lec2.1.1

public class GradeBook {
    private String courseName;
    private String instructorName;

    public void setCourseName( String name )
    {
        courseName = name;
    }
    public String getCourseName()
    {
        return courseName;
    }
    public void displayMessage()
    {
        System.out.printf("Welcome to the grade book for %s !\n", getCourseName());
    }

    public void setInstructorName(String instName)
    {
        instructorName = instName;
    }
    public String getInstructorName()
    {
        return instructorName;
    }
}