【代码】处放入哪个选项会引起编译错误class A{ public float getNum(){ return 2.0f; }}public class B extends A{ 【代码】}
选项:
A:public void getNum(){};
B:public void getNum(double d){};
C:public double getNum(float d){ return 4.0d;};
D:public float getNum(){ return 4.0f;}
发布时间:2024-03-31 19:49:34