stevennoto / cashregister Goto Github PK

This is a coding exercise to create a simple cash register, which can show current balance, accept bills in, dispense bills out, and make change.

The cash register supports a number of interesting features:

• Support for arbitrary user-supplied sets of currency denominations
• Support for non-canonical denominations (denominations which are not multiples - this prevents use of simple greedy algorithms)
• Separate classes encapsulating all business logic, and command-line interface
• Full unit test coverage

The cash register can be operated by running Java with the main class, CashRegisterCLI.

Type 'usage' to see available commands. Supported commands include:

• show - shows cash register inventory.
• put x y z - puts money in register (a, b, c... are amounts per denomination).
• take x y z - takes money from register (a, b, c... are amounts per denomination).
• change x - shows change necessary to provide x, and takes money from register.
• usage - shows usage help.
• quit - exits the program.

Steven Noto (https://github.com/stevennoto/)

Public Domain