import java.util.*;
class Song {
    private String title;
    private String artist;
    private int year;
    private int id;
    private static int LAST_ID;
    


    public Song() {
        //id += LAST_ID++;
        LAST_ID = LAST_ID + 1;
        id = LAST_ID;
    }

    public Song(String title, String artist, int year) {
        //this();
        this.title = title;
        this.artist = artist;
        this.year = year;
    }

    public String getTitle()  { return title; }
    public String getArtist() { return artist; }
    public int    getYear()   { return year; }

    public void setTitle(String value) { this.title = value; }
    public void setArtist(String value) { this.artist = value; }
    public void setYear(int year) { this.year = year; }


    public boolean equals(Object o) {
        if ( o instanceof Song) {
            Song other = (Song) o;
            return (this.title.equals(other.getTitle()) && 
                    this.artist.equals(other.getArtist()) && 
                    this.year == other.getYear());
        }
        return false;
    }

    public String toString() {
        return "< " + this.title + " by " + this.artist + ", " + year + ">";
    }

    public static void main(String args[]) {
        ArrayList<Song> songs = new ArrayList<Song>();
        for(int i=0; i < 10; i++) {
            songs.add(new Song("" + i, "" + i, 2000));
        }

        Song s = new Song("1", "1", 2000);
        System.out.println("Does the array contain this object: " + songs.contains(s));

        System.out.println(songs);
    }
        
}