java.lang.Object
- javax.swing.JComponent.AccessibleJComponent.AccessibleFocusHandler

All Implemented Interfaces:

FocusListener ， EventListener

Enclosing class:

JComponent.AccessibleJComponent
```
protected class JComponent.AccessibleJComponent.AccessibleFocusHandler
extends Object
implements FocusListener
```
FireChangeChange监听器，如果已注册，焦点事件发生时

从以下版本开始：

1.3

构造方法摘要

构造方法

Modifier Constructor and Description

protected AccessibleFocusHandler()

方法摘要

所有方法接口方法具体的方法
Modifier and Type	Method and Description
`void`	`focusGained(FocusEvent event)` 当组件获得键盘焦点时调用。
`void`	`focusLost(FocusEvent event)` 当组件丢失键盘焦点时调用。

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

- 构造方法详细信息
  - AccessibleFocusHandler
```
protected AccessibleFocusHandler()
```
- 方法详细信息
  - focusGained
```
public void focusGained(FocusEvent event)
```
    说明从界面复制： FocusListener
    
    当组件获得键盘焦点时调用。
    
    Specified by:
    
    focusGained在界面 FocusListener
  - focusLost
```
public void focusLost(FocusEvent event)
```
    说明从界面复制： FocusListener
    
    当组件丢失键盘焦点时调用。
    
    Specified by:
    
    focusLost在接口 FocusListener