Java program to produce check digit for 13 digit ISBN number.

Question

The last digit of an ISBN-13 is a check digit based on the first 12 digits.
design and code a program named Checkdigit that generates an
ISBN-13 check digit. For each input from the user your program must
a) obtain input from the user as a string using the Scanner method next();
b) if the length of the input is 9 characters then prepend with “978”
c) generate the check digit

Answer 1

First try to write code by yourself. If you get any problem then you can ask here.