The Dominant Programmer

Nov 1, 2022 · Fundamentals

Understanding SOLID Design Principles with Java Code Examples

This article explains the seven SOLID software design principles—Open‑Closed, Dependency Inversion, Single Responsibility, Interface Segregation, Law of Demeter, Liskov Substitution, and Composite/Reuse—illustrating each rule with clear Java code snippets, refactorings, and practical scenarios such as product pricing, purchasing workflows, and database access.