class Super{public float getNum(){return 3.0f;}} public class Sub extends Super{ //overload } which method, placed at overload, will cause a compiler error?
选项:
A:public void getNum(double d){}
B:public void getNum(){}
C:public float getNum(){return 4.0f;}
D:public double getNum(float d){return 4.0d;}
发布时间:2024-03-31 20:15:22