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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:のどが渇く 椎名桔平 光石研1. Any action taken to avoid collision shall be taken in accordance with the provisions of the Articles of this Chapter, and, if the circumstances permit at that time, shall be positive, carried out as early as possible and with full attention to the use of good ship skills.If you are interested in or plan to do more complete weightlifting training, of course, it is quite worthwhile to make a pair of weightlifting shoes, and the investment is not very large.To do actual combat examples in other people's blogs;人生太长，有些事，别那么骄傲，哪有不跑偏的。-Optimized stability and voice functionality