如何使用java 8流对对象进行排序

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

public class ObjectSortingExample {
    public static void main(String[] args) {
        // 创建一个包含对象的集合
        List<Person> people = new ArrayList<>();
        people.add(new Person("Alice", 25));
        people.add(new Person("Bob", 30));
        people.add(new Person("Charlie", 20));

        // 使用流的sorted方法对对象进行排序
        List<Person> sortedPeople = people.stream()
                .sorted(Comparator.comparing(Person::getAge))
                .collect(Collectors.toList());

        // 打印排序后的结果
        for (Person person : sortedPeople) {
            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;
    }
}