AirlineTicket

下面的代码定义了一个基本的机票类。这个类可以根据飞行的里程数以及顾客是否是“精英超级奖励计划”的成员计算票价。

AirlineTicket.h

// AirlineTicket.h#include <string>class AirlineTicket
{public:AirlineTicket();~AirlineTicket();int     calculatePriceInDollars() const;std::string  getPassengerName() const;void         setPassengerName(std::string inName);int          getNumberOfMiles() const;void         setNumberOfMiles(int inMiles);bool         getHasEliteSuperRewardsStatus() const;void         setHasEliteSuperRewardsStatus(bool inStatus);protected:std::string  mPassengerName;int          mNumberOfMiles;bool         bHasEliteSuperRewardsStatus;
};

AirlineTicket.cpp

// AirlineTicket.cpp#include <iostream>
#include "AirlineTicket.h"using namespace std;AirlineTicket::AirlineTicket()
{// initialize data membersbHasEliteSuperRewardsStatus = false; mPassengerName = "Unknown Passenger";mNumberOfMiles = 0;
}AirlineTicket::~AirlineTicket()
{// nothing much to do in terms of cleanup
}int AirlineTicket::calculatePriceInDollars() const
{if (getHasEliteSuperRewardsStatus()) {// Elite Super Rewards customers fly for free!return 0;}// The cost of the ticket is the number of miles times// 0.1. Real airlines probably have a more complicated formula!return static_cast<int>((getNumberOfMiles() * 0.1));
}string AirlineTicket::getPassengerName() const
{return mPassengerName;
}void AirlineTicket::setPassengerName(string inName)
{mPassengerName = inName;
}int AirlineTicket::getNumberOfMiles() const
{return mNumberOfMiles;
}void AirlineTicket::setNumberOfMiles(int inMiles)
{mNumberOfMiles = inMiles;
}bool AirlineTicket::getHasEliteSuperRewardsStatus() const
{return bHasEliteSuperRewardsStatus;
}void AirlineTicket::setHasEliteSuperRewardsStatus(bool inStatus)
{bHasEliteSuperRewardsStatus = inStatus;
}

AirlineTicketTest.cpp

// AirlineTicketTest.cpp#include <iostream>
#include <memory>
#include "AirlineTicket.h"using namespace std;int main()
{AirlineTicket myTicket;  // stack-based AirlineTicketmyTicket.setPassengerName("Gavin Y. Liu");myTicket.setNumberOfMiles(700);int cost = myTicket.calculatePriceInDollars();cout << "This ticket will cost $" << cost << endl;// heap-based AirlineTicket with smart pointershared_ptr<AirlineTicket> myTicket2(new AirlineTicket());myTicket2->setPassengerName("Laud M. Hallidue");myTicket2->setNumberOfMiles(2000);myTicket2->setHasEliteSuperRewardsStatus(true);int cost2 = myTicket2->calculatePriceInDollars();cout << "This other ticket will cost $" << cost2 << endl;// No need to delete myTicket2, happens automatically// heap-based AirlineTicket without smart pointerAirlineTicket* myTicket3 = new AirlineTicket();// ... Use ticket 3delete myTicket3;  // delete the heap objectreturn 0;
}

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