C # (C Sharp) basics

• Like C, C++, C# is case-sensitive. 
• Semi colon (;) is the statement separator. 
• All code (class declaration and implementation) is placed in one file with extension cs.
• Have a look at this Hello world program in C#.

• using System;
  namespace MyNameSpace
  {
  
  class HelloWorld
  
  {
      static void Main(string[] args)
      {
          Console.WriteLine ("Hello World");
       }
  }
  
  }
  

  
  
• Everything in C# is packed into a class and classes in C# are packed into namespaces (just like files in a folder). 
• C#'s main function starts with name Main.
• No need to put a semi colon after a class block or struct definition.