Java中的接口和抽象类
原文英文,约2000词,阅读约需8分钟。发表于: 。Interfaces and abstract classes are the essential components for achieving abstraction and polymorphism. What are Interfaces? An interface in Java is a reference type, similar to a...
接口和抽象类是实现抽象和多态的关键。接口只包含抽象方法、静态方法和常量,支持多重继承;抽象类不能直接实例化,可以包含抽象和具体方法。接口适合定义多个类的合同,而抽象类用于提供相关类的共同基础。