这道题有问题吧

http://img.mukewang.com/59a2d9570001d47813660768.jpg

子类重写的父类方法的修饰符范围应大于等于父类的修饰符范围,这道题的答案怎么会这样?!

慕娘7314981
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望远

JAVA 子类重写继承的方法时,不可以降低方法的访问权限,子类继承父类的访问修饰符要比父类的更大,也就是更加开放,假如我父类是protected修饰的,其子类只能是protected或者public,绝对不能是friendly(默认的访问范围)或者private所以A错D对

慕瓜9220888

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胜利女神在微笑

//因为你这个A类的修饰符已经是protected了, //所以子类的修饰符必须大于等于protected,要么也是protected要么是public, //private表示他的作用范围仅限于当前类,比protected作用域小, //因此不能使private
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