Hello friends, I hope you all are doing great. In today's tutorial, we will discuss another important concept named Interface in C#. It's our 18th tutorial in C# series. It's one of my favorite concepts in C# as its come quite handy in complex projects. Interfaces are quite similar to C# Classes & C# Structs in design so if you haven't studied those lectures then do read them first. So, let's get started with the Introduction to Interface in C#: Introduction to Interface in C# Interface in C# is created using Interface Keyword and is used for the declaration of Methods, Properties, Events etc. but we can't add any implementation in it. ( we can't declare Fields in Interface ) You can think of Interface as a signature, you look at the interface and you will know all Methods, Properties etc. ...