//CS5-HMC-Sp.,00-HW9-3
//A. Khakpour, Fall 98

class Words3
{
   public static void main (String args[])
   {
      Textbook text     =  new Textbook(600, "Lewis", "Computer");
      Novel novel       =  new Novel(300, "Scott", "Quentin");
      Magazine magazine =  new Magazine(50, "Eddy");

      text.page_message();
      text.author_message();
      text.subject_message();
      System.out.println();

      novel.page_message();
      novel.author_message();
      novel.character_message();
      System.out.println();

      magazine.page_message();
      magazine.editor_message();
      System.out.println();
   }  
}

class Reading_Material
{
   protected int pages;

   public Reading_Material (int num_pages)
   {
      pages = num_pages;
   }

   public void page_message()
   {
      System.out.println ("Number of pages: " + pages);
   }
}                                      

class Book extends Reading_Material
{
   protected String author;

   public Book (int num_pages, String author_name)
   {
      super (num_pages);
      author = author_name;
   }

   public void author_message()
   {
      System.out.println ("The name of the author: " + author);
   } 
}

class Textbook extends Book
{
   private String subject;

   public Textbook (int num_pages, String author_name, String subject_name)
   {
      super (num_pages, author_name);
      subject = subject_name;
   }

   public void subject_message()
   {
      System.out.println ("The subject of the textbook: " + subject);
   }
}

class Novel extends Book
{
   private String character;

   public Novel (int num_pages, String author_name, String character_name)
   {
      super (num_pages, author_name);
      character = character_name;
   }

   public void character_message()
   {
      System.out.println ("The character of the novel: " + character);
   } 
}  

class Magazine extends Reading_Material
{
   private String editor;

   public Magazine (int num_pages, String editor_name)
   {
      super (num_pages);
      editor = editor_name;
   }

   public void editor_message()
   {
      System.out.println ("The name of the editor: " + editor);
   } 
}