#include <iostream>

 #include <string>

 using namespace std;

 class STProduct

 {

 public:

         void setA(string str)

         {

                 m_a = str;

         }

         void setB(string str)

         {

                 m_b = str;

         }

         void setC(string str)

         {

                 m_c = str;

         }

         void Show()

         {

                 cout<< "Product: "<< m_a<< "!\t"<< m_b<< "!\t"<< m_c<< endl;

         }

 private:

         string m_a;

         string m_b;

         string m_c;

 };

 class STBuilder

 {

 public:

         STBuilder()

         {

                 m_pstProduct = new STProduct();

         }

         virtual ~STBuilder()

         {

                 delete m_pstProduct;

         }

         virtual void BuildPartA() = ;

         virtual void BuildPartB() = ;

         virtual void BuildPartC() = ;

         virtual STProduct* GetResult()

         {

                 return m_pstProduct;

         }

         STProduct* m_pstProduct;

 };

 class STConcreteBuilder: public STBuilder

 {

 public:

         virtual void BuildPartA()

         {

                 m_pstProduct->setA("A Style");

         }

         virtual void BuildPartB()

         {

                 m_pstProduct->setB("B Style");

         }

         virtual void BuildPartC()

         {

                 m_pstProduct->setC("C Style");

         }

 };

 class STDirector

 {

 public:

         ~STDirector()

         {

                 delete m_pstBuilder;

         }

         void SetBuilder(STBuilder* pstTmpBuilder)

         {

                 m_pstBuilder = pstTmpBuilder;

         }

         STProduct* Construct()

         {

                 m_pstBuilder->BuildPartA();

                 m_pstBuilder->BuildPartB();

                 m_pstBuilder->BuildPartC();

                 return m_pstBuilder->GetResult();

         }

         STBuilder* m_pstBuilder;

 };

 int main(int argc, char* argv[])

 {

         STBuilder* pstBuilder = new STConcreteBuilder();

         STDirector* pstDirector = new STDirector();

         pstDirector->SetBuilder(pstBuilder);

         STProduct* pstProduct = pstDirector->Construct();

         cout<< "Show.................."<< endl;

         pstProduct->Show();

         return ;

 }

 //////////////////////////////////////

 [root@ ~/learn_code/design_pattern/10_builder]$ ./builder

 Show..................

 Product: A Style!       B Style!        C Style