Question

c++ programing.

Objectives

• Further practice with classes
• Use of inheritance
• Use compositions

Define a class called Person with private members name of type string, and money of integer type. The class has the public member functions set(), getMoney(), print(), and a parameterized constructor with default values.

Define a class called Patient with private data members name of type string, durationOfTreatment, and TreatmentCost of type integer. The class has the public member functions set(), getCost(), getDuration(), print(), and a parameterized constructor with default values.

Define a class called Doctor that publicly inherits the class Person and has the private members numberOfPatients,totalCost, list[] (an array of type Patient), and calculateTotalCost(). The class has the public member functions set(), print(), and a parameterized constructor with default values.

Implement all member functions, enforcing the principle of least privileged.

The following driver produces the given sample input / output.

int main()

{

            Doctor Hakeem;

            Hakeem.set("Ali Omar", 3000, 3);

            Hakeem.print();

            return 0;

}

Sample input / output:

Enter the name, duration, and cost of treatment number 1: Allergies 23 150

Enter the name, duration, and cost of treatment number 2: Bronchiectasis 15 280

Enter the name, duration, and cost of treatment number 3: Gallstones 10 50

Ali Omar has 3000 dirham and treated the following patients:

        Allergies was treated for 23 minutes, at a cost 150 dirham per minute

        Bronchiectasis was treated for 15 minutes, at a cost 280 dirham per minute

        Gallstones was treated for 10 minutes, at a cost 50 dirham per minute

The total cost of the 3 patients is 8150 dirham

The overall total of money is 11150 dirham

Answer 1

Please find the answer below.
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main.cpp

#include <iostream>
using namespace std;

class Person{
private:
   string name;
   int money;
public:
   Person(){
       name = "";
       money = 0;
   }
   int getMoney(){
       return money;
   }
   void print(){
       cout<<name<<" has "<<money<<" dirham and treated the following patients\n";
   }

   void set(string n,int m){
       name = n;
       money = m;
   }

};

class Patient {
private:
   string name;
   int durationOfTreatment;
   float treatmentCost;
public:
   Patient(){
       name = "";
       durationOfTreatment = 0;
       treatmentCost = 0;
   }
   void set(){
       cin>>name>>durationOfTreatment>>treatmentCost;
   }

   void setTreatmentCost(float c){
       treatmentCost = c;
   }

   float getCost(){
       return treatmentCost;
   }
   int getDuration(){
       return durationOfTreatment;
   }
   void print(){
       cout<<"Allergies was treated for "<<durationOfTreatment<<" minutes, at a cost "<<treatmentCost<<" dirham per minute"<<endl;
   }
};

class Doctor : public Person {
private:
   int numberOfPatients;
   float totalCost;
   Patient *list;
public:
   Doctor():Person(){
       numberOfPatients = 0;
   }
   void calculateTotalCost(){
       totalCost = 0;
       for(int i=0;i<numberOfPatients;i++){
           totalCost += list[i].getCost()*list[i].getDuration();
       }
   }
   void set(string n,int money,int num){
       numberOfPatients = num;
       list = new Patient[num];
       Person::set(n,money);
       for(int i=0;i<numberOfPatients;i++){
           cout<<"Enter the name, duration, and cost of treatment number "<<i+1<<" : ";
           list[i].set();
       }
   }
   void print(){
       Person::print();

       for(int i=0;i<numberOfPatients;i++){
           list[i].print();
       }
       calculateTotalCost();
       cout<<"The total cost of the "<<numberOfPatients<<" patients is "<<totalCost<<" dirham\n";
       cout<<"The overall total of money is "<<totalCost+getMoney()<<" dirham"<<endl;
   }
};

int main(){

   Doctor Hakeem;

   Hakeem.set("Ali Omar", 3000, 3);

   Hakeem.print();

   return 0;

}