menu component.
`void`	`removeNotify()` Removes the menu component's peer.
`void`	`setFont(Font f)` Sets the font to be used for this menu component to the specified font.
`void`	`setName(String name)` Sets the name of the component to the specified string.
`String`	`toString()` Returns a representation of this menu component as a string.

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

- Constructor Detail
  - MenuComponent
```
public MenuComponent()
              throws HeadlessException
```
    Creates a MenuComponent.
    
    Throws:
    
    HeadlessException - if GraphicsEnvironment.isHeadless returns true
    See Also:
    GraphicsEnvironment.isHeadless()
- Method Detail
  - getName
```
public String getName()
```
    Gets the name of the menu component.
    
    Returns:
    the name of the menu component
    Since:
    
    JDK1.1
    
    See Also:
    setName(java.lang.String)
  - setName
```
public void setName(String name)
```
    Sets the name of the component to the specified string.
    
    Parameters:
    name - the name of the menu component
    Since:
    
    JDK1.1
    
    See Also:
    getName()
  - getParent
```
public MenuContainer getParent()
```
    Returns the parent container for this menu component.
    
    Returns:
    the menu component containing this menu component, or null if this menu component is the outermost component, the menu bar itself
  - getPeer
```
@Deprecated
public java.awt.peer.MenuComponentPeer getPeer()
```
    Deprecated. As of JDK version 1.1, programs should not directly manipulate peers.
  - getFont
```
public Font getFont()
```
    Gets the font used for this menu component.
    
    Returns:
    the font used in this menu component, if there is one; null otherwise
    See Also:
    setFont(java.awt.Font)
  - setFont
```
public void setFont(Font f)
```
    Sets the font to be used for this menu component to the specified font. This font is also used by all subcomponents of this menu component, unless those subcomponents specify a different font.
    Some platforms may not support setting of all font attributes of a menu component; in such cases, calling setFont will have no effect on the unsupported font attributes of this menu component. Unless subcomponents of this menu component specify a different font, this font will be used by those subcomponents if supported by the underlying platform.
    
    Parameters:
    f - the font to be set
    See Also:
    getFont(), Font.getAttributes(), TextAttribute
  - removeNotify
```
public void removeNotify()
```
    Removes the menu component's peer. The peer allows us to modify the appearance of the menu component without changing the functionality of the menu component.
  - postEvent
```
@Deprecated
public boolean postEvent(Event evt)
```
    Deprecated. As of JDK version 1.1, replaced by dispatchEvent.
    
    Posts the specified event to the menu. This method is part of the Java 1.0 event system and it is maintained only for backwards compatibility. Its use is discouraged, and it may not be supported in the future.
    
    Parameters:
    evt - the event which is to take place
  - dispatchEvent
```
public final void dispatchEvent(AWTEvent e)
```
    Delivers an event to this component or one of its sub components.
    
    Parameters:
    e - the event
  - processEvent
```
protected void processEvent(AWTEvent e)
```
    Processes events occurring on this menu component.
    Note that if the event parameter is null the behavior is unspecified and may result in an exception.
    
    Parameters:
    e - the event
    Since:
    
    JDK1.1
  - paramString
```
protected String paramString()
```
    Returns a string representing the state of this MenuComponent. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null.
    
    Returns:
    the parameter string of this menu component
  - toString
```
public String toString()
```
    Returns a representation of this menu component as a string.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    a string representation of this menu component
  - getTreeLock
```
protected final Object getTreeLock()
```
    Gets this component's locking object (the object that owns the thread sychronization monitor) for AWT component-tree and layout operations.
    
    Returns:
    this component's locking object
  - getAccessibleContext
```
public AccessibleContext getAccessibleContext()
```
    Gets the AccessibleContext associated with this MenuComponent. The method implemented by this base class returns null. Classes that extend MenuComponent should implement this method to return the AccessibleContext associated with the subclass.
    
    Returns:
    the AccessibleContext of this MenuComponent
    Since:
    
    1.3

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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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DRAFT ea-b138

Class MenuComponent

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

MenuComponent

Method Detail

getName

setName

getParent

getPeer

getFont

setFont

removeNotify

postEvent

dispatchEvent

processEvent

paramString

toString

getTreeLock

getAccessibleContext