public static String findDay(int month, int day, int year) {
    String [] daysOfWeek = {"SATURDAY", "SUNDAY", "MONDAY", "TUESDAY", "WEDNESDAY",  "THURSDAY", "FRIDAY"};
    if (month < 3) {
        month += 12;
        year -= 1;
    }
    // h = (q + (13(m + 1)/5) + K + (K / 4) + (J / 4) + 5J) mod 7
    int dayOfWeek = (day + (13 * (month + 1) / 5) + year % 100 
        + (year % 100 / 4) + (year / 100 / 4) + 5 * (year / 100)) % 7;
    return daysOfWeek[dayOfWeek];
}