נושא: מחלקה מסוג singletone

                                                             using System 
namespace DoFactory.GangOfFour.Singleton.Structural
                                                                                  }
                                      // MainApp test application    
                                                            class MainApp  
                                                                                }
    
                                                  () static void Main
                                                                        }
      // Constructor is protected -- cannot use new 
                      ()  Singleton s1 = Singleton.Instance

                    ()&nbs p; Singleton s2 = Singleton.Instance  

                                            (  if (s1 == s2      {
        Console.Writ eLine("Objects are the same instance");
      }

                                                 // Wait for user 
                                                ;()  Console.Read 
                                                                     {
                                                                        {

                                                             // "Singleton"

                                                           class Singleton
                                                                               }
                          private static Singleton instance 
                        // Note: Constructor is 'protected'
                                          ()  protected Singleton 
                                                                         }
                                                                         {

                           () public static Singleton Instance
                                                                             }
                                       // Use 'Lazy initialization'
                                             if (instance == null)
                                                                      }
                         ;()  instance = new Singleton 
                                                                      {

                                                return instance;
                                                               {

                                                                   {
                                                                           {