Back to notes -- Keyboard shortcut: 'u'  previous -- Keyboard shortcut: 'p'  next -- Keyboard shortcut: 'n'  Slide program -- Keyboard shortcut: 't'    An equivalent client of classes in different namespaces - no using clauses.Lecture 4 - slide 19 : 29
Program 5
// An equivalent client program. No using clauses.
// In source file client-equiv.cs

  Namespace N1
    public class C1
  Namespace N2
    internal class C2 
    public class C3 
    Namespace N3
      public class C4

// No using clauses - instead fully qualified class names:

public class Client{
  N1.C1 v = new N1.C1(); 

  // The type or namespace name 'C2' could not be found.
  // N2.C2 w = new N2.C2();   
  N2.C3 x = new N2.C3(); 
  N2.N3.C4 y = new N2.N3.C4();