Self-Checkout Station

This Java-based self-checkout station simulation demonstrates comprehensive software engineering principles through the creation of a realistic retail automation system. The project combines graphical user interface development with complex business logic to create an intuitive and efficient checkout experience.

The GUI implementation using JavaFX provides a modern, user-friendly interface that mimics real-world self-checkout systems, featuring barcode scanning, real-time cart management, and an intuitive payment interface. The system includes sophisticated payment processing logic handling various payment methods, tax calculations, and inventory updates with proper error handling. Quality assurance is ensured through comprehensive unit testing using JUnit, covering all major functionality. The project showcases object-oriented design principles with well-structured classes and modular architecture suitable for educational and real-world applications.