If you're not familiar with object-oriented programming, some of the concepts can be hard to understand, especially if you're a longtime procedural language programmer. Follow along as we take a look ...

Here's what you need to know about object-oriented programming with classes, methods, objects, and interfaces, with examples in Java, Python, and TypeScript. Object-oriented programming (OOP) is ...

Q: When would you create static methods as opposed to instance methods? I understand that static methods allow you to use those methods without having to create an instance of that class, and that ...

Extension methods provide a great way for extending a class functionality -- but it's interfaces that let you use those methods anywhere you want. Extension methods let you add functionality to an ...

Extensible applications allow you to add functionality without rewriting your application: you dynamically select the classes that make up your application at runtime rather than design time. I once ...