多选题
public class A {
public String show(D obj) {
return ("A and D");
}
public String show(A obj) {
return ("A and A");
}
}
public class B extends A{
public String show(B obj){
return ("B and B");
}
public String show(A obj){
return ("B and A");
}
}
public class C extends B{
}
public 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( );
}
}
下面描述正确的有：
发布于 2020-12-25 22:51:06
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