This is the first BlueJ application that will offer a user interface so that the application can be run by a user without using the BlueJ Object Bench. It is based on the Stock Manager which contained a list of products that were being stocked and sold.

This application uses the StockManager and Product classes from App04 and adds a user interface class StockApp and a Program class which can be used to run the application without having to create any objects first.

The InputReader class is there to assist simple user input in the terminal window sometimes referred to as the console or command window.

The application should be a standard Java Application with a Program class and a main() method which can be used without creating a Program object. The main() method in the Program class should create a StockApp which can print out a simple heading with the name of the application and the author name (you). It should look something like what is shown below

Most methods accesses by the user should include good, clear messages to the user (System.out.println), and any method should print out messages to the use that cover most of the simple mistakes a user could make. Marks will be deducted for unclear or incomplete messages to the user.

The first feature that is required by the user is to be offered a menu of choices. The user will enter their choice as a word, and in the first instance the menu can just offer the following choices:-

1. Add a new Product to stock list
2. Print all the products in stock
3. Quit the application

Once the basic menu is working then extend the menu to offer the following additional features. You may want to use the StockDemo class to add more products to the stock to make testing easier.

1. Remove a product from stock list
2. Deliver a quantity of product
3. Sell a quantity of product
4. Print all the products in stock
5. Search and print a list of products based on part of the product name
6. Low Stock print a list of products whose stock levels are low
7. Re-Stock Re-stock all the low stock items up to a set minimum level
8. Quit the application

The student must complete the following black box tests. The actual product and id can be changed

Test No	Proposed Test	Data Entered	Expected Result	Actual Result	Comments
01	Add Product	id = 115, Name = "iPhone XS Max"	Product added	You have added 115: iPhone XS Max stock level: 0	N/A
02	Add Product	id = 116, Name = "NZXT Watercooler"	Product added	You have added 116: NZXT watercooler stock level: 0	N/A
03	Add Product	id = 117, Name = "Corsair 16gb Ram DDR4"	Product added	You have added 117: Corsair 16gb Ram DDR4 stock level: 0	N/A
04	Add Product	id = 118, Name = "Razer Mouse"	Product added	You have added 118: Razer Mouse stock level: 0	N/A
05	Add Product	id = 119, Name = "Benq Monitor"	Product added	You have added 119: Benq Monitor stock level: 0	N/A
06	Add Product (duplicate ID)	id = 100, name = "Sony Playstation"	Error Message	This Product ID already Exists	N/A
07	Add Product (blank name)	id = 116, name = ""	Error Message	Need to add a method to preform this check
08	Remove Product	id = 100	Product removed	This Product has been removed	N/A
09	Remove Product (invalid ID)	id = 200	Error Message	Method works need to adjust the printline for user
10	Print All Products	Print Chosen	All Products listed	12 Products Listed	N/A
11	Deliver Product	id = 111, amount = 5	quantity = 5	Product delivered :111: Sony Tv stock level: 5	N/A
12	Deliver Product (-ve amount)	id = 102, amount = -5	Error Message	Attempt to restock Razer Mobile with a non-positive amount: -5	N/A
13	Sell Product	id = 100, amount = 2	quantity = 5	100: Samsung Mobile stock level: 4 Sold 2 of Samsung Mobile	N/A
14	Sell Product (> stock)	id = 100, amount = 5	quantity = 4	Attempt to sell an out of stock item: In Stock 4 Ordered Amount : 5 We only have : 4 Currently in Stock	N/A
15	Sell Product (-ve quantity)	id = 100, quantity = -2	Error Message	100: Samsung Mobile stock level: 4 The amount cannot be negative number	N/A
16	Search Product	name = "Apple"	3 Product Listed	101: Apple Mobile stock level: 0 104: Apple Mac stock level: 0 110: Apple iPad stock level: 0	N/A
17	Low Stock	amount = 2	10 Products Listed	101: Apple Mobile stock level: 0 102: Razer Mobile stock level: 0 103: Samsung Tv stock level: 0 104: Apple Mac stock level: 0 105: Xbox stock level: 0 107: Alienware Laptop stock level: 0 108: LG Mobile stock level: 0 109: LG Tv stock level: 0 110: Apple iPad stock level: 0 111: Sony Tv stock level: 0	N/A

Links to Testing files

Tests 1 to 7.txt
Tests 8 to 17.txt

Be able to add more than one item to a sale, (Basket Class)

If more than One item is able to be added, function to remove or total basket.

Search Function for both Name and ID

Price for Products

Transaction system able to imitate till procedures, Sell, change, refund etc.