Question

COSC 1437 C++2 Project Assignment 3 Description: Computer Science Department is evaluating its professors to see which professor has the highest rating according to student input. You will create a ProfessorRating class consisting of professor Name and three ratings. The three ratings are used to evaluate easiness, helpfulness, and clarity. The value for each rating is in the range of 1 to 5, with 1 being the lowest and 5 being the highest. Your program should contain the following functionalities: a. Create a class named ProfessorRating with 4 data members: profName with string type and easiness, helpfulness, and clarity with int type b. Your class should contain the following methods: a. default constructor which initializes the private data members b. initialization constructor which passes four parameters and sets the value for each data member c. a copy constructor: ProfessorRating(const ProfessorRating &profRating) d. a destructor e. a getter (accessor) method for each data member. f. double calcRating() const – returns the average rating ((easiness+helpfulness+clarity)/3.0) g. void print() const– displays the professor name and his/her three ratings and the average rating. h. void setData(string name, int easy, int help, int clari) – assigns parameter values to each private data member. i. An overloaded operator function (==) bool operator == (const ProfessorRating &) – Checks if two professors have the same ratings for easiness, helpfulness and clarity. c. Create your class in a header file (ProfessorRating.h) with the above structures. Create an implementation file (ProfessorRating.cpp) to implement all the methods in your class. Test your class with user interface in your main program. (** make sure to include your class header file in your main program) #include “ProfessorRating.h” d. In your main program, create an array of ProfessorRating which holds a list of 3 professor ratings. You can make your own test data (professor info). const int SIZE=3; ProfessorRating csProfs[SIZE]; e. Create a function to fill the array with professor names and each rating. void fillProfList(ProfessorRating profList[]) f. Create a generic function to get each rating int getRating(string ratingType), where ratingType is passed into the function to indicate either “Easiness”, “Helpfulness”, or “Clarity” that you like to prompt to the user so they can enter proper rating. You will call this function 3 times to get each rating. You need to validate the rating to make sure it is between 1 and 5. g. Create a function to locate the professor with the highest average rating and display the name and rating. void displayHighestRating(ProfessorRating profList[]) h. Display the output for all professors’ names, ratings and average ratings. Display the professor with the highest average rating. You can design your own output. Format your output with two decimal places. Submit header file (.h file), implementation file (.cpp), test source file (main program), and output screenshot on Canvas for grading.

Answer 1

// ProfessorRating.h

#ifndef PROFESSORRATING_H_

#define PROFESSORRATING_H_

#include <iostream>

using namespace std;

class ProfessorRating

{

private:

       string name;

       int easiness,helpfulness,clarity ;

public:

       ProfessorRating();

       ProfessorRating(string,int,int,int);

       ProfessorRating(const ProfessorRating &rating);

       ~ProfessorRating();

       string getName() const;

       int getEasiness() const;

       int getHelpfulness() const;

       int getClarity() const;

       double calcRating() const;

       void print() const;

       void setData(string,int,int,int);

       bool operator==(const ProfessorRating &rating) const;

};

#endif /* PROFESSORRATING_H_ */

//end of ProfessorRating.h

// ProfessorRating.cpp

#include "ProfessorRating.h"

#include <iomanip>

ProfessorRating::ProfessorRating() : name(""), easiness(0), helpfulness(0), clarity(0)

{}

ProfessorRating::ProfessorRating(string name, int easiness, int helpfulness, int clarity) : name(name), easiness(easiness),helpfulness(helpfulness),clarity(clarity)

{}

ProfessorRating::ProfessorRating(const ProfessorRating &rating) : name(rating.name), easiness(rating.easiness), helpfulness(rating.helpfulness), clarity(rating.clarity)

{}

ProfessorRating::~ProfessorRating()

{}

string ProfessorRating::getName() const

{

       return name;

}

int ProfessorRating::getEasiness() const

{

       return easiness;

}

int ProfessorRating::getHelpfulness() const

{

       return helpfulness;

}

int ProfessorRating::getClarity() const

{

       return clarity;

}

double ProfessorRating::calcRating() const

{

       return(((double)(easiness+helpfulness+clarity))/3.0);

}

void ProfessorRating::setData(string name, int easiness, int helpfulness, int clarity)

{

       this->name = name;

       this->easiness = easiness;

       this->helpfulness = helpfulness;

       this->clarity = clarity;

}

void ProfessorRating::print() const

{

       cout<<"Name : "<<name<<endl;

       cout<<"Easiness : "<<easiness<<endl;

       cout<<"Helpfulness : "<<helpfulness<<endl;

       cout<<"Clarity : "<<clarity<<endl;

       cout<<"Average Rating : "<<fixed<<setprecision(2)<<calcRating()<<endl<<endl;

}

bool ProfessorRating::operator ==(const ProfessorRating &rating) const

{

       return((easiness == rating.easiness ) && (helpfulness == rating.helpfulness) && (clarity == rating.clarity));

}

//end of ProfessorRating.cpp

// main.cpp : C++ program to test the ProfessorRating class

#include <iostream>

#include "ProfessorRating.h"

#include <limits>

#include <iomanip>

using namespace std;

void fillProfList(ProfessorRating profList[], int size);

int getRating(string ratingType);

void displayHighestRating(ProfessorRating profList[], int size);

int main()

{

       const int SIZE = 3;

       ProfessorRating csProfs[SIZE];

       fillProfList(csProfs,SIZE);

       cout<<"\nDetails of professors : "<<endl;

       for(int i=0;i<SIZE;i++)

             csProfs[i].print();

       displayHighestRating(csProfs,SIZE);

       return 0;

}

void fillProfList(ProfessorRating profList[], int size)

{

       string name;

       int easiness, helpfulness, clarity;

       for(int i=0;i<size;i++)

       {

             cout<<"\nEnter the details for professor "<<(i+1)<<" : "<<endl;

             cout<<"Name : ";

             getline(cin,name);

             easiness = getRating("Easiness");

             helpfulness = getRating("Helpfulness");

             clarity = getRating("Clarity");

             profList[i].setData(name,easiness,helpfulness,clarity);

             std::cin.ignore(std::numeric_limits<std::streamsize>::max(),'\n'); //cin leaves \n in the input so remove it

       }

}

int getRating(string ratingType)

{

       int rating;

       cout<<ratingType<<" rating : ";

       cin>>rating;

       while(cin.fail() || rating < 1 || rating > 5)

       {

             std::cin.clear(); // back in 'normal' operation mode

             std::cin.ignore(std::numeric_limits<std::streamsize>::max(),'\n'); // and remove the bad input

             cout<<"Invalid rating. Rating should be between 1 and 5 (inclusive)"<<endl;

             cout<<ratingType<<" rating : ";

             cin>>rating;

       }

       return rating;

}

void displayHighestRating(ProfessorRating profList[], int size)

{

       int max = 0;

       for(int i=1;i<size;i++)

       {

             if(profList[i].calcRating() > profList[max].calcRating())

                    max = i;

       }

       cout<<"Professor with highest rating : "<<endl;

       cout<<"Name : "<<profList[max].getName()<<endl<<"Average Rating : "<<fixed<<setprecision(2)<<profList[max].calcRating()<<endl;

}

//end of main.cpp

Output: