TreeSet自定义排序规则

package com.jason.springsentinel;

import java.util.Comparator;
import java.util.Iterator;
import java.util.TreeSet;

public class Test {
    //根据person的 ID排序
    public static TreeSet  personTreeSet=new TreeSet<>(new MyCompartor());
    //根据person的 score排序
    public static TreeSet  personTreeSetScore=new TreeSet<>(new MyCompartorScore());
    public static void main(String[] args) {

        //1.根据id排序
        personTreeSet.add(new Person("jason",100,100));
        personTreeSet.add(new Person("jerry",1,90));
        personTreeSet.add(new Person("jerry",3,90));
        personTreeSet.add(new Person("jerry",2,90));
        display(personTreeSet);

        //2.根据score排序
        personTreeSetScore.add(new Person("jason",100,60));
        personTreeSetScore.add(new Person("jerry",1,50));
        personTreeSetScore.add(new Person("tom",3,90));
        personTreeSetScore.add(new Person("henson",5,44));
        personTreeSetScore.add(new Person("henny",2,44));
        display(personTreeSetScore);


    }

    public static void   display(TreeSet personTreeSets)
    {
        Iterator  iterator=personTreeSets.iterator();
        System.out.println(personTreeSets.size());
        while (iterator.hasNext())
        {
            System.out.println(iterator.next().toString());
        }

    }
}
class MyCompartor  implements Comparator
{

    @Override
    public int compare(Person o1, Person o2) {
        int num=o1.id-o2.id;
        if(num==0)
        {
            num=o1.getName().hashCode()-o2.getName().hashCode();
        }
        return num;
    }
}
class MyCompartorScore  implements Comparator
{

    @Override
    public int compare(Person o1, Person o2) {
        int num=o1.getScore()-o2.getScore();
        if(num==0)
        {
            num=o1.getName().hashCode()-o2.getName().hashCode();
        }
        if(num==0)
        {
            num=o1.getId()-o2.getId();
        }
        if(num==0)
        {
            num=o1.getName().hashCode()-o2.getName().hashCode();
        }
        return num;
    }
}
class Person
{
    String name;
    int    id;
    int    score;

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

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

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public int getScore() {
        return score;
    }

    public void setScore(int score) {
        this.score = score;
    }
}