Rather than teaching Java through isolated code snippets or theoretical concepts, this book takes you through the complete process of building a full-stack hotel booking backend system using Spring Boot, MySQL, REST APIs, JWT security, and more.
You’ll walk step-by-step through real-world challenges:
Designing a relational database and mapping JPA entities
Building modular, layered architecture (Controller–Service–Repository)
Securing APIs with Spring Security and JWT authentication
Implementing real booking logic with date conflict validation
Adding admin tools, availability search, and user dashboards
Testing with Postman and preparing for deployment
This book is project-based, hands-on, and grounded in the real development experience—not just "toy examples." It's perfect for:
Students building a strong Java portfolio
Self-taught developers transitioning to backend engineering
Instructors looking for practical curriculum
Teams building MVPs or prototypes
With clear explanations, full source code, and best practices, Real-World Java equips you not just to understand backend systems—but to build, secure, and scale them with confidence.
Build with purpose. Code like it matters