PreferencesEvent (Java SE 9 & JDK 9 )

java.lang.Object
- java.util.EventObject
- - java.awt.desktop.AppEvent
  - - java.awt.desktop.PreferencesEvent

All Implemented Interfaces:

Serializable
```
public final class PreferencesEvent
extends AppEvent
```
当请求应用程序打开其首选项窗口时发送事件。

从以下版本开始：

9

另请参见：

PreferencesHandler.handlePreferences(java.awt.desktop.PreferencesEvent) ， Serialized Form

Field Summary
- Fields inherited from class java.util.EventObject
  source

构造方法摘要

构造方法
Constructor	描述
`PreferencesEvent()`	构造一个 `PreferencesEvent`

方法摘要
- Methods inherited from class java.util.EventObject
  getSource, toString
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- 构造方法详细信息
  - PreferencesEvent
```
public PreferencesEvent()
```
    构造一个 PreferencesEvent