Grocery Store Scanner Project

This assignment requires creating a grocery store project that allows users to either add new products or use existing ones in a cash register-like system. The program must be able to read and write files, use an array or list, and handle UPC code scanning. New product entry involves scanning the UPC code into a file, entering description, cost, and quantity. Existing products are used as-is, with the program deducting quantity and calculating tax. A message appears when the product quantity falls to 3, prompting restocking. The final screen allows users to update quantities and prices.

Grocery Store Project.
Objective of this project:
 Practice with reading and writing to files
 Using a scanner as an input
 Using an array or an array list
Your project must complete the following tasks:
Your opening screen will ask if this is a new product or an existing product. If it is a new product you
will..
1. Scan the upc code into a file.
2. Enter the description of the item, the cost of the item, and the quantity. The description must
be the actual product. The cost and quantity can be made up.
If the product exists. Your project should act as a cash register.
1. Scan the product, have the product information display on the screen
2. Deduct the quantity
3. Keep a running total
4. Calculate tax
5. Display the total at the end.
6. When the product quantity is at 3, a message of time to restock should appear at the bottom of
the screen.
The final screen will allow you to scan the upc code and update the quantity and price as needed.