java 当前时间获取过去4个季度时间

import java.time.LocalDate;
import java.time.Month;

public class Main {
    public static void main(String[] args) {
        LocalDate currentDate = LocalDate.now();
        int currentYear = currentDate.getYear();
        Month currentMonth = currentDate.getMonth();

        for (int i = 0; i < 4; i++) {
            Month quarterStartMonth = currentMonth.minus(3 * i);
            int quarterStartYear = currentYear;            if (quarterStartMonth.getValue() <= 0) {
                quarterStartMonth = quarterStartMonth.plus(12);
                quarterStartYear--;
            }
            LocalDate quarterStartDate = LocalDate.of(quarterStartYear, quarterStartMonth, 1);
            LocalDate quarterEndDate = quarterStartDate.plusMonths(3).minusDays(1);

            System.out.println("Quarter " + (i + 1) + " start date: " + quarterStartDate);
            System.out.println("Quarter " + (i + 1) + " end date: " + quarterEndDate);
        }
    }
}