// Fig 3.5 from D & D                                                          // Scott Emrich                                                                // More bells and whistles for our in-class example   

#include <iostream>

using std::cout;            // no change
using std::cin;
using std::endl;

#include <string>
using std::string;
using std::getline;

class GradeBook
{
public:

  // modify the class variable courseName.  
  // This type of function is also called a "mutator"
  void setCourseName (string name) {

    courseName = name;

  }

  // return the class variable courseName.
  // This type of function is also called a "accessor"
  string getCourseName () {

    return (courseName);

  }

  // output the message as before with this member function
  void displayMessage() {

    // NOTE:  although this can "see" the variable, it is good practice to
    //        use the accessor function internally for proper encapsulation

    cout << "Welcome to the grade book for:\n" << getCourseName() << endl;

  }

private:   // define private variables just for this class. 
           // although this is the default, it is good practice to set these
           // and public functions in two sections 

  string courseName;   // "hide" this from the main function and other classes

};

int main () {

  string CourseName;
  GradeBook myGradeBook;

  // read in course name from the user
  cout << "Please enter the course name: " << endl;
  getline (cin, CourseName);
  cout << endl;
  
  // set the course name using the "accessor" function
  myGradeBook.setCourseName (CourseName);
  
  // display the message
  myGradeBook.displayMessage();

  return (0);

}