Declares the name of a namespace.
Namespace name [component types] End Namespace
Namespaces are used as an organizational system - a way of presenting program components that are exposed to other programs and applications.
Namespaces are always Public; therefore the declaration of a namespace cannot includce an access modifiers. However, the components within the namespace may have Public, Friend or Private access. If it is not stated, the default access type is Friend.Note Private members of a namespace are accessible only within the namespace declaration they were declared in.