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The adapter for the interface is as follows: Sometimes we write an interface with multiple abstract methods, When we write the implementation class for the interface, All methods of the interface must be implemented, This is obviously wasteful at times, Because not all methods are what we need, Sometimes only a few are needed, In order to solve this problem here, we have introduced the adapter mode of the interface. With the help of an abstract class, the abstract class implements the interface and all methods. However, we do not deal with the original interface, but only get in touch with the abstract class, so we write a class, inherit the abstract class and rewrite the methods we need. Take a look at the class diagram:地球能源枯竭，林一为改变命运，参加《灵神大陆》游戏内测，却因系统故障丧失记忆，受困游戏，在与奸商系统蛤蟆白驹的讨价还价中，林一多了个极其凶残的外挂，莫名其妙踏上修炼路，唯一美中不足的，是这系统有点费灵石。但是自从越军攻陷临江国之后，情况就发生了许多的改变，越国是一个足矣和汉国相抗衡的诸侯国。谁封的？……应该是您舅舅吧。姜涛台湾参演新剧《超感应学园》与蔡凡熙合组「六小福」没见过你这么笨的，连句笑话也听不出来。