Example showing streams don't impact underlying collection (8ab29de3) · Commits · examples / Head First Java 3rd Edition

src/main/java/Jukebox6.java

+11 −0

Changes for src/main/java/Jukebox6.java: 11 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		@@ -17,4 +17,15 @@ public class Jukebox6 {
		songList.sort((one, two) -> one.getArtist().compareTo(two.getArtist()));
		System.out.println(songList);
		}

		public void ch10c() {
		songList = mockFile.getSongsV3();
		System.out.println(songList);
		songList.sort((one, two) -> {
		return one.getTitle().compareTo(two.getTitle());
		});
		System.out.println(songList);
		songList.sort((one, two) -> one.getArtist().compareTo(two.getArtist()));
		System.out.println(songList);
		}
		}

+0 −1

Changes for src/main/java/ch10c/HelloLambda.java: 0 added lines, 1 removed line.
Original line number	Diff line number	Diff line
		package ch10c;

		import java.util.ArrayList;
		import java.util.Arrays;
		import java.util.List;
		import java.util.stream.Collectors;

+13 −0

Changes for src/main/java/ch10c/LimitWithStream.java: 13 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		@@ -7,6 +7,7 @@ import java.util.stream.Stream;
		public class LimitWithStream {

		public static void main(String[] args) {
		printCollectionAfterChanges();
		}

		void streamExamples() {
		@@ -78,5 +79,17 @@ public class LimitWithStream {
		System.out.println("result = " + result);
		}

		static void printCollectionAfterChanges() {
		List<String> strings = List.of("I", "am", "a", "list", "of", "Strings");

		Stream<String> limit = strings.stream()
		.limit(4);
		System.out.println("strings = " + strings);

		List<String> result = limit.collect(Collectors.toList());
		System.out.println("strings = " + strings);
		System.out.println("result = " + result);
		}

		}