Klasse IBANCheckDigit

java.lang.Object
org.oxt.toolbox.leitwegcheck.IBANCheckDigit
Alle implementierten Schnittstellen:
Serializable, CheckDigit
public final class IBANCheckDigit extends Object implements CheckDigit, Serializable
IBAN (International Bank Account Number) Check Digit calculation/validation.

This routine is based on the ISO 7064 Mod 97,10 check digit calculation routine.

The two check digit characters in a IBAN number are the third and fourth characters in the code. For check digit calculation/validation the first four characters are moved to the end of the code. So CCDDnnnnnnn becomes nnnnnnnCCDD (where CC is the country code and DD is the check digit). For check digit calculation the check digit value should be set to zero (i.e. CC00nnnnnnn in this example.

Note: the class does not check the format of the IBAN number, only the check digits.

For further information see Wikipedia - IBAN number.

Seit:
Validator 1.4
Version:
$Revision: 1739357 $
Siehe auch:

  • Felddetails

    • IBAN_CHECK_DIGIT

      public static final CheckDigit IBAN_CHECK_DIGIT
      Singleton IBAN Number Check Digit instance

  • Konstruktordetails

    • IBANCheckDigit

      public IBANCheckDigit()
      Construct Check Digit routine for IBAN Numbers.

  • Methodendetails

    • isValid

      public boolean isValid(String code) throws CheckDigitException
      Validate the check digit of an IBAN code.
      Angegeben von:
      isValid in Schnittstelle CheckDigit
      Parameter:
      code - The code to validate
      Gibt zurück:
      true if the check digit is valid, otherwise false
      Löst aus:
      CheckDigitException - unspecific error

    • calculate

      public String calculate(String code) throws CheckDigitException
      Calculate the Check Digit for an IBAN code.

      Note: The check digit is the third and fourth characters and is set to the value "00".

      Angegeben von:
      calculate in Schnittstelle CheckDigit
      Parameter:
      code - The code to calculate the Check Digit for
      Gibt zurück:
      The calculated Check Digit as 2 numeric decimal characters, e.g. "42"
      Löst aus:
      CheckDigitException - if an error occurs calculating the check digit for the specified code