# Interface CreditCardValidator.CreditCardType

Enclosing class:
  `CreditCardValidator`

public static interface CreditCardValidator.CreditCardType
CreditCardType implementations define how validation is performed for one type/brand of credit card.

Since:
  1.1.2

- ## Method Summary

  Modifier and Type
  Method
  Description
  `boolean`
  `matches(String card)`
  Returns true if the card number matches this type of credit card.

- ## Method Details

  - ### matches

    boolean matches(String card)
    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.
    Parameters:
      `card` - The card number, never null.
    Returns:
      true if the number matches.