java开发实战经典（第二版）P217 6-1

本文链接：https://blog.youkuaiyun.com/Javaxiaobaismc/article/details/81254349

package com.bjpowernode;

interface ClassName{
    public String getClassName();
}
class Company implements ClassName{
    @Override
    public String getClassName() {
        return "Company";
    }
}
public class MyTest{
    public static void main(String args[]){
        ClassName n = new Company();
        System.out.println(n.getClassName());
    }
}

Company

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