inner class

基本解释

Make an inner class in the parent class, which is a test case.
在父類中建立一個內部類，這個內部類是個測試用例。
Instance initializers allow you to execute construction code for an anonymous inner class.
實例初始化器允許您爲一個匿名內部類執行搆造代碼。
The code in Listing 1 would be much neater if the anonymous class was placed separately as an inner class.
如果這個匿名類可被作爲一個內部類單獨放置，那麽清單 1 中的代碼將會簡潔很多。

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