Namespaces are additive. : Namespace « Language Basics « C# / CSharp Tutorial

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

using System; 
 

using Counter; 
 

namespace Counter { 
  class MyClass { 
  } 
} 
 
namespace Counter { 
  class MySecondClass { 
  } 
} 
 
class MainClass { 
  public static void Main() { 
    MyClass m = new MyClass(); 
    MySecondClass cu = new MySecondClass(); 
  } 
}