Advanced Object-Oriented Programming: Build Scalable, Maintainable, and Robust Code

Are you stuck writing code that works today but becomes a nightmare to maintain tomorrow? Do you understand classes and inheritance but struggle to design systems that stay flexible as requirements change? Advanced Object-Oriented Programming bridges the gap between knowing syntax and mastering software architecture. This book is your roadmap from intermediate developer to software architect. What You Will Master Transform your understanding of object-oriented design from basic concepts to professional-grade architecture. Learn to build systems that are maintainable, scalable, and robust through battle-tested principles and patterns. Inside, you will discover how to apply SOLID principles to create code with high cohesion and low coupling. Master the art of abstraction to manage complexity and define stable contracts. Learn when to use composition over inheritance to build flexible, modular systems. From Foundations to Real-World Architecture Part 1 covers advanced foundations including encapsulation, abstraction, and the SOLID principles that form the bedrock of professional software design. Part 2 explores building modular, maintainable systems through cohesion, coupling, clean code practices, and creational and structural design patterns. Part 3 teaches you behavioral design patterns, refactoring techniques, testing strategies, error handling, and performance optimization. Part 4 scales up to architectural design, dependency management, inversion of control, and domain-driven design fundamentals. Part 5 tackles real-world challenges including working with legacy code, evolving toward scalable systems, and transitioning from senior developer to software architect. Who This Book Is For This book is designed for intermediate to advanced developers with two or more years of experience who want to level up their design skills. You already know the basics but sense there is a deeper layer of principles that separate working code from maintainable, robust systems. What Makes This Different Every chapter builds on the last in a structured curriculum. Concepts are explained with clear examples and practical applications. End-of-chapter exercises help you apply principles to your own projects immediately. Stop writing code that just works. Start engineering software that endures.