/**
 * Subclass of LibraryItem that emulates a Book item.
 * 
 * @George Wilkinson 
 * @2.5
 */

import java.util.Scanner;
import java.util.NoSuchElementException;

public class Book extends PrintedItem
{
    private String author;
    private String isbn;

    /**
     * Constructor for objects of class Book
     * Since all field variables initialise as null, nothing should happen here.
     */
    public Book(){}
    
    /*
     * Return value of @author
     */
    public String getAuthor()
    {
        return author;
    }
    
    /*
     * Return value of @isbn.
     */
    public String getIsbn()
    {
        return isbn;
    }
    
    /*
     * Set value of @author.
     */
    public void setAuthor( String author )
    {
        this.author = author;
    }
    
    /*
     * Set value of @isbn
     */
    public void setIsbn( String isbn )
    {
        this.isbn = isbn;
    }
    
    /*
     * Print to terminal, relevant details of current object.
     */
    public void printDetails() {
        System.out.println( "ISBN: " + isbn +
        "\nAuthor: " + author );
        super.printDetails();
    }
    
    /**
     * Populate the fields with details from the scanner
     * Takes Parameters
     *  Scanner @detailScanner
     */
    public void readItemData( Scanner detailScanner ){
        if ( detailScanner != null ) {
            this.author = detailScanner.next().trim();
            this.isbn = detailScanner.next().trim();
            super.readItemData( detailScanner );
        }
    }
}