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Java访问权限之Protected | LearningGp #24

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https://arvinhe.club/2020/12/20/JavaProtected%E6%9D%83%E9%99%90/#more

Java访问权限之Protected
有的没的
示例来自于Java 访问权限控制_CSDN,然后个人感觉原文很详细但是解释的不太自洽,自行解释了一下。
可见性规则

基类的protected成员是包内可见的,并且对子类可见;

(自己实现的类,仅包内以及子类可见)

若子类与基类不在同一包中,那么在子类中,子类实例可以访问其从基类继承而来的protected方法,而不能访问基类实

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