SOLID & Design Patterns Interview Question #1
What is SOLID in object-oriented design?
SOLID Principles, Design Fundamentals, Repository, Factory, Strategy & Decorator Junior Beginner
Quick Interview Answer
SOLID is an acronym for five object-oriented design principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion. They provide guidelines for designing code that is easier to understand, change, test, and extend.
Detailed Explanation
SOLID is an acronym for five object-oriented design principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion. They provide guidelines for designing code that is easier to understand, change, test, and extend.
SOLID is not a rigid rulebook. The principles are most useful when they reduce coupling and clarify responsibilities without adding unnecessary abstraction.
Code Example
S - Single Responsibility Principle
O - Open/Closed Principle
L - Liskov Substitution Principle
I - Interface Segregation Principle
D - Dependency Inversion Principle