阶段1 语言基础+高级_1-3-Java语言高级_02-继承与多态_第1节继承_4_区分子类方法中重名的三种...

以你之姓@ 2021-11-23 22:38 177阅读 0赞

局部变量和成员变量也会产生重名  
如何区分三种变量 重名的问题  
![87548-20190718220740428-1585547656.png][]  
新建父类  
![87548-20190718220740421-1543981421.png][]  
再新建子类继承父类  
![87548-20190718220740393-1904116011.png][]  
  
父类有num等于10  
![87548-20190718220740386-1668426265.png][]  
子类有num等于20  
![87548-20190718220740384-657220265.png][]  
子类定义局部变量Num等于30  
![87548-20190718220740395-1540687528.png][]  
这样就应该有三个num。父类一个num。子类一个num。还有子类的一个局部变量num  
![87548-20190718220740406-1332884377.png][]

# super #

在子类这里要是就想访问父类的num为10的 该怎么访问？这里介绍一个新的关键字super  
  
![87548-20190718220740423-87618744.png][]  
![87548-20190718220740431-343466989.png][]  
区分开了三个  
![87548-20190718220740389-733740256.png][]  
  
![87548-20190718220740402-959418107.png][]

转载于:https://www.cnblogs.com/wangjunwei/p/11210356.html

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[87548-20190718220740393-1904116011.png]: /images/20211122/e839be7031c0431ca5eee840c93cfa94.png
[87548-20190718220740386-1668426265.png]: /images/20211122/91df50704209467b8e48b6c4dd3c0091.png
[87548-20190718220740384-657220265.png]: /images/20211122/5f58c90c6c4246a69350c368e449d851.png
[87548-20190718220740395-1540687528.png]: /images/20211122/69808496a98f4f0ba565f693aa48604c.png
[87548-20190718220740406-1332884377.png]: /images/20211122/2176296158984547b2f63f51c131a126.png
[87548-20190718220740423-87618744.png]: /images/20211122/6141b1730ae54c79a54cb93d6ae791f3.png
[87548-20190718220740431-343466989.png]: /images/20211122/e521db715558473ca17f96c153408fd4.png
[87548-20190718220740389-733740256.png]: /images/20211122/63d92dbc5b7e44e8a5c716b22045c3fd.png
[87548-20190718220740402-959418107.png]: /images/20211122/4f9d1de4fef74a50be21cb8de205852f.png