A valid credit card number has several fields and each of them has a meaning. For the technically inclined, this number complies to the ISO 7812 numbering standard. An contains a six-digit issuer identification number (IIN), an individual account identification number, and a single digit checksum.
The credit card numbers you generate on this page are completely random. When we say they are valid, we merely imply that they are a possible combination of characters which will validate when passed through the MOD 10 algorithm. You can also generate valid credit card numbers for specific Issuing Networks by utilising their particular prefixes. However, we do not provide you (obviously) with the correspondent verification code for these cards, as they are completely fake and made up randomly.
If you've ever found yourself trying to try a product online which required a credit card, even when you just want to take a look, you know why we made this. We believe there's no need to share such information with providers without the actual intent to buy stuff. Anyone can make a website with a form and require you to insert valuable and sensitive information which requires you to give up your privacy. This is a way to protect yourself in such situations.
The other reason we made this are programmers testing ecommerce websites, applications or other software. They usually need lots of fake data, and this is a very easy way to generate a bunch of valid credit card numbers in a split second. There's another tool for those times when you need to generate all other kinds of data.
Each number valid for use for one person. We are adding more than 100 Numbers new and updated permanently to all kinds of credit cards such as Visa, MasterCard, American Express and Discover And they are placed inside a txt file for download with direct link and it does not contain any viruses or spyware and without doing Surveys. Attention : Don’t give your credit card numbers to anyone else because each number valid for use for one person and so that no one cheat you.freegeneratorhack.com
I am sorry I meant it always gives "The Credit Card Number is Valid" if the number start with 4, 5 or 37. It doesn't follow the second condition which is related to the total of sumOfOddPlace and sumOfDoubleEvenPlace methods. – user3126388 Dec 23 '13 at 9:38. Okay, so the problem is that your program is treating all card numbers as VALID and not INVALID.stackoverflow.com
On an actual credit card, the digits of the embossed card number are usually placed into groups of four. That makes the card number easier for humans to read.Below given regex assumes that before performing the check for a valid number, you will search-and-replace all spaces and hyphens explicitly. With spaces and hyphens stripped from the input, the next regular expression checks if the credit card number uses the format of any of the six major credit card companies.howtodoinjava.com