/**
 * Subclass of AudioVisual, to create objects of a CD.
 * 
 * @George Wilkinson
 * @1.0
 */

import java.util.Scanner;

public class CD extends AudioVisual
{
    private String artist;
    private int noOfTracks;
    
    /**
     * Constructor for objects of class CD
     * Since all field variables initialise as null, nothing should happen here.
     */
    public CD(){}
    
    /*
     * Return value of @artist.
     */
    public String getArtist()
    {
        return artist;
    }
    
    /*
     * Return value of @noOfTracks
     */
    public int noOfTracks()
    {
        return noOfTracks;
    }
    
    /*
     * Set value of @artist.
     */
    public void setArtist( String artist )
    {
        this.artist = artist;
    }
    
    /*
     * Set value of @noOfTracks.
     */
    public void setNoOfTracks( int noOfTracks )
    {
        this.noOfTracks = noOfTracks;
    }
    
    /*
     * Print to terminal, relevant details of current object.
     */
    public void printDetails() {
        System.out.println( "Artist: " + artist +
        "\nTrack Count: " + noOfTracks );
        super.printDetails();
    }
    
    /*
     * Passed a scanner, set the relevant details to their corresponding field variables.
     */
    public void readItemData( Scanner detailScanner ){
        if ( detailScanner != null ) {
            this.artist = detailScanner.next().trim();
            this.noOfTracks = Integer.parseInt( detailScanner.next().trim() );
            super.readItemData( detailScanner );
        }
    }
    
}