C# (pronounced C sharp) is a general-purpose high-level programming language supporting multiple paradigms. C# encompasses static typing, strong typing, lexically scoped, imperative, declarative, functional, generic, object-oriented (class-based), and component-oriented programming disciplines.
You can get detailed training on C# concepts https://www.w3schools.com/cs
You can watch a video about it here …
If you want to practice developing your own C# application, go http://replit.com and set up an account. You can develop your code right from your browser!!