Miscellaneous library updates - Java 8 in Action: Lambdas, Streams, and Functional-Style Programming - page 442

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 4 - 6 . 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

Class/interface New methods

Map getOrDefault, forEach, compute, computeIfAbsent, computeIfPresent, merge,

putIfAbsent, remove(key, value), replace, replaceAll

Iterable forEach, spliterator

Iterator forEachRemaining

Collection removeIf, stream, parallelStream

List replaceAll, sort

BitSet stream

Map

The Map interface is the most updated interface, with support for several new convenient
methods. For example, the method getOrDefault can be used to replace an existing idiom that