Java 8-使用比较器以不同的顺序比较多个字段

import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;

class Person {
    private String name;
    private int age;

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

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }
}

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

        // 按照姓名升序，年龄降序排序
        Comparator<Person> comparator = Comparator.comparing(Person::getName)
                .thenComparing(Comparator.comparingInt(Person::getAge).reversed());

        persons.sort(comparator);

        for (Person person : persons) {
            System.out.println(person.getName() + " " + person.getAge());
        }
    }
}

Alice 25
Alice 20
Bob 30