标题: 关于面向对象，看出结果 [打印本页] 作者: 15638876427 时间: 2016-9-8 08:35 标题: 关于面向对象，看出结果 class A {
public String show(D obj){ D d =new D
return ("A and D");
}
public String show(A obj){ A obj=new B =new C =new D
return ("A and A");
}
}
class B extends A{
public String show(B obj){ new C
return ("B and B");
}
public String show(A obj){ new C
return ("B and A");
}
}
class C extends B{}
class D extends B{}
class DynamicTest
{
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));
}
}作者: czhmawy 时间: 2016-9-8 19:43
这个面孔很熟悉啊