Solid Link to heading

Single Responsibility Principle Link to heading

• A class should have only one reason to change.

Open/Closed Principle Link to heading

• Software entities should be open for extension but closed for modification.

Liskov Substitution Principle Link to heading

• Derived classes must be substitutable for their base classes.

Interface Segregation Principle Link to heading

• A class should not be forced to implement interfaces it does not use.
• Avoid creating large, monolithic interfaces. Instead, create smaller. more focused interfaces

Dependency Inversion Principle Link to heading

• Depend on abstractions, not on concretions.

Solid are principles and they are important because: Link to heading

• Maintainability: simplifies modifying and extending the codebase.
• Scalability: promotes reusable and modular components.
• Testability: makes unit testing easier by reducing tightly coupled dependencies.
• Readability: code becomes more structured and understandable.