Define namespace?
What are the namespaces in C#.NET?
Namespace is a logical grouping of classes. The namespace is a container which will be used to organize the hierarchal set of .Net classes.
Namespace is designed for providing a way to keep one set of class names separate from another. The class names declared in one namespace does not conflict with the same class names declared in another.
Example:
Using System;
Using System.Collection.Generic;
Using System.Windows.Forms;
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