结果 I'm abstract class. I am non abstract method in the abstract class. I override from abstract class从上面的例子可以看到,抽象类可以有构造器,有抽象方法和非抽象方法,可以有变量。非抽象方法,子类可以直接继承;而抽象方法子类必须实现。2.2 使用场景1...
**参考阅读** https://www.javatpoint.com/abstract-class-in-java https://www.differencebetween.com/difference-between-abstract-class-and-vs-interface/ https://www.javaworld.com/article/2077421/learn-java/abstract-classes-vs-interfaces.html 分类: java基础 好文要顶 关注我 收藏该文 微信分享 ...