package chap16;

import java.util.*;

import java.io.*;

public class Jukebox6

{

ArrayList<SongBad> songList = new ArrayList<SongBad>();

public static void main(String[] args) {

new Jukebox6().go();

}

public void go() {

getSongs();

System.out.println(songList);

Collections.sort(songList);

System.out.println(songList);

HashSet<SongBad> songSet = new HashSet<SongBad>();

songSet.addAll(songList);

System.out.println(songSet);

}

void getSongs() {

try {

File file = new File("SongListMore.txt");

BufferedReader reader = new BufferedReader(new FileReader(file));

String line = null;

while ((line = reader.readLine()) != null) {

addSong(line);

}

} catch (Exception ex) { ex.printStackTrace(); }

}

void addSong(String lineToParse) {

String[]tokens = lineToParse.split("/");

SongBad nextSong = new SongBad(tokens[0], tokens[1], tokens[2], tokens[3]);

songList.add(nextSong);

}

}

class SongBad implements Comparable <SongBad>

{

String title;

String artist;

String rating;

String bpm;

public SongBad(String t, String a, String r, String b) {

title = t;

artist = a;

rating = r;

bpm = b;

}

public boolean equals(Object aSong) {

SongBad s = (SongBad) aSong;

return getTitle().equals(s.getTitle());

}

//leaving this out makes this a bad form of song. Uncomment this to get rid of the duplicates

/*public int hashCode() {

return title.hashCode();

}

*/

public int compareTo(SongBad s)

{

return title.compareTo(s.getTitle());

}

public String getArtist()

{

return artist;

}

public String getBpm()

{

return bpm;

}

public String getRating()

{

return rating;

}

public String getTitle()

{

return title;

}

public String toString() {

return title;

}

}