What is your experience with applying object-oriented programming concepts in practice?

Object-oriented programming (OOP) in practice helps structure code, making it more maintainable and extensible. The main OOP concepts I apply are:

• Encapsulation: hiding internal implementation details of classes, providing only necessary methods. For example, in Android, I create classes with private fields and public getters/setters.

• Inheritance: creating base classes or interfaces for common functions and extending them in derived classes. For example, a base Activity class with common methods for all screens.

• Polymorphism: using interfaces and abstract classes so objects of different types can be used through a common interface. For example, event handlers through interfaces.

• Abstraction: highlighting common features and hiding details to simplify interaction with objects.

Example: creating a repository interface for data access, which can be implemented in different ways (locally, via network) without changing the code that uses it.