Package io.github.multiform_validator

Class CreditCardValidator

java.lang.Object

io.github.multiform_validator.CreditCardValidator

public class CreditCardValidator
extends Object

Method Summary

Modifier and Type	Method	Description
static String	identifyFlagCard(String cardNumber)	Identifies the flag of a credit card based on its number.
static boolean	isCreditCardValid(String creditCard)	Validates a credit card number.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

isCreditCardValid

public static boolean isCreditCardValid(String creditCard)

Validates a credit card number.

Parameters:

creditCard - The credit card number to validate.

Returns:

true if the credit card number is valid, false otherwise.

Throws:

IllegalArgumentException - if the input value is null or empty.

identifyFlagCard

public static String identifyFlagCard(String cardNumber)

Identifies the flag of a credit card based on its number.

Parameters:

cardNumber - The credit card number.

Returns:

The flag of the credit card, or "Unknown" if the flag is not recognized.

Throws:

IllegalArgumentException - if the input value is null or empty.