Java子类访问权限的相关内容

Java - 子类的访问权限为何比父类大？

原因向上转型及Java程序设计维护、扩展的原因假设一个父类A 拥有的方法 public void setXXX(){} 可以被其他任意对象调用这个方法被子类 B 覆写后为 void setXXX(){} 即默认的访问权限，只能被本包极其子类所访问假设其他包中的对象 C 调用方法为get(A a) ...

java 只限子类或者同一包中的类的方法能访问的访问权限是什么？

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更新时间 2023-01-15 23:12:47

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