The SOLID design principles

What are they?

1. SRP: The Single Responsibility Principle
2. OCP: The Open-Closed Principle
3. LSP: The Liskov Substitution Principle
4. ISP: The Interface Segregation Principle
5. DIP: The Dependency Inversion Principle

KNOWLEDGE GAP - LEARNMORE

Single Responsibility Principle

https://stackify.com/solid-design-principles/

Open Closed Principle

https://stackify.com/solid-design-open-closed-principle/

Liskov Substitution Principle

https://stackify.com/solid-design-liskov-substitution-principle/

The principle defines that objects of a superclass shall be replaceable with objects of its subclasses without breaking the application. That requires the objects of your subclasses to behave in the same way as the objects of your superclass. You can achieve that by following a few rules, which are pretty similar to the design by contract concept defined by Bertrand Meyer.

https://en.wikipedia.org/wiki/Circle%E2%80%93ellipse_problem is a violation of Liskov Substitution Principle

Interface Segregation Principle

https://stackify.com/interface-segregation-principle/

Clients should not be forced to depend upon interfaces that they do not use.

Dependency Inversion Principle

https://stackify.com/dependency-inversion-principle/

https://springframework.guru/solid-principles-object-oriented-programming/ https://www.geeksforgeeks.org/solid-principle-in-programming-understand-with-real-life-examples/?ref=leftbar-rightbar