I want to set up a function to get the first day and the last day of the Persian year and display it in a list for weeks, and do it with a Gregorian date to pass to the function. I want to use this code on Android Studios.

Example

    public class Week {
        public String start_date;
        public String end_date;
    }
    public list GetWeek(Date date) {
      //return list 
       
      //   start_date = 1396-01-01 ;
      //  end_date = 1396-01-07;

      //......
      // And by the end of the year like that
    }

I also used the Persian Calendar library, but it does not work in the loop

Code

CurrentPersianDate = new PersianDate();
        NextPersianDate = new PersianDate();

        CurrentPersianDate.setShYear(1396);
        CurrentPersianDate.setShDay(1);
        CurrentPersianDate.setShMonth(1);

        NextPersianDate.setShYear(1397);
        NextPersianDate.setShDay(1);
        NextPersianDate.setShMonth(1);

        while (CurrentPersianDate.before(NextPersianDate)) {
            CurrentPersianDate.addWeek(1);
            LOG(CurrentPersianDate.getShYear() + " " + CurrentPersianDate.getShMonth() + " " +
            CurrentPersianDate.getShDay() , "");
        }