class A {
public String show(D obj){
return ("A and D");
}
public String show(A obj){
return ("A and A");
}
}
class B extends A{
public String show(B obj){
return ("B and B");
}
public String show(A obj){
return ("B and A");
}
}
class C extends B{}
class D extends B{}
public class test{
public static void main(String []args)
{
A a1 = new A();
A a2 = new B();
B b = new B();
C c = new C();
D d = new D();
System.out.println(a1.show(b));
System.out.println(a1.show(c));
System.out.println(a1.show(d));
System.out.println(a2.show(b));
System.out.println(a2.show(c));
System.out.println(a2.show(d));
System.out.println(b.show(b));
System.out.println(b.show(c));
System.out.println(b.show(d));
}
}
输出结果：
A and A
A and A
A and D
B and A
B and A
A and D
B and B
B and B
A and D
对以上的输出不是很理解，特别是第4个，有没有大神能帮帮我？作者: 我love 时间: 2016-5-23 01:00
我也看疯掉啦