BasicMenuUI.ChangeHandler (Java SE 9 & JDK 9 )

java.lang.Object
- javax.swing.plaf.basic.BasicMenuUI.ChangeHandler

All Implemented Interfaces:

EventListener, ChangeListener

Enclosing class:

BasicMenuUI
```
public class BasicMenuUI.ChangeHandler
extends Object
implements ChangeListener
```
As of Java 2 platform 1.4, this previously undocumented class is now obsolete. KeyBindings are now managed by the popup menu.

Field Summary

Fields
Modifier and Type	Field	Description
`boolean`	`isSelected`	`true` if an item of popup menu is selected.
`JMenu`	`menu`	The instance of `JMenu`.
`BasicMenuUI`	`ui`	The instance of `BasicMenuUI`.
`Component`	`wasFocused`	The component that was focused.

Constructor Summary

Constructors
Constructor Description

ChangeHandler(JMenu m, BasicMenuUI ui)
Constructs a new instance of ChangeHandler.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

void stateChanged(ChangeEvent e)
Invoked when the target of the listener has changed its state.
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - menu
```
public JMenu menu
```
    The instance of JMenu.
  - ui
```
public BasicMenuUI ui
```
    The instance of BasicMenuUI.
  - isSelected
```
public boolean isSelected
```
    true if an item of popup menu is selected.
  - wasFocused
```
public Component wasFocused
```
    The component that was focused.
- Constructor Detail
  - ChangeHandler
```
public ChangeHandler(JMenu m,
                     BasicMenuUI ui)
```
    Constructs a new instance of ChangeHandler.
    
    Parameters:
    
    m - an instance of JMenu
    
    ui - an instance of BasicMenuUI
- Method Detail
  - stateChanged
```
public void stateChanged(ChangeEvent e)
```
    Description copied from interface: ChangeListener
    
    Invoked when the target of the listener has changed its state.
    
    Specified by:
    
    stateChanged in interface ChangeListener
    
    Parameters:
    
    e - a ChangeEvent object