list2107.cpp

teach yourself C++ in 21 days 第五版

#include <iostream>
using namespace std;
#include <string.h>

enum STATUS { FullTime, PartTime } ;
enum GRADLEVEL { UnderGrad, Grad } ;
enum HOUSING { Dorm, OffCampus };
enum FOODPLAN { OneMeal, AllMeals, WeekEnds, NoMeals };

class student
{
  public:
    student():
       myStatus(FullTime),
       myGradLevel(UnderGrad),
       myHousing(Dorm),
       myFoodPlan(NoMeals)
    {}
    ~student(){}
    STATUS GetStatus();
    void SetStatus(STATUS);
    unsigned GetPlan() { return myFoodPlan; }

  private:
    unsigned myStatus : 1;
    unsigned myGradLevel: 1;
    unsigned myHousing : 1;
    unsigned myFoodPlan : 2;
};

STATUS student::GetStatus()
{
   if (myStatus)
      return FullTime;
   else
      return PartTime;
}

void student::SetStatus(STATUS theStatus)
{
   myStatus = theStatus;
}

int main()
{
   student Jim;

   if (Jim.GetStatus()== PartTime)
      cout << "Jim is part-time" << endl;
   else
      cout << "Jim is full-time" << endl;

   Jim.SetStatus(PartTime);

   if (Jim.GetStatus())
      cout << "Jim is part-time" << endl;
   else
      cout << "Jim is full-time" << endl;

   cout << "Jim is on the " ;

   char Plan[80];
   switch (Jim.GetPlan())
   {
     case OneMeal: strcpy(Plan,"One meal"); break;
     case AllMeals: strcpy(Plan,"All meals"); break;
     case WeekEnds: strcpy(Plan,"Weekend meals"); break;
     case NoMeals: strcpy(Plan,"No Meals");break;
     default :    cout << "Something bad went wrong! "<< endl; 
                  break;
   }
   cout << Plan << " food plan." << endl;
   return 0;
}