Shopping Management System

This Java project implements a shopping management system with a focus on inheritance and encapsulation principles. The system includes a console-based menu for the manager and a graphical user interface (GUI) for the client.

Table of Contents

1. Overview
2. Classes and Implementation
   • Product (Abstract)
   • Electronics
   • Clothing
   • User
   • ShoppingCart
   • WestminsterShoppingManager
3. Console Menu Implementation (Phase 2)
4. Graphical User Interface (GUI) Implementation (Phase 3)
5. File Handling
6. How to Run

Overview

The shopping management system allows a manager to add, delete, and view products (Electronics and Clothing) through a console menu. Clients interact with the system through a GUI, where they can view products, add them to a shopping cart, and see the final price with applicable discounts.

Classes and Implementation

Product (Abstract)

The Product class is an abstract superclass that includes:

• productID (String): A mix of characters and numbers
• productName (String)
• availableItems (int)
• price (double)

Includes appropriate getter and setter methods and at least one constructor.

Electronics

The Electronics subclass extends Product and includes:

• brand (String)
• warrantyPeriod (int)

Includes appropriate getter and setter methods and at least one constructor.

Clothing

The Clothing subclass extends Product and includes:

• size (String)
• color (String)

Includes appropriate getter and setter methods and at least one constructor.

User

The User class represents a user account and includes:

• username (String)
• password (String)

Includes appropriate getter and setter methods and at least one constructor.

ShoppingCart

The ShoppingCart class represents a user's cart and includes:

• A list of Product objects

Methods:

• addProduct(Product product)
• removeProduct(Product product)
• calculateTotalCost()

WestminsterShoppingManager

The WestminsterShoppingManager class implements the ShoppingManager interface and maintains the list of products. It provides methods for:

• Adding a new product
• Deleting a product by product ID
• Printing the list of products
• Saving and loading products from a file

Console Menu Implementation (Phase 2)

The console menu allows the manager to:

• Add a new product (Electronics or Clothing)
• Delete a product by ID
• Print the list of products (ordered alphabetically by product ID)
• Save the list of products to a file

Graphical User Interface (GUI) Implementation (Phase 3)

The GUI allows the client to:

• Select the type of product to view (All, Electronics, Clothing) from a drop-down menu
• View a table of products with all relevant information
  • Items with less than 3 available appear in red
  • Product details appear in a panel below the table when selected
• Add products to a shopping cart
• View the shopping cart with a list of products and the final price

File Handling

The system saves the list of products to a file and loads it upon starting the application, allowing it to persist data across sessions.

How to Run

1. Compile all the Java files.
2. Run the Main class to start the console menu.
3. Select the option to open the GUI from the console menu.