阅读以下代码,( )选项正确。interface Com{int add(int a,int b);}abstract class A{abstract int add(int a,int b);}class B extends A implements Com{public int add(int a,int b){return a+b;}}public class E{public static void main(String args[]){B b=new B( );Com com=b;System.out.println(com.add(12,6));A a=b;System.out.println(a.add(10,5));}}
选项:
A:程序运行结果:1015
B: 程序运行结果:1215
C: 程序运行结果:1815
D: 程序运行结果:1210
发布时间:2024-04-07 20:29:33