introductory-examples/program-organization/4/client.cs - A client of classes in nested namespaces.

Lecture 4 - slide 19 : 29 Program 9

// In source file client.cs

using N1.N2;
using N1.N3;

public class Client{
  C1 x = new C1(); 
  C2 y = new C2(); 
  C3 z = new C3(); 
}