public static boolean isCorrectDate(int day, int month, int year)
    {
        boolean isLeapYear = ((year % 4 == 0) && (year % 100 != 0) || (year % 400 == 0));
        if(year > 0)
        {
            if(month >= 1 && month <= 12)
            {
                if((month == 4 || month == 6 || month == 9 || month == 11) &&  day <= 30)
                    return true;
                else if((month == 2 && day <= 28) || (month == 2 && day <= 29 && isLeapYear))
                    return true;
                else if((month == 12 || month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10) &&  day <= 31)
                    return true;
                else
                    return false;
            }
            else
                return false;
        }
        else
            return false;
    }