Have you had experience applying object-oriented programming principles in your projects?

Yes, in projects I applied the main principles of object-oriented programming (OOP):

• Encapsulation — hiding the internal implementation of classes and providing access through methods and properties.
• Inheritance — creating new classes based on existing ones for code reuse.
• Polymorphism — the ability to use objects of different classes through a common interface or base class.
• Abstraction — highlighting common characteristics and behaviors in abstract classes or interfaces.

For example, in one project, I created a class hierarchy for handling different types of notifications, where the base class defined a common interface, and the subclasses implemented specific behaviors.