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题目内容 (请给出正确答案)

class super {   public float getNum() {return 3.0f;}   }   public class Sub extends Super {   }   Which method, placed at line 6, will cause a compiler error?()

  • A、 Public float getNum() {return 4.0f; }
  • B、 Public void getNum (){}
  • C、 Public void getNum (double d){}
  • D、 Public double getNum (float d) {retrun 4.0f; }

参考答案

更多 “ class super {   public float getNum() {return 3.0f;}   }   public class Sub extends Super {   }   Which method, placed at line 6, will cause a compiler error?()A、 Public float getNum() {return 4.0f; }B、 Public void getNum (){}C、 Public void getNum (double d){}D、 Public double getNum (float d) {retrun 4.0f; }” 相关考题