Why OOP Matters

Object-Oriented Programming (OOP) lets us organise code around the things we talk about-orders, learners, dashboards-making large codebases easier to reason about.

Pillars to Remember

• Encapsulation groups data with the code that uses it.
• Inheritance lets specialised objects reuse behaviour from base classes.
• Polymorphism allows different objects to respond to the same message.
• Abstraction hides messy implementation details behind clear public APIs.

When to Reach for OOP

Anytime you need to model entities with state and behaviour that evolve over time.

Understand how OOP models real-world systems with objects that bundle data and behavior.