C# Interfaces: Why We Use Them & How They Work (Full Guide)

Mastering Interfaces is a crucial step in becoming a proficient C# developer. In this video, we break down everything you need to know about interfaces—starting from the absolute basics to real-world architectural applications. Whether you're confused about the difference between an interface and a class, or you're wondering why we even use them in the first place, this tutorial has you covered. What you’ll learn: What are Interfaces? Understanding the "contract" between classes. Why use Interfaces? The power of decoupling and flexibility. Simple Syntax: A clean, easy-to-follow code example. Interface vs. Inheritance: How they work together to build robust systems. Real-World Example: Calculating areas for Circles and Rectangles using a unified interface.