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子类可以继承父类的成员变量，作为自己的成员变量，在Java中子类也可以隐藏由父类继承来的成员变量，只要子类中声明的成员变量和父类的成员变量同名，就可以将其隐藏。需要的注意是：子类对象可以调用从父类继承的方法操作隐藏的成员变量。class People { public double xx; publ...

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java中更改子类同名成员变量，为什么父类成员变量也会改变：报错

public class B extends A { public B(String password) { super(password); &n...

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更新时间 2024-04-10 10:59:43

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