Qunar Tech Salon

Mar 7, 2015 · Fundamentals

Object‑Oriented Design Principles and SOLID for Java Developers

This article introduces Java developers to essential object‑oriented design principles—including DRY, encapsulation, Open/Closed, SRP, DIP, composition over inheritance, LSP, and Interface Segregation—explaining their benefits, proper usage, and common pitfalls to help write high‑cohesion, low‑coupling code.