MusicExchangeTestProgram3.java

import javafx.util.Pair;

public class MusicExchangeTestProgram3 {
    public static void main(String args[]) {
        // Create a new music exchange center
        MusicExchangeCenter   mec = new MusicExchangeCenter();

        // Create some users and give them some songs
        User discoStew = User.DiscoStew();
        User sleepingSam = User.SleepingSam();
        User ronnieRocker = User.RonnieRocker();
        User countryCandy = User.CountryCandy();
        User peterPunk = User.PeterPunk();

        // Register the users
        discoStew.register(mec);
        ronnieRocker.register(mec);
        sleepingSam.register(mec);
        countryCandy.register(mec);
        peterPunk.register(mec);

        // Log on all users
        discoStew.logon(mec);
        sleepingSam.logon(mec);
        ronnieRocker.logon(mec);
        countryCandy.logon(mec);
        peterPunk.logon(mec);
        System.out.println("Status: " + mec);

        // Simulate users downloading various songs
        discoStew.downloadSong(mec, "Bite My Arms Off", "Peter Punk");
        discoStew.downloadSong(mec, "Meadows", "Sleeping Sam");
        discoStew.downloadSong(mec, "If I Had a Hammer", "Country Candy");
        discoStew.downloadSong(mec, "Is that My Toenail ?", "Peter Punk");
        sleepingSam.downloadSong(mec, "Anvil Headache", "Peter Punk");
        sleepingSam.downloadSong(mec, "Is that My Toenail ?", "Disco Stew");
        sleepingSam.downloadSong(mec, "If I Had a Hammer", "Country Candy");
        countryCandy.downloadSong(mec, "Anvil Headache", "Peter Punk");
        countryCandy.downloadSong(mec, "Meadows", "Sleeping Sam");
        countryCandy.downloadSong(mec, "If I Had a Hammer", "Peter Punk");
        countryCandy.downloadSong(mec, "Only You Can Rock Me", "Ronnie Rocker");
        countryCandy.downloadSong(mec, "Is that My Toenail ?", "Disco Stew");
        peterPunk.downloadSong(mec, "Is that My Toenail ?", "Country Candy");
        peterPunk.downloadSong(mec, "Rock is Cool", "Ronnie Rocker");
        peterPunk.downloadSong(mec, "What?", "Ronnie Rocker");
        peterPunk.downloadSong(mec, "Meadows", "Sleeping Sam");

        // Display the downloaded songs
        System.out.println("\nHere are the downloaded songs: ");
        for (Song s: mec.getDownloadedSongs())
            System.out.println(s);

        // Display the downloaded songs alphabetically
        System.out.println("\nHere are the unique downloaded songs alphabetically: ");
        for (Song s: mec.uniqueDownloads())
            System.out.println(s);

        // Display the downloaded songs in order of popularity
        System.out.println("\nHere are the downloaded songs by populariry: ");
        for (Pair<Integer,Song> p: mec.songsByPopularity())
            System.out.println("(" + p.getKey() + " downloads) " + p.getValue());

        // Display the royalties
        System.out.println("\nHere are the royalties:\n");
        mec.displayRoyalties();
    }
}