abstract classes and interfaces 抽象类和接口 altitude of the reflecting interfaces 反射界面高度 ..
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Capture highlevel, stable concepts in abstract classes and interfaces and provide implementations using concrete classes.
在抽象的类和接口中捕捉高级、稳定的概念，并用具象类实现。
Behaviors do not provide true "multiple inheritance" support for core language features like abstract classes and interfaces.
行为不提供真的“多重继承”为核心的语言特点，如抽象类和接口的支持。
During the technical interviews, probably the most frequently asked question is, "What's the difference between Java abstract classes and interfaces?"
在一次面试中，最频繁的问题可能是：抽象类和接口有什么区别？
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