分区列表到Java8中的子列表

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

public class Main {
    public static void main(String[] args) {
        List<Person> personList = List.of(
                new Person("Alice", 25, Gender.FEMALE),
                new Person("Bob", 30, Gender.MALE),
                new Person("Charlie", 35, Gender.MALE),
                new Person("Diana", 28, Gender.FEMALE),
                new Person("Eva", 32, Gender.FEMALE)
        );

        Map<Boolean, List<Person>> partitionedMap = personList.stream()
                .collect(Collectors.partitioningBy(person -> person.getGender() == Gender.FEMALE));

        List<Person> femaleList = partitionedMap.get(true);
        List<Person> maleList = partitionedMap.get(false);

        System.out.println("Female List:");
        femaleList.forEach(System.out::println);

        System.out.println("Male List:");
        maleList.forEach(System.out::println);
    }
}

class Person {
    private String name;
    private int age;
    private Gender gender;

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

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    public Gender getGender() {
        return gender;
    }

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", gender=" + gender +
                '}';
    }
}

enum Gender {
    MALE,
    FEMALE
}