Java0715/src/main/java/com/sf/javase/day16/User.java

package com.sf.javase.day16;

public class User implements Comparable{
    private int id;
    private String name;

    public User(int id, String name) {
        this.id = id;
        this.name = name;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
    }

    @Override
    public int compareTo(Object o) {
        if(o instanceof User){
            User user = (User) o;
            return this.id - user.id;
        }else {
            throw  new RuntimeException("类型异常");
        }
    }
}