Ideas for sorting the songs (cc3cf32d) · Commits · examples / Head First Java 3rd Edition

src/main/java/SongV3.java

+2 −1

Changes for src/main/java/SongV3.java: 2 added lines, 1 removed line.
Original line number	Diff line number	Diff line
		@@ -25,7 +25,8 @@ class SongV3 implements Comparable<SongV3> {
		return bpm;
		}

		@Override
		public String toString() {
		return title;
		return "{" + title + ", " + artist + ", " + bpm + '}';
		}
		}

0 → 100644

+26 −0

Changes for src/main/java/Sorting.java: 26 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		import java.util.Collections;
		import java.util.Comparator;
		import java.util.List;

		public class Sorting {
		public static void main(String[] args) {

		List<SongV3> songList = new MockSongV2File().getSongsV3();
		songList.sort((song1, song2) -> song1.getTitle().compareTo(song2.getTitle()));
		System.out.println(songList);
		songList.sort((song1, song2) -> song2.getTitle().compareTo(song1.getTitle()));
		System.out.println(songList);
		songList.sort((song1, song2) -> -song1.getTitle().compareTo(song2.getTitle()));
		System.out.println(songList);
		songList.sort((song1, song2) -> song1.getArtist().compareTo(song2.getArtist()));
		System.out.println(songList);
		songList.sort((song1, song2) -> song1.getBPM().compareTo(song2.getBPM()));
		System.out.println(songList);
		}

		void methodReferences(List<SongV3> songList) {
		Collections.sort(songList, Comparator.comparing(SongV3::getTitle));
		songList.sort((song1, song2) -> song1.getTitle().compareTo(song2.getTitle()));

		}
		}