如何按月和年过滤对象数组- Java

import java.time.LocalDate;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

public class ObjectArrayFilter {
    public static void main(String[] args) {
        // 创建对象数组
        List<MyObject> objects = new ArrayList<>();
        objects.add(new MyObject("Object 1", LocalDate.of(2022, 1, 15)));
        objects.add(new MyObject("Object 2", LocalDate.of(2022, 2, 20)));
        objects.add(new MyObject("Object 3", LocalDate.of(2022, 3, 25)));
        objects.add(new MyObject("Object 4", LocalDate.of(2022, 4, 30)));

        // 按月过滤对象数组
        int targetMonth = 2;
        List<MyObject> filteredByMonth = objects.stream()
                .filter(obj -> obj.getDate().getMonthValue() == targetMonth)
                .collect(Collectors.toList());

        System.out.println("按月过滤结果：");
        for (MyObject obj : filteredByMonth) {
            System.out.println(obj.getName());
        }

        // 按年过滤对象数组
        int targetYear = 2022;
        List<MyObject> filteredByYear = objects.stream()
                .filter(obj -> obj.getDate().getYear() == targetYear)
                .collect(Collectors.toList());

        System.out.println("按年过滤结果：");
        for (MyObject obj : filteredByYear) {
            System.out.println(obj.getName());
        }
    }

    static class MyObject {
        private String name;
        private LocalDate date;

        public MyObject(String name, LocalDate date) {
            this.name = name;
            this.date = date;
        }

        public String getName() {
            return name;
        }

        public LocalDate getDate() {
            return date;
        }
    }
}