/**
 * A class that maintains information on a book.
 * This might form part of a larger application such
 * as a library system, for instance.
 *
 * @author (Insert your name here.)
 * @version (Insert today's date here.)
 */
class Book
{
    // The fields.
    private String author;
    private String title;
    private int pages;
    private String refNumber;
    /**
     * Set the author and title fields when this object
     * is constructed.
     */
    public Book(String bookAuthor, String bookTitle, int nrPages)
    {
        author = bookAuthor;
        title = bookTitle;
        pages = nrPages;
        refNumber = "";
    }
    
    
        
    // Add the methods here ...
    
    public String getAuthor () {
    
    return author;
    
}

    public String getTitle () {
        
        return title;
    }
    
    public void print() {
        
        System.out.println (author);
        System.out.println (title) ;
    }
    
    public int getPages(){
        
        return pages;
    
    }
   
    public void printDetails() {
        
        System.out.println("##################################");
        System.out.println ("Title: " + title);
        System.out.println ("Author: " + author);
        System.out.println ("NoPages: " + pages);
        System.out.println("###################################");}
    }
        

        
       public void set refNumber(String ref){
           refNumber = ref;
        }    
        
        public String getrefNumber(){
            return refNumber;
        }