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Singleton class

A class whose number of instance that can be instantiated is limited to one is called a Singleton class.that means at any given time only one instance exist.
Class Singleton
{
      private:
             static bool bFlag;
             static Singleton *Single;   
             Singleton()
              {
              }
     public:
           static Singleton * getInstance();
           void method();
            ~Singelton()
               {
                     bflag=false;
                 }


};
bool Singleton: :
Singleton Singleton: :

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