The use of namespace hierarchies : Namespace « Language Basics « C# / CSharp Tutorial

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

namespace CompanyName
{
  namespace UserInterface  // nested namespace
  {
    public class MyClass
    {
      public void Test()
      {
        System.Console.WriteLine("UserInterface Test()");
      }
    }
  }
}


namespace CompanyName.DatabaseAccess  // nested namespace using dot
{
  public class MyClass
  {
    public void Test()
    {
      System.Console.WriteLine("DatabaseAccess Test()");
    }
  }
}


class MainClass {

  public static void Main() {
    CompanyName.UserInterface.MyClass myUI = new CompanyName.UserInterface.MyClass();
    CompanyName.DatabaseAccess.MyClass myDB = new CompanyName.DatabaseAccess.MyClass();

    CompanyName.DatabaseAccess.MyClass myMT = new CompanyName.DatabaseAccess.MyClass();

    myUI.Test();
    myDB.Test();
    myMT.Test();
  }
}

UserInterface Test()
DatabaseAccess Test()
DatabaseAccess Test()