Over a million developers have joined DZone.
{{announcement.body}}
{{announcement.title}}

JDK 8: State of the Collections

DZone's Guide to

JDK 8: State of the Collections

· Java Zone
Free Resource

Bitbucket is for the code that takes us to Mars, decodes the human genome, or drives your next car. What will your code do? Get started with Bitbucket today, it's free.

Here’s the latest publication by Brian Goetz, Oracle’s project lead for JSR 335, a.k.a. Project Lambda. Here’s a nice example showing new collection features, such as “Streams” using method references:

List<String> strings = ...
int sumOfLengths = strings.stream()
                          .map(String::length)
                          .reduce(0, Integer::plus);

Another nice example showing the use of lambda expressions:

int sum = shapes.stream()
                .filter(s -> s.getColor() == BLUE)
                .map(s -> s.getWeight())
                .sum();

See more, here:
http://cr.openjdk.java.net/~briangoetz/lambda/sotc3.html

Bitbucket is the Git solution for professional teams who code with a purpose, not just as a hobby. Get started today, it's free.

Topics:

Published at DZone with permission of Lukas Eder, DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.

THE DZONE NEWSLETTER

Dev Resources & Solutions Straight to Your Inbox

Thanks for subscribing!

Awesome! Check your inbox to verify your email so you can start receiving the latest in tech news and resources.

X

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}