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factorymethod.cpp
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factorymethod.cpp
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#include <iostream>
using namespace std;
class Cuttable{
public:
virtual ~Cuttable(){}
};
class Potato: public Cuttable{};
class Wood: public Cuttable{};
class CutPrint {
protected:
virtual void draw(Cuttable) = 0;
virtual void cut(Cuttable) = 0;
virtual void print(Cuttable) = 0;
Cuttable* createCuttable(){
return new Wood();
}
public:
virtual ~CutPrint(){}
void createCutPrint(){
Cuttable* hanzai = createCuttable();
draw(*hanzai);
cut(*hanzai);
print(*hanzai);
}
};
class ImagawaCutPrint : public CutPrint{
protected:
void draw(Cuttable){
cout << "マンガの絵を描く"
<< endl;
}
void cut(Cuttable){
cout << "彫刻刀を利用して器用に掘る"
<< endl;
}
void print(Cuttable){
cout << "インクとして、自分の血を使いプリントする"
<< endl;
}
Cuttable* createCuttable(){
return new Potato();
}
};
int main(int, char const*[])
{
CutPrint* imagawa = new ImagawaCutPrint();
imagawa->createCutPrint();
return 0;
}