//********************************************************************
//  SortableCD.java       Author: Lewis/Loftus/Cocking
//
//  Solution to Programming Project 6.11
//********************************************************************

import java.text.NumberFormat;

public class SortableCD implements Comparable
{
   private String title, artist;
   private double value;
   private int tracks;

   //-----------------------------------------------------------------
   //  Creates a new SortableCD with the specified information.
   //-----------------------------------------------------------------
   public SortableCD (String theTitle, String theArtist,
                      double theValue, int theTracks)
   {
      title = theTitle;
      artist = theArtist;
      value = theValue;
      tracks = theTracks;
   }

   //-----------------------------------------------------------------
   //  Returns a description of this SortableCD.
   //-----------------------------------------------------------------
   public String toString()
   {
      NumberFormat fmt = NumberFormat.getCurrencyInstance();

      String description;

      description = fmt.format(value) + "\t" + tracks + "\t";
      description += artist + "\t" + title;

      return description;
   }

   //-----------------------------------------------------------------
   //  Determines the relationship to another SortableCD, satisfying
   //  the Comparable interface. Sorts first by artist name, then
   //  by title.
   //-----------------------------------------------------------------
   public int compareTo (Object obj)
   {
      SortableCD other = (SortableCD) obj;

      int result =  title.compareTo (other.getTitle());
      if (result == 0)
         result = artist.compareTo (other.getArtist());

      return result;
   }

   //-----------------------------------------------------------------
   //  Returns the artist name for this SortableCD.
   //-----------------------------------------------------------------
   public String getArtist()
   {
      return artist;
   }

   //-----------------------------------------------------------------
   //  Returns the title of this SortableCD.
   //-----------------------------------------------------------------
   public String getTitle()
   {
      return title;
   }
}