在JAVA中如何按两个标准排序？

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

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

        // 按照年龄升序排序，如果年龄相同则按照姓名升序排序
        Collections.sort(persons, new Comparator<Person>() {
            @Override
            public int compare(Person p1, Person p2) {
                if (p1.getAge() == p2.getAge()) {
                    return p1.getName().compareTo(p2.getName());
                } else {
                    return Integer.compare(p1.getAge(), p2.getAge());
                }
            }
        });

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

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;
    }
}