public class MainClass
{
public static void main( String args[] )
{
GradeBook myGradeBook = new GradeBook();
System.out.printf( "Initial course name is: %s\n\n",myGradeBook.getCourseName() );
String theName = "Java";
myGradeBook.setCourseName( theName ); // set the course name
myGradeBook.displayMessage();
}
}
class GradeBook
{
private String courseName; // course name for this GradeBook
// method to set the course name
public void setCourseName( String name )
{
courseName = name; // store the course name
}
// method to retrieve the course name
public String getCourseName()
{
return courseName;
}
// display a welcome message to the GradeBook user
public void displayMessage()
{
System.out.printf( "Welcome to the grade book for\n%s!\n",
getCourseName() );
}
}
Initial course name is: null
Welcome to the grade book for
Java!