public static String findDay(int month, int day, int year) {
        GregorianCalendar cal = new GregorianCalendar(year, month-1,day);
        int DayofWeek = cal.get(Calendar.DAY_OF_WEEK);
        String Day = new DateFormatSymbols().getWeekdays()[DayofWeek].toUpperCase();  
        return Day;
    }