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  • 10.23造人类;this关键字

    1.

    package cn.dede.w;

    public class Demoperson {

    public static void main(String[] args) {
    // TODO Auto-generated method stub
    Persondemo p1=new Persondemo(001,"MC刘备",43,"北京","定要到崂山去学仙!");
    Persondemo p2=new Persondemo(002,"MC关羽",35,"北京","定要到崂山去学仙!");
    Persondemo p3=new Persondemo(003,"MC张飞",48,"北京","定要到崂山去学仙!");
    Persondemo p4=new Persondemo(004,"MC诸葛亮",25,"北京","定要到崂山去学仙!");

    System.out.println(p1.introduce());
    System.out.println(p2.introduce());
    System.out.println(p3.introduce());
    System.out.println(p4.introduce());

    }

    }

    2.E2

    package cn.dede.w;

    public class Persondemo {
    public int id;
    public String name;
    public int age;
    public String city;
    public String songs;
    public String introduce() {
    return "我是" + id + "号, 叫 " + name + ", 今年" + age + "岁了, 来自" + city + " a ~ " + songs;
    }
    public Persondemo(int id,String name,int age,String city,String songs) {
    this.id=id; //this关键字,表达的含义是当前对象 .表示当前对象的某个调用
    this.name=name;
    this.age=age;
    this.city=city;
    this.songs=songs;

    }
    }

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  • 原文地址:https://www.cnblogs.com/dede-6/p/7750828.html
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