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Note

C# also provides a mechanism that can be used to resolve name clashes between identically named

namespaces

using the namespace alias qualifier (

::

) and 

global

token. Thankfully, this type of name collision is

rare. If you require more information regarding this topic, look up my article “Working with the C# 2.0 Command

Line Compiler” from 

http://msdn.microsoft.com

.

Creating Nested Namespaces

When organizing your types, you are free to define namespaces within other namespaces. The .NET

base class libraries do so in numerous places to provide an even deeper level of type organization.

For example, the Collections namespace is nested within System, to yield System.Collections. If

you wish to create a root namespace that contains the existing My3DShapes namespace, you can

update your code as follows: