给定如下Java 代码,下列( )选项可以加入到Sub类中,并能保证编译正确。Class Super{public float getNum(){return 3.0f;}}public class sub extends Super{}
选项:
A:public float getNum(){return 4.0f;}
B:public void getNum(){}
C:public getNum(double d){}
D:public double getNum(flout d){return 4.0d;}
发布时间:2024-03-31 20:15:07