An application that gets an integer and returns its digits in words.
The way the code works, it returns the words of these digits in reverse order. That is why a function that reverses the digits is needed.
The reversal mentioned above causes problems in case the integer ends with one or more zeros. Eg. 100 --> 001 --> 1. This can be solved with a function that counts the integer's number of digits. It is then used to print out the word "Zero" for every digit that was "lost" at the reversal.
The final result of the application is:
100 --> "One Zero Zero"
123 --> "One Two Three"