E-Commerce Project in Java Source Code: A Complete Guide

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Introduction

In today’s digital era, e-commerce websites have revolutionized the way people shop. Whether you are a beginner or an experienced developer, building an E-Commerce Project in Java Source Code is a great way to understand how online shopping platforms work.

This guide will walk you through how to create an online shopping project in Java, provide a free e-commerce project source code, and explain essential concepts. Plus, we’ll answer common questions like What is an e-commerce website? and How to build an e-commerce project in Java?

What is an E-Commerce Website?

An e-commerce website is an online platform that allows businesses to sell products or services to customers. Examples include Amazon, eBay, Shopify, and Flipkart. The key components of an e-commerce system include:

• Product Catalog: A list of items available for purchase.
• Shopping Cart: A feature that allows users to add products before purchasing.
• Payment System: Integration with payment gateways.
• User Authentication: Secure login and registration.
• Order Management: Tracking and managing customer orders.

By developing an E-Commerce Website Project with Source Code, you can create your own shopping platform and understand real-world web development concepts.

How to Create an Online Shopping Project in Java?

Creating an e-commerce project in Java requires understanding Java programming, JSP/Servlets, Spring Boot, or Hibernate for backend development, and HTML/CSS, Bootstrap, or React for the frontend. Here’s a simple step-by-step guide:

Step 1: Set Up the Development Environment

• Install Java JDK
• Use Eclipse or IntelliJ IDEA as an IDE
• Set up a database (MySQL, PostgreSQL, or MongoDB)

Step 2: Create the Java Project

• Start a new Java project in your IDE.
• Define packages like model, service, and controller.

Step 3: Develop the Product Catalog

• Create a Product class with attributes like id, name, and price.

Step 4: Implement the Shopping Cart

• Develop a ShoppingCart class that allows adding and removing products.

Step 5: Develop the Backend

• Use Spring Boot and Hibernate to manage products and orders.

Step 6: Connect to a Database

• Use JDBC, Hibernate ORM, or JPA to store and retrieve data.

Step 7: Build the Frontend

• Use HTML, CSS, Bootstrap, and JavaScript for UI.
• Connect the frontend to the backend using AJAX or REST APIs.

Step 8: Deploy Your Project

• Deploy on a local server using Tomcat or host it on Heroku/AWS.

What is the Code for an E-Commerce Project in Java?

Below is a simple E-Commerce Project in Java source code example for a shopping cart system.

import java.util.*;

// Product Class
class Product {
    int id;
    String name;
    double price;

    Product(int id, String name, double price) {
        this.id = id;
        this.name = name;
        this.price = price;
    }

    @Override
    public String toString() {
        return id + " - " + name + " ($" + price + ")";
    }
}

// Shopping Cart Class
class ShoppingCart {
    List<Product> cart;
    
    ShoppingCart() {
        cart = new ArrayList<>();
    }
    
    void addProduct(Product product) {
        cart.add(product);
        System.out.println(product.name + " added to cart.");
    }
    
    void removeProduct(int productId) {
        cart.removeIf(product -> product.id == productId);
        System.out.println("Product with ID " + productId + " removed from cart.");
    }
    
    void viewCart() {
        System.out.println("Your Cart:");
        for (Product p : cart) {
            System.out.println(p);
        }
    }
    
    double calculateTotal() {
        double total = 0;
        for (Product p : cart) {
            total += p.price;
        }
        return total;
    }
}

// E-Commerce Application
public class ECommerceApp {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        ShoppingCart cart = new ShoppingCart();
        
        List<Product> products = new ArrayList<>();
        products.add(new Product(1, "Laptop", 800.00));
        products.add(new Product(2, "Smartphone", 500.00));
        products.add(new Product(3, "Headphones", 50.00));

        while (true) {
            System.out.println("\n1. View Products\n2. Add to Cart\n3. Remove from Cart\n4. View Cart\n5. Checkout\n6. Exit");
            System.out.print("Choose an option: ");
            int choice = scanner.nextInt();

            switch (choice) {
                case 1:
                    System.out.println("Available Products:");
                    for (Product p : products) {
                        System.out.println(p);
                    }
                    break;
                case 2:
                    System.out.print("Enter product ID to add: ");
                    int addId = scanner.nextInt();
                    for (Product p : products) {
                        if (p.id == addId) {
                            cart.addProduct(p);
                        }
                    }
                    break;
                case 3:
                    System.out.print("Enter product ID to remove: ");
                    int removeId = scanner.nextInt();
                    cart.removeProduct(removeId);
                    break;
                case 4:
                    cart.viewCart();
                    break;
                case 5:
                    System.out.println("Total Price: $" + cart.calculateTotal());
                    System.out.println("Thank you for shopping with us!");
                    return;
                case 6:
                    System.out.println("Exiting...");
                    return;
                default:
                    System.out.println("Invalid choice, try again.");
            }
        }
    }
}

Conclusion

Developing an E-Commerce Project in Java Source Code is a great way to learn Java programming, backend development, and web applications. This guide provided a step-by-step approach to creating an e-commerce website project with source code, along with a free e-commerce website project source code download.

Call to Action

• Download the E-Commerce Website Project with Source Code
• Try modifying the Java code for added functionality
• Share your project on GitHub and improve collaboration

For a full PDF version of this E-Commerce Project in Java, check out our E-Commerce Project in Java Source Code PDF Download. Happy coding! 🚀