src/task4/Main.java - master - vnni18/javacore-96_lambdaTask2

src/task4/Main.java
45 строк2 KB
vnni18
lambda-task2: new code
10 окт 2025, 19:32
10 окт 2025, 19:32e108b06
package task4;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Comparator;
import java.util.List;
import java.util.Random;

public class Main {

    public static void main(String[] args) {
        List<String> names = Arrays.asList("Jack", "Connor", "Harry", "George", "Samuel", "John");
        List<String> families = Arrays.asList("Evans", "Young", "Harris", "Wilson", "Davies", "Adamson", "Brown");
        Collection<Person> persons = new ArrayList<>();
        for (int i = 0; i < 10_000_000; i++) {
            persons.add(new Person(
                    names.get(new Random().nextInt(names.size())),
                    families.get(new Random().nextInt(families.size())),
                    new Random().nextInt(100),
                    Sex.values()[new Random().nextInt(Sex.values().length)],
                    Education.values()[new Random().nextInt(Education.values().length)])
            );
        }

        long countYoungPerson = persons.stream()
                .filter(person -> person.getAge() < 18)
                .count();

        List<String> familySolderList = persons.stream()
                .filter(person -> Sex.MAN.equals(person.getSex()) && person.getAge() >= 18 && person.getAge() <= 27)
                .map(Person::getFamily)
                .toList();

        List<Person> workingPersonList = persons.stream()
                .filter(person -> Education.HIGHER.equals(person.getEducation()))
                .filter(person ->
                        Sex.MAN.equals(person.getSex()) && person.getAge() >= 18 && person.getAge() <= 65
                                || Sex.WOMAN.equals(person.getSex()) && person.getAge() >= 18 && person.getAge() <= 60)
                .sorted(Comparator.comparing(Person::getFamily))
                .toList();


    }
}