public interface AccessibleIcon 
      Accessible ),然后调用AccessibleContext.getAccessibleIcon()方法来确定对象是否支持AccessibleIcon接口。 
       如果返回值不为空,则该对象支持该接口。 
      Accessible , AccessibleContext 
       | Modifier and Type | Method and Description | 
|---|---|
| String | getAccessibleIconDescription()
              获取图标的描述。 
             | 
| int | getAccessibleIconHeight()
              获取图标的高度 
             | 
| int | getAccessibleIconWidth()
              获取图标的宽度 
             | 
| void | setAccessibleIconDescription(String description)
              设置图标的描述。 
             | 
String getAccessibleIconDescription()
void setAccessibleIconDescription(String description)
description - 图标的描述 
           int getAccessibleIconWidth()
int getAccessibleIconHeight()
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