What is a namespace

Answer 1

https://www.sololearn.com/discuss/428104/?ref=app

Answer 2

https://msdn.microsoft.com/en-us/library/5cb46ksf.aspx

Answer 3

NameSpace is the Logical group of types or we can say namespace is a container (e.g Class, Structures, Interfaces, Enumerations, Delegates etc.), example System.IO logically groups input output related features , System.Data.SqlClient is the logical group of ado.net Connectivity with Sql server related features.

Answer 4

// Namespace Declaration
using System;

// The Namespaces
namespace MyNameSpace 
{
    namespace Video
    {
        // Program start class
        class MyVideo
        {
            //Functionality

           public static void play()

           {
              //.. 
           }

        }
    }

    namespace Audio
    {
        // Program start class
        class MyAudio 
        {
            //Functionality
           public static void play() 

           {
               //.. 

           }

        }
    }
}