Print appropriate messages to let the user know if the card is valid or not valid.

Use of the Random class is required, and you may not use arrays.

You may find the following comments helpful to guide your work:

set up a Scanner, set up a boolean named validCreditCard and set it to false

loop while not a valid credit card , prompt the user for a potential credit card number

Get the credit card number as a String - store in potentialCCN (use scanner's nextLine)

use Luhn to validate credit card using the following steps:

store the digit AS AN INT for later use in lastDigit (probably requires Integer.parseInt(String)

TEST then comment out! - check the last digit - System.out.println(lastDigit);

remove the last digit from potentialCCN and store in potentialCCN using String's substring

TEST then comment out! - check potentialCCN - System.out.println(potentialCCN);

create reversedCCN as a empty String

reverse the digits using a for loop by adding characters to reversedCCN

TEST then comment out! - check reversedCCN - System.out.println(reversedCCN);

set boolean isOddDigit to false, set up an integer called current digit and set it to , create an integer named sum and set it to 0

multiply the digits in odd positions by 2, then subtract 9 from any number higher than 9 using:

(for loop running 0 to less than length of reversed CCN), set currentDigit equal to the integer version of the current character

Test then comment out! - currentDigit -System.out.print(currentDigit), toggle isOddDigit

if isOddDigit, multiply currentDigit by 2 and store in currentDigit

if currentDigit > 9, subtract 9 from currentDigit and store in currentDigit

TEST then comment out - Check currentDigit - System.out.println(currentDigit);

end if isOddDigit

Comment in this segment for a useful test output string, System.out.print(currentDigit);

if (i>=reversedCCN.length()- ,System.out.println()

else System.out.print(" + "); end of segment, add currentDigit to sum and store in sum

end reverse the string

TEST and comment out - System.out.println("sum:"+sum);

if the last digit of sum is equal to lastDigit, set isValidCreditCard to true

if validCreditCard is false, output an appropriate message

end while that checks for valid credit card ,issue a RANDOM PIN and print it out - no more help