Assignment due tonight, please help me!

[twiggy62]

Ok, I must be losing it. I have been working on this project for over 20 hrs.
total. It should be easy as heck to do, but for some reason I cannot get it. I
think it is partly to do with the instructions, they seem real vague, I don't
understand exactly what I am to do. They read:

"Create a class called MusicCollection. This class must have member inner
classes called Artist and Recording. The Recording class must have an inner
class called Track that represents a single piece of music within a Recording
object. A MusicCollection object must have an array of Artist objects and an
array of Recording objects. Recording objects must have a single Artist object,
for simplicity, and an array of Track objects. Add a main method to
MusicCollection that tests the creation of all these objects."

This is what I have so far, any help would be greatly appreciated, or even
letting me know if I am on the right track, or if I am completely off.

/**
 * @author twiggy62
 */
public class MusicCollection {

    private int totalArtists = 0;
    private int totalRecordings = 0;
    private static final int ARRAY_LENGTH = 3;
    private Artist[] artistObjects = new Artist[ARRAY_LENGTH];
    private Recording[] recordingObjects = new Recording[ARRAY_LENGTH];

    /**
     * Test the creation of all objects
     * @param args The command line arguments
     * @exception Exception if a failure occurs while adding a object
     */
    public static void main(String[] args) throws Exception {
        MusicCollection mc = new MusicCollection();
        Artist art1 = mc.new Artist("twig");
        Artist art2 = mc.new Artist("twiggy");
        Artist art3 = mc.new Artist("tiggy62");
        Recording rec1 = mc.new Recording("1");
        Recording rec2 = mc.new Recording("2");
        Recording rec3 = mc.new Recording("3");
        System.out.println(mc);
    }

    /**
     * Provide a string representing the MusicCollection
     * @return string Representation of the object
     */
    @Override
    public String toString() {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < artistObjects.length; i++) {
            sb.append("Artist" + (i + 1) + ":" + artistObjects[i].artist
                    + " Recording: " + recordingObjects[i].record + " ");
        }
        return sb.toString();
    }

    public class Artist {

        private String artist;

        public Artist(String name) {
            artist = name;

            if (totalArtists < ARRAY_LENGTH) {
                artistObjects[totalArtists++] = this;
            }
        }
    }

    public class Recording {

        private String record;

        public Recording(String name) {
            record = name;

            if (totalRecordings < ARRAY_LENGTH) {
                recordingObjects[totalRecordings++] = this;
            }
        }

        public class Track {

            private String track;

            public Track(String name) {
                track = name;

            }
        }
    }
}

[twiggy62]

Wow... no responses.

Is this project a stumper?

[Fubarable]

Wow... no responses.

Is this project a stumper?

Nah, it's a "here's my homework, fix it for me" post which often doesn't get many responses. You're far better off telling us exactly what is working, what isn't, etc, in other words, making it as easy as possible for others to help you.

Much luck.

[twiggy62]

Yeah I understand.

I'll just turn it in the way it is for now then correct it when I have more time. I already spent way to much time on this project.

[[RaIdEn]]

Ok, I must be losing it. I have been working on this project for over 20 hrs.
total. It should be easy as heck to do, but for some reason I cannot get it. I
think it is partly to do with the instructions, they seem real vague, I don't
understand exactly what I am to do. They read:

"Create a class called MusicCollection. This class must have member inner
classes called Artist and Recording. The Recording class must have an inner
class called Track that represents a single piece of music within a Recording
object. A MusicCollection object must have an array of Artist objects and an
array of Recording objects. Recording objects must have a single Artist object,
for simplicity, and an array of Track objects. Add a main method to
MusicCollection that tests the creation of all these objects."

This is what I have so far, any help would be greatly appreciated, or even
letting me know if I am on the right track, or if I am completely off.

Code:

/** * @author twiggy62 */ public class MusicCollection { private int totalArtists = 0; private int totalRecordings = 0; private static final int ARRAY_LENGTH = 3; private Artist[] artistObjects = new Artist[ARRAY_LENGTH]; private Recording[] recordingObjects = new Recording[ARRAY_LENGTH]; /** * Test the creation of all objects * @param args The command line arguments * @exception Exception if a failure occurs while adding a object */ public static void main(String[] args) throws Exception { MusicCollection mc = new MusicCollection(); Artist art1 = mc.new Artist("twig"); Artist art2 = mc.new Artist("twiggy"); Artist art3 = mc.new Artist("tiggy62"); Recording rec1 = mc.new Recording("1"); Recording rec2 = mc.new Recording("2"); Recording rec3 = mc.new Recording("3"); System.out.println(mc); } /** * Provide a string representing the MusicCollection * @return string Representation of the object */ @Override public String toString() { StringBuffer sb = new StringBuffer(); for (int i = 0; i < artistObjects.length; i++) { sb.append("Artist" + (i + 1) + ":" + artistObjects[i].artist + " Recording: " + recordingObjects[i].record + " "); } return sb.toString(); } public class Artist { private String artist; public Artist(String name) { artist = name; if (totalArtists < ARRAY_LENGTH) { artistObjects[totalArtists++] = this; } } } public class Recording { private String record; public Recording(String name) { record = name; if (totalRecordings < ARRAY_LENGTH) { recordingObjects[totalRecordings++] = this; } } public class Track { private String track; public Track(String name) { track = name; } } } }

for the recording class i think it said

Recording objects must have a single Artist object

isnt it. chk that whether your missing in adding the Artist object and the array of tracks.