java

The last digit of a credit card number is the check digit, which protects against transcription errors such as an error in a single digit or switching two digits. Considering 8-digit credit card numbers, the following method is used to verify actual credit card numbers. The credit card number 43589795 is used as an example: 1. Starting from the rightmost digit, form the sum of every other digit. For 43589795 , form the sum 5+7+8+3 which equals 23 . 2. Double each of the digits that were not included in the preceding step and add all digits of the resulting numbers. For example, with the number given above, doubling the digits, starting with the next-to-last one, results in 1818108. Adding all digits in these values results in 1+8+1+8+1+0+8=27. 3. Add the sums of the two preceding steps. If the last digit of the result is 0 , the number is valid. Otherwise, it is invalid. In our case, 23+27=50, so the number is valid. Write a program that implements this algorithm. The user should supply an 8-digit number and you should print out whether the number is valid or not. You SHOULD NOT use array or String variables in your code. Sample Inputs (in Red) /Outputs Sample 1: Enter credit card number: 43589795 Credit card is valid