Introduction to C#

C# (pronounced "C sharp") is a statically-typed, class-based language built for the .NET platform, used for everything from web backends to desktop apps to Unity games, the same broad reach Java has, built by a different company with its own ecosystem.

Example: a minimal C# program

using System;

class Program {
    static void Main() {
        Console.WriteLine("Hello, world!");
    }
}

Hello, world!

Notice the structural similarity to Java: a class wrapping a Main method, Console.WriteLine playing the same role as Java's System.out.println. If you've already read the Java tutorial, C#'s syntax should feel immediately recognizable, both languages share deep roots in the same C-family tradition.