Simplest namespace with class definition : Namespace « Language Basics « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Language Basics
3. Namespace

A namespace is declared using the namespace keyword.

The general form of namespace is shown here:

namespace name {
    // members
    }

using System;

namespace HelloWorld
{
  /// <summary>
  /// Summary description for Class1.
  /// </summary>
  class Class1
  {
    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main(string[] args)
    {
      System.Console.WriteLine( "Hello world from C#" ); 
    }
  }
}

Hello world from C#