Cash Register Calculate Change and Special Rule Divide by 3

[paulbenjamin3409]

Requirements

• Accept a flat file as input
• Each line will contain the amount owed and the amount paid separated by a comma (for example: 2.13,3.00)
• Expect that there will be multiple lines
• Output the change the cashier should return to the customer
• The return string should look like: 1 dollar,2 quarters,1 nickel, etc ...
• pluralize if there is more than one
• Each new line in the input file should be a new line in the output file
• special consideration: if amount owed is divisible by 3, the app should randomly generate the change

Questions

• What might happen if the client needs to change the random divisor? The divisor file allows for this input change. Input could be different mechanism
• What might happen if the client needs to add another special case (like the random twist)? There are placed marked for special cases, per transaction or per denomination
• What might happen if sales closes a new client in France? The denomination file can be based per country, it just needs to be created and placed