#include <iostream>
 #include <string> // class GradeBook uses C++ standard string class
 using namespace std;
 
// GradeBook class definition
class GradeBook
{
  public:
    GradeBook( string name )
    {
       setCourseName( name ); 
    } 
    void setCourseName( string name )
    {
       courseName = name; 
    } 
    string getCourseName()
    {
       return courseName; 
    } 
    void displayMessage()
    {
       cout << "Welcome to the grade book for\n" << getCourseName()
       << "!" << endl;
    } 
  private:
   string courseName; 
};