某软件公司现欲开发一款飞机飞行模拟系统，该系统主要模拟不同种类飞机的飞行特征与起飞特征。需要模拟的飞机种类及其特征如表5-1所示。
#include <iostream>
#include <string>
using namespace std; class FlyBehavior
{
public:
virtual void fly31()=;
};
class SubSonicFly:public FlyBehavior
{
public:
void fly31()
{cout<<"亚音速飞行"<<endl;}
};
class SuperSonicFly:public FlyBehavior
{
public:
void fly31()
{cout<<"超音速飞行"<<endl;}
}; class TakeOffBehavior
{
public:
virtual void takeoff31()=;
};
class VerticalTakeOff:public TakeOffBehavior
{
public:
void takeoff31()
{cout<<"垂直起飞"<<endl;}
};
class LongDistanceTakeOff:public TakeOffBehavior
{
public:
void takeoff31()
{cout<<"长距离起飞"<<endl;}
}; class AirCraft
{
protected:
FlyBehavior *flyBehavior;
TakeOffBehavior *takeOffBehavior;
public:
void fly31()
{flyBehavior->fly31();}
void takeoff31()
{takeOffBehavior->takeoff31();}
};
class Helicopter:public AirCraft
{
public:
Helicopter()
{
flyBehavior=new SubSonicFly();
takeOffBehavior=new VerticalTakeOff();
}
~Helicopter()
{
if(!flyBehavior)
delete flyBehavior;
if(!takeOffBehavior)
delete takeOffBehavior;
}
}; int main()
{
Helicopter *x=new Helicopter();
x->fly31();
x->takeoff31();
return ;
}
运行结果：
ｊａｖａ 代码实现：
interface FlyBehavior
{
public void fly31();
}
class SubSonicFly implements FlyBehavior
{
public void fly31()
{System.out.println("亚音速飞行");}
}
class SuperSonicFly implements FlyBehavior
{
public void fly31()
{System.out.println("超音速飞行");}
} interface TakeOffBehavior
{
public void takeoff31();
}
class VerticalTakeOff implements TakeOffBehavior
{
public void takeoff31()
{System.out.println("垂直起飞");}
}
class LongDistanceTakeOff implements TakeOffBehavior
{
public void takeoff31()
{System.out.println("长距离起飞");}
} class AirCraft
{
protected FlyBehavior flyBehavior;
protected TakeOffBehavior takeOffBehavior;
public void fly31()
{flyBehavior.fly31();}
public void takeoff31()
{takeOffBehavior.takeoff31();}
}
class Helicopter extends AirCraft
{
public Helicopter()
{
flyBehavior=new SubSonicFly();
takeOffBehavior=new VerticalTakeOff();
}
} public class dev
{
public static void main(String [] args)
{
Helicopter x=new Helicopter();
x.fly31();
x.takeoff31();
}
}