Appendix B. Miscellaneous library updates

This appendix reviews the main additions to the Java library.

B.1. Collections

The biggest update to the Collections API is the introduction of streams, which we discussed in chapters 46. There are also other updates, which we briefly review in this appendix.

B.1.1. Additional methods

The Java API designers made the most out of default methods and added several new methods to collection interfaces and classes. The new methods are listed in table B.1.

Table B.1. New methods added to collection classes and interfaces


New methods

Map getOrDefault, forEach, compute, computeIfAbsent, computeIfPresent, merge, putIfAbsent, remove(key, value), replace, replaceAll
Iterable ...

Get Java 8 in Action: Lambdas, streams, and functional-style programming now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.