[Ch10b] Making a start on examples for the second part of 10b

package ch10b;

import java.util.ArrayList;

import java.util.List;

public class Jukebox7 {

  List<SongV4> songList = new ArrayList<>();

  MockMoreSongs mockFile = new MockMoreSongs();

  public static void main(String[] args) {

    new Jukebox7().go();

  }

  public void go() {

    songList = mockFile.getSongs();

    System.out.println(songList);

    songList.sort((one, two) -> one.getTitle().compareTo(two.getTitle()));

    System.out.println(songList);

    songList.sort((one, two) -> one.getArtist().compareTo(two.getArtist()));

    System.out.println(songList);

  }

}

package ch10b;

import java.util.ArrayList;

import java.util.List;

class MockMoreSongs {

  public List<SongV4> getSongs() {

    List<SongV4> mySongs = new ArrayList<>();

    mySongs.add(new SongV4("somersault", "zero 7", "50"));

    mySongs.add(new SongV4("cassidy", "grateful dead", "65"));

    mySongs.add(new SongV4("$10", "hitchhiker", "80"));

    mySongs.add(new SongV4("havana", "cabello", "60"));

    mySongs.add(new SongV4("$10", "hitchhiker", "80"));

    mySongs.add(new SongV4("Cassidy", "grateful dead", "65"));

    mySongs.add(new SongV4("50 ways", "simon", "70"));

    return mySongs;

  }

}

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package ch10b;

public class SongV4 implements Comparable<SongV4> {

  String title;

  String artist;

  String bpm;

  public int compareTo(SongV4 s) {

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

  }

  SongV4(String t, String a, String b) {

    title = t;

    artist = a;

    bpm = b;

  }

  public String getTitle() {

    return title;

  }

  public String getArtist() {

    return artist;

  }

  public String getBPM() {

    return bpm;

  }

  public String toString() {

    return title + ": " + artist;

  }

}