A simplified e-commerce auction system implemented in Java. This project models essential features of a bidding and product-ordering platform, similar to core components of sites like eBay. It demonstrates the use of object-oriented design to build user-driven functionality such as bidding, product listings, ratings, and payment handling.
- OOP Design Patterns: Well-structured class architecture for
User,Product,Bid,Order, etc. - Data Modeling: Encapsulates core e-commerce concepts including payment methods, bidding logic, and product reviews
- Business Process Simulation: Represents full customer interaction flow from listing to bidding to payment
- Extensibility: Design allows easy addition of GUI, database, or web components
- Code Readability: Clear separation of concerns and entity responsibility
- Language: Java SE
- Structure: Standalone object model with entity interaction
- Execution: CLI or IDE (Eclipse / IntelliJ)
- Data Format: In-memory objects (can be extended to file or DB)
EBAY/ ├── src/ │ ├── Bid.java → Represents a bid placed by a user on a product │ ├── Product.java → Product details including current highest bid │ ├── User.java → Buyer or seller with personal info and ratings │ ├── Rating.java → Customer feedback mechanism │ ├── PaymentMethod.java → Models user's payment preferences │ └── Order.java → Handles post-auction transaction (shipping, payment)
- Open the
src/folder in Eclipse or IntelliJ - Create a
Main.javato test interaction between objects
cd EBAY/src
javac *.java
java Main