How to call the following functions in main. (C++) //GradeBook.h // gradebook. h

Question

How to call the following functions in main. (C++)

//GradeBook.h

// gradebook. h file

// GradeBook class definition. This file presents GradeBook's public
// interface without revealing the implementations of GradeBook's member
// functions, which are defined in GradeBook.cpp.
#include <string> // class GradeBook uses C++ standard string class

// GradeBook class definition
class GradeBook
{
public:
GradeBook();
explicit GradeBook( std::string,std::string); // constructor initialize courseName
void setCourseName( std::string ); // sets the course name
std::string getCourseName() const; // gets the course name
void displayMessage() const; // displays a welcome message
void setInstructorName(std::string); // set instructor name
std::string getInstructorName() const; //get instructor name

private:
std::string courseName; // course name for this GradeBook
std::string instructorName;
}; // end class GradeBook

//GradeBook.cpp

// GradeBook member-function definitions. This file contains
// implementations of the member functions prototyped in GradeBook.h.
#include <iostream>
#include "GradeBook.h" // include definition of class GradeBook
using namespace std;

// constructor initializes courseName with string supplied as argument
GradeBook::GradeBook(){ }
GradeBook::GradeBook( string name,string name1 )
: courseName( name ),instructorName(name1) // member initializer to initialize courseName
{
// empty body
} // end GradeBook constructor

// function to set the course name
void GradeBook::setCourseName( string name )
{
courseName = name; // store the course name in the object
} // end function setCourseName

// function to get the course name
string GradeBook::getCourseName() const
{
return courseName; // return object's courseName
} // end function getCourseName

// display a welcome message to the GradeBook user
void GradeBook::displayMessage() const
{
// call getCourseName to get the courseName
cout << "Welcome to the grade book for " << getCourseName()<< "!" << endl;
cout << "This course is presented by " << getInstructorName()<< endl;
} // end function displayMessage
void GradeBook::setInstructorName(string name) // set instructor name
{
instructorName=name;
}
string GradeBook::getInstructorName() const
{
return instructorName;
}

Explanation / Answer

#include #include #include "Grade.h" using namespace std; int main() { GradeBook book = GradeBook("course 1", "instructor 1"); cout

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