示例中的以粗体显示的第一行对 PlacementServiceMBean实例调用getCoreGroups()方法。
The first bold line in the example invokes the getCoreGroups() method on the PlacementServiceMBean instance.
两种方法都会在调用委托时显示一条消息。
In each case, a message is displayed when the delegate is invoked.
两种方法都会在调用委托时显示一条消息。
In each case, a message is displayed when the delegate is invoked.
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