Reservation-System

Today we wrapped up our reservation system implementation and embarked on an exciting new project - a card game that will help us explore more Java concepts. The code changes from this session can be found here. Day 4 Summary Overview Completed the reservation system implementation and started a new card game project, focusing on clean domain modeling and modern Java features. Environment & Tools Practiced proper Git workflow Feature branch management Meaningful commit messages Branch switching and merging Used zsh Git shortcuts effectively Concepts Covered Reservation System Completion Optional usage for null safety Queue operations (peek vs poll) Stream operations for collection manipulation Proper exception handling Event notification patterns Card Game Foundation Domain modeling with immutable types Enum usage and customization String manipulation utilities Collection operations Modern Java Features Records for immutable data Enhanced switch expressions String formatting List operations (removeLast) Stream collectors Design Patterns & Principles Immutable value objects Single responsibility principle Utility class patterns Clean code naming conventions Implementation Progress Completed ReservationService implementation Created foundation for card game: Card, Rank, and Suit implementations Deck management Card drawing mechanisms toString representations Key Takeaways Java’s modern features support clean, expressive code Importance of proper string representation Value of distinguishing between display and debug formats Collection choice impacts performance Next Steps Ready to explore: ...

Today we expanded our Library Management System with a reservation feature while deepening our understanding of Git workflows and modern Java features. The code changes from this session can be found here. Day 3 Summary Overview Started implementing a reservation system for the Library Management System while learning about Git workflows and exploring Java concepts. Environment & Tools Set up Git with proper .gitignore Created first feature branch for reservation system Learned IDE shortcuts for multiple cursor selection Concepts Covered Git Workflow Initial repository setup Multi-line commit messages Feature branching strategy IDE integration with Git Modern Java Features Records for immutable data (Reservation) Factory methods for object creation Compact constructors with validation Access level considerations in records Design Patterns & Principles Dependency Injection (constructor injection) Repository pattern continuation Interface design principles Factory method pattern Java Collections Queue interface and LinkedList implementation HashMap for efficient lookups Collection operations (offer vs add) Stream API for validation Implementation Progress Created Reservation record with validation Defined ReservationService interface Started InMemoryReservationService implementation Implemented reservation validation logic Key Takeaways Modern Java features support clean, maintainable code Interface design requires careful consideration of public API Validation should enforce business rules Dependency injection supports loose coupling Next Steps Ready to explore: ...