Grade Book 2 - Java Sample Program

// GradeBook.java
// Class declaration with a method that has a parameter.

public class GradeBook
{
   // display a welcome message to the GradeBook user
   public void displayMessage( String courseName )
   {
      System.out.printf( "Welcome to the grade book for\n%s!\n", 
         courseName );
   } // end method displayMessage
} // end class GradeBook

// GradeBookTest.java

// Create GradeBook object and pass a String to 

// its displayMessage method.

import java.util.Scanner; // program uses Scanner

public class GradeBookTest

{

   // main method begins program execution

   public static void main( String[] args )

   { 

      // create Scanner to obtain input from command window

      Scanner input = new Scanner( System.in );

      // create a GradeBook object and assign it to myGradeBook

      GradeBook myGradeBook = new GradeBook(); 

      // prompt for and input course name

      System.out.println( "Please enter the course name:" );

      String courseName = input.nextLine(); // read a line of text

      System.out.println(); // outputs a blank line

      // call myGradeBook's displayMessage method 

      // and pass courseName as an argument

      myGradeBook.displayMessage( courseName );

   } // end main

} // end class GradeBookTest