Java如何将公历转换为回历呢？

实现思路:
    借助Joda Time类实现日历的转换

import org.joda.time.Chronology;
import org.joda.time.LocalDate;
import org.joda.time.chrono.IslamicChronology;
import org.joda.time.chrono.ISOChronology;

public class Test {
    public static void main(String[] args) throws Exception {
        Chronology iso = ISOChronology.getInstanceUTC();
        Chronology b = IslamicChronology.getInstanceUTC();

        LocalDate todayIso = new LocalDate(2022,05, 19, iso);
        LocalDate todayB = new LocalDate(todayIso.toDateTimeAtStartOfDay(),
                                             b);
        System.out.println(todayB);
    }
}