Writing a program that coverts a zip code to a bar code:

The bar codes use large and small bars. We will use ':' as a small bar and '|' as a large bar.

Each digit has its own bar pattern.

1 is :::||

2 is ::|:|

3 is ::||:

4 is :|::|

5 is :|:|:

6 is :||::

7 is |:::|

8 is |::|:

9 is |:|::

0 is ||:::

The barcode also includes a check digit. The final digit added to the bar code verifies the previous numbers are correct.

To Determine the checksum:

Add all the digits together

Determine what needs to be added to make the total a multiple of 10

The bar code also always starts and ends with a large bar. This is used by the scanner to align the letter.

For the zipcode "19104":

The check digit is 5. The sum of the digits is 1+9+1+0+4 = 15. To make 15 a multiple of 10, we need to add 5.

The bar code will be |:::|||:|:::::||||::::|::|:|:|:|

The majority of work in this problem is done by digit. It makes sense to store the zip code as a string, not as an integer.

Write the function checksum(zip) that takes the zip code as a string and returns the check digit as a string.

Write a function barcode(zip) that takes a zip code as a string and returns the bar code.

Develop a main program that repeatedly asks the user for zip codes and converts them to bar codes. The program will run until the user enters "exit". Remember to use if name=="main".

Here is an example execution:

Welcome to Bar Code Generator

Enter Zip Code (exit to quit):

19104

Bar Code:

|:::|||:|:::::||||::::|::|:|:|:|

Enter Zip Code (exit to quit):

19128

Bar Code:

|:::|||:|:::::||::|:||::|:|:|::|

Enter Zip Code (exit to quit):

07004

Bar Code:

|||:::|:::|||:::||::::|::||:|::|

Enter Zip Code (exit to quit):

exit

Thanks using me.