Class CreditCardValidator.Mastercard

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static java.lang.String PREFIX  
    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private Mastercard()  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean matches​(java.lang.String card)
      Returns true if the card number matches this type of credit card.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • Mastercard

        private Mastercard()
    • Method Detail

      • matches

        public boolean matches​(java.lang.String card)
        Description copied from interface: CreditCardValidator.CreditCardType
        Returns true if the card number matches this type of credit card. Note that this method is not responsible for analyzing the general form of the card number because CreditCardValidator performs those checks before calling this method. It is generally only required to valid the length and prefix of the number to determine if it's the correct type.
        Specified by:
        matches in interface CreditCardValidator.CreditCardType
        Parameters:
        card - The card number, never null.
        Returns:
        true if the number matches.