Dev.to
7/19/2026

The original title is "SOLID and OOP: Designing Software That Survives Change"
Original: SOLID and OOP: Designing Software That Survives Change
Short summary
A tutorial covering the five SOLID design principles—Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion—popularized by Robert C. Martin. It explains why OOP alone doesn't guarantee good design and walks through code examples showing common anti-patterns like God Classes and tight coupling, along with corrected implementations using interfaces and composition.
- •Covers all five SOLID principles with code examples
- •Explains why OOP alone leads to God Classes and tight coupling
- •Includes guidance on composition over inheritance and when not to apply SOLID
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