What does this code output?

   1:  namespace GenericsExample
   2:  {
   3:      using System;
   4:      using System.Collections.Generic;
   5:      using System.Text;
   6:   
   7:      class Implementor : IGenericInterface<int, string>, 
                               INonGenericInterface { }
   8:   
   9:      interface IGenericInterface { }
  10:   
  11:      interface INonGenericInterface { }
  12:   
  13:      class Program
  14:      {
  15:          static void Main (string[] args)
  16:          {
  17:              Type[] interfaces = typeof(Implementor).GetInterfaces();
  18:   
  19:              if (interfaces != null)
  20:              {
  21:                  foreach (Type iface in interfaces)
  22:                  {
  23:                      Console.WriteLine("Interface type '{0}'", iface.Name);
  24:   
  25:                      if (iface.IsGenericType)
  26:                      {
  27:                          Type[] genericParams = iface.GetGenericArguments();
  28:   
  29:                          foreach (Type genParam in genericParams)
  30:                          {
  31:                              Console.WriteLine("Generic parameter type '{0}'",
                                                      genParam.Name);
  32:   
  33:                              if (genParam == typeof(Int32))
  34:                              {
  35:                                  Console.WriteLine("\tFound an interger!");
  36:                              }
  37:                          }
  38:                      }
  39:                  }
  40:              }
  41:   
  42:              Console.WriteLine();
  43:              Console.WriteLine("Press  to exit.");
  44:              Console.ReadLine();
  45:          }
  46:      }
  47:  }
 

I will post an "nice to know" tomorrow…