继承

package com.xynu.util;public class Person{public static void main(String[] args) {Chinese chinese=new Chinese();Amer amer=new Amer();chinese.say();amer.say();}}class Person2 {public void say(){};}class Chinese extends Person2{@Overridepublic void say(){System.out.println("中国话");}}class Amer extends Person2{@Overridepublic void say(){System.out.println("美国话");}}