Grade Book 4 - Java Sample Program

// GradeBook.java
// GradeBook class with a constructor to initialize the course name.

public class GradeBook
{
   private String courseName; // course name for this GradeBook

   // constructor initializes courseName with String argument
   public GradeBook( String name ) // constructor name is class name
   {
      courseName = name; // initializes courseName
   } // end constructor

   // method to set the course name
   public void setCourseName( String name )
   {
      courseName = name; // store the course name
   } // end method setCourseName

   // method to retrieve the course name
   public String getCourseName()
   {
      return courseName;
   } // end method getCourseName

   // display a welcome message to the GradeBook user
   public void displayMessage()
   {
      // this statement calls getCourseName to get the 
      // name of the course this GradeBook represents
      System.out.printf( "Welcome to the grade book for\n%s!\n", 
         getCourseName() );
   } // end method displayMessage
} // end class GradeBook

// GradeBookTest.java

// GradeBook constructor used to specify the course name at the 

// time each GradeBook object is created.

public class GradeBookTest

{

   // main method begins program execution

   public static void main( String[] args )

   { 

      // create GradeBook object

      GradeBook gradeBook1 = new GradeBook( 

         "CS101 Introduction to Java Programming" ); 

      GradeBook gradeBook2 = new GradeBook( 

         "CS102 Data Structures in Java" );

      

      // display initial value of courseName for each GradeBook

      System.out.printf( "gradeBook1 course name is: %s\n",

         gradeBook1.getCourseName() );

      System.out.printf( "gradeBook2 course name is: %s\n",

         gradeBook2.getCourseName() );

   } // end main

} // end class GradeBookTest