fig3.3

#include<iostream>#include<string>using namespace std;class GradeBook{public:void displayMessage(string courseName) const{cout << "Welcome to the book for\n" << courseName << "!"<< endl;}};int main(){string nameOfcourse;GradeBook myGradeBook;cout << "Please enter the course name:" << endl;getline(cin, nameOfcourse);cout << endl;myGradeBook.displayMessage(nameOfcourse);system("pause");return 0;}