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我有两个类(Vector 和 Stack),一个扩展了另一个。Resourse 类有四种方法。

当我通过引用超类的子类对象时,它调用接受超类对象而不是子类的方法?为什么会发生这种情况?

 class Vector{
    
    }
    class Stack extends Vector{
    
    }
    public class Resources {
          public static void getIntS(Vector vector){
              System.out.println("Int of Vector");
          }
        public static void getIntS(Stack stack){
            System.out.println("Int of Stack");
        }
        public  void getInt(Vector vector){
            System.out.println("Int of Vector(Not static)");
        }
        public  void getInt(Stack stack){
            System.out.println("Int of Stack(Not static)");
        }
    
        public static void main(String[] args){
            Resources resources = new Resources();
            Vector vector = new Stack();
            Stack stack = new Stack();
            getIntS(vector);
            getIntS(stack);
            resources.getInt(vector);
            resources.getInt(stack);
        }
    }

输出 :

Int of Vector
Int of Stack
Int of Vector(Not static)
Int of Stack(Not static)
4

0 回答 0