JAva找出并打印2023年休息日日期号出现最多的全部日期号

以下是Java实现该功能的代码：

import java.time.DayOfWeek;
import java.time.LocalDate;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class HolidayFinder {
    public static void main(String[] args) {
        LocalDate startDate = LocalDate.of(2023, 1, 1);
        LocalDate endDate = LocalDate.of(2023, 12, 31);

        // 找出所有是休息日的日期
        Map<Integer, Integer> holidays = new HashMap<>();
        while (!startDate.isAfter(endDate)) {
            if (startDate.getDayOfWeek() == DayOfWeek.SATURDAY || startDate.getDayOfWeek() == DayOfWeek.SUNDAY) {
                int dayOfMonth = startDate.getDayOfMonth();
                holidays.put(dayOfMonth, holidays.getOrDefault(dayOfMonth, 0) + 1);
            }
            startDate = startDate.plusDays(1);
        }

        // 找出出现次数最多的日期
        int maxCount = Collections.max(holidays.values());
        List<Integer> mostFrequentDates = new ArrayList<>();
        for (Map.Entry<Integer, Integer> entry : holidays.entrySet()) {
            if (entry.getValue() == maxCount) {
                mostFrequentDates.add(entry.getKey());
            }
        }

        // 打印结果
        System.out.println("2023年休息日日期号出现最多的全部日期号：");
        Collections.sort(mostFrequentDates);
        for (int date : mostFrequentDates) {
            System.out.println(date);
        }
    }
}

该代码会输出2023年休息日日期号出现最多的全部日期号。