Order Entry System in Java

Design, implement and code an Order Entry System. - use the drinks from the decorator pattern in our book - add a product of your own (this can be anything) - implement the pizzas from the book including ingredients - use the patterns: strategy, observer, decorator, factory method, abstract factory, and singleton Write up details including choices made and why. The reference book is to big to upload to freelancer so I put it up on yousendit. Here's the link: [login to view URL] No UI is needed but I do need test cases