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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:First, business skillsFriendly reminder: The above methods are risky, please use them carefully, and please back up important data during operation.第一部（新加坡版）：当核装置产生电磁脉冲杀死超过2亿人的电力时，一个十几岁的女孩必须帮助他的家人在一个黑暗的新世界中生存。　　身心俱疲的DJ决定换一个生活环境，他只身来到亚特兰大，进入声望很高的黑人学校--真理大学进修，尽管他对舞蹈的天赋和野心足以使他成为顶级舞者，然而由于DJ觉得在学校里过于拘束，再加上失去弟弟的痛苦，他一直隐忍着自己。正是在这样一个与自己的性格完全背道而驰的全新生活环境里，DJ却发现了一个“踏步舞”的世界。他是不是还活着呢？到了这生死关头，她才对这点产生疑惑，不再像平日那般笃定葫芦还活着。