今天我有一個a.jar的檔案,裡面main-class的名稱叫做main
我們都知道,執行這個a.jar的 ..

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1) Yes, it is legal, so it's compiled and able to run. But it's considering not a good programming style!

2) A name of a class should indicate or encapsulate the primary function of the class. The name, main to me is not too significant. And it may create confusion for further maintainese.