Write a Program in C++ That Define Class GradeBook With a Member Function DisplayMessage and Create a GradeBook Object and Call its DisplayMessage Function

// Define class GradeBook with a member function displayMessage;

// Create a GradeBook object and call its displayMessage function.

#include <iostream>

using namespace std;

// GradeBook class definition

class GradeBook

{

public:

   // function that displays a welcome message to the GradeBook user

   void displayMessage() const

   {

      cout << "Welcome to the Grade Book!" << endl;

   } // end function displayMessage

}; // end class GradeBook  

// function main begins program execution

int main()

{

   GradeBook myGradeBook; // create a GradeBook object named myGradeBook

   myGradeBook.displayMessage(); // call object's displayMessage function

} // end main