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)