Method isDinersClub

src/main/java/com/jdon/util/UtilValidate.java:945–952

Checks to see if the cc number is a valid Diners Club number @param cc - a string representing a credit card number; Sample number: 30000000000004(14 digits) @return true, if the credit card number is a valid Diner's Club number, false otherwise

(String cc)

     *   @return  true, if the credit card number is a valid Diner's Club number, false otherwise
     */
    public static boolean isDinersClub(String cc) {
        int firstdig = Integer.parseInt(cc.substring(0, 1));
        int seconddig = Integer.parseInt(cc.substring(1, 2));

        if ((cc.length() == 14) && (firstdig == 3) && ((seconddig == 0) || (seconddig == 6) || (seconddig == 8)))
            return isCreditCard(cc);
        return false;
    }

    /** Checks to see if the cc number is a valid Carte Blanche number
     *   @param    cc - a string representing a credit card number; Sample number: 30000000000004(14 digits)