How can I refactor my code to follow SOLID principles?

How can I refactor my code to follow SOLID principles?

To refactor your code to follow SOLID principles, start by understanding each principle: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion.

Can you give me an example of the Single Responsibility Principle?

Sure! If you have a class that handles both user authentication and user data storage, you should split it into two classes: one for authentication and another for data storage.

What about the Open/Closed Principle?

The Open/Closed Principle states that software entities should be open for extension but closed for modification. You can achieve this by using interfaces or abstract classes.

How do I implement Dependency Inversion in my project?

To implement Dependency Inversion, depend on abstractions rather than concrete implementations. Use dependency injection to provide the necessary dependencies.