promlem-statement-online-shopping.md

Case Study: Online Shopping System

Create a simplified online shopping system in Java, incorporating fundamental concepts such as classes, inheritance, and exception handling.

Requirements:

1. Create a Product Class:

   • Implement a Product class with attributes productName (String), productId (int), price (double), and quantityInStock (int).
   • Include a method displayDetails to print details of the product.

2. Derived Classes - Electronics and Clothing:

   • Create two classes, Electronics and Clothing, that inherit from the Product class.
   • Add attributes specific to each type (e.g., brand and warrantyPeriod for electronics, size and material for clothing).
   • Override the displayDetails method in each derived class to include information about the specific attributes.

3. Shopping Cart:

   • Create a ShoppingCart class to manage the user's shopping cart.
   • Include methods to add products to the cart, display the cart contents, and calculate the total price.

4. User Input and Exception Handling:

   • In the testing phase, simulate user input for adding electronics and clothing to the shopping cart.
   • Implement exception handling to ensure valid inputs for product creation (e.g., non-empty product name, positive product ID).
   • Throw DuplicateProductIDException when user tries to add product with similar id
   • Add deleteProduct(int id) and throw an exception ProductNotFoundException if the product is not available;