Java多变量排序ArrayList

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;

public class Main {
    public static void main(String[] args) {
        ArrayList<Person> list = new ArrayList<>();
        list.add(new Person("Alice", 25, 170));
        list.add(new Person("Bob", 30, 180));
        list.add(new Person("Charlie", 20, 160));

        // 自定义Comparator对象
        Comparator<Person> comparator = new Comparator<Person>() {
            @Override
            public int compare(Person p1, Person p2) {
                // 先比较年龄
                int ageCompare = Integer.compare(p1.getAge(), p2.getAge());
                if (ageCompare != 0) {
                    return ageCompare;
                }

                // 年龄相等时，比较身高
                return Integer.compare(p1.getHeight(), p2.getHeight());
            }
        };

        // 使用Comparator对象进行排序
        Collections.sort(list, comparator);

        // 输出排序结果
        for (Person person : list) {
            System.out.println(person.getName() + " " + person.getAge() + " " + person.getHeight());
        }
    }
}

class Person {
    private String name;
    private int age;
    private int height;

    public Person(String name, int age, int height) {
        this.name = name;
        this.age = age;
        this.height = height;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    public int getHeight() {
        return height;
    }
}