OOP & SOLID Mastery

Hide complexity and expose only essential interfaces to simplify how we interact with objects

Protect internal state and enforce access through controlled interfaces

Create new classes based on existing ones to promote code reuse and establish hierarchies

Allow objects to take multiple forms, enabling flexible and extensible code

Understanding when to use interfaces versus abstract classes in your design

Overview of the five principles for maintainable, scalable object-oriented design

A class should have one, and only one, reason to change

Software entities should be open for extension but closed for modification

Objects of a superclass should be replaceable with objects of its subclasses without affecting program correctness

Clients should not be forced to depend on interfaces they do not use

High-level modules should not depend on low-level modules; both should depend on abstractions