By Richa Roy
Credit Card Validator is made by using a C++ programming language. It implements the Luhn algorithm to validate a credit card number and to determine what type of credit card it is.
This Credit Card Validator program checks whether the user’s credit card number is valid or not and it is developed by using the C++ programming language.
It implements the Luhn algorithm to check whether the credit card number is valid or not. The Luhn algorithm is a simple checksum formula used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers and etc, but it is mainly used to validate credit card numbers.
If the entered credit card number is valid, it checks which type of credit card it is, whether it is a Visa, MasterCard or an American Express, or another type of card. By performing some basic validations and operations it checks the validity of the card and also checks the credit card type.
It takes the user’s credit card numbers as input and it prints whether the credit card is VALID or INVALID as an output. If the entered credit card number is Valid it also prints the credit card type.