— Scott McNealy, Sun Microsystems Chairman, President and ceo

SongListMore.txt
Pink Moon/Nick Drake/5/80
Somersault/Zero 7/4/84
Shiva Moon/Prem Joshua/6/120
Circles/BT/5/110
Deep Channel/Afro Celts/4/120
Passenger/Headmix/4/100
Listen/Tahiti 80/5/90
class 
Song
{
String title;
String artist;
String rating;
String bpm; 
Song(String t, String a, String r, String b) {
title = t;
artist = a;
rating = r;
bpm = b;
}
public String getTitle() {
return title;
}
public String getArtist() { 
return artist;
}
public String getRating() {
return rating;
}
public String getBpm() {
return bpm;
}
 
public String toString() {
 
 
return title; 
 
}
}
Four instance variables for the 
four song attributes in the file.
The new song file holds four 
attributes instead of just two. 
And we want ALL of them in our 
list, so we need to make a Song 
class with instance variables for all 
four song attributes.
The variables are all set in 
the constructor when the 
new Song is created.
The getter methods for 
the four attributes.
We override toString(), because when you do a System.
out.println(aSongObject), we want to see the title. 
When you do a System.out.println(aListOfSongs), it calls 
the toString() method of EACH element in the list.
sorting your own 
objects

---

collections 
with 
generics
you are here
4
537
import java.util.*;
import java.io.*;
public class Jukebox3 {
ArrayList

 songList = new ArrayList