Tech-Notes

SOLID- intended to make software designs more understandable, flexible and maintainable

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

Single Responsibility Principle:

• A class should have only one resonsibility. Chunk it, if it has more responsibilities.

Open Closed Principle:

• Software entities is open for extension, but close for modification.

Liskov Substitution Principle:

• child class object can be replaced by parent class object. ie. child should read to handle all functionalities of parent, not just giving empty block or throwing exception like that.

Interface Segregation Principle:

• Instead of using big interface, chunk it and use as small as possible. ie client should not force to implment the dont use.

Dependency Inversion Principle:

• Depend on interfce(abstraction) not on concrete class