Exercise: Online Shopping System

In this exercise, you will create an Online Shopping System using Java, focusing on managing different types of products and user interactions.

$1.$ Begin by designing a blueprint for all products available in the online store. Consider common features such as a unique product ID$,$ name, description, price, and availability.

$2.$ Divide the products into categories like electronics, clothing, and accessories. Each category will have its own unique attributes, such as brand for electronics, size for clothing, and material for accessories.

$3.$ Think about how users will interact with the online store. They should be able to browse products, add them to a shopping cart, and proceed to checkout.

$4.$ Implement a system for managing user accounts. Users should be able to create an account, log in$,$ view their order history, and update their profile information.

$5.$ Create a central class for the online store to handle all functionalities. This class will maintain a collection of products, user accounts, and shopping carts. It will also provide methods for adding and removing products, managing user accounts, and processing orders.

$6.$ Develop a testing class to validate the functionality of your online shopping system. Test different scenarios, such as adding products to the store, adding them to the shopping cart, and completing a purchase.

This exercise is designed to enhance your grasp of key programming principles such as polymorphism, encapsulation, and inheritance

Hint :$$ You might or might not need to use these keywords!$$

abstract$,$ interface, class, override, final, extends, implements, and so on

give atleast one code full