The feature we always hear about whenever Java 9 is in the news is Jigsaw, modularity for Java. But modularity just doesn’t scratch the same developer itch that Java 8’s lambdas and streams did, and as developers we’re left with a vague sensation that version 9 might just not be that interesting.

In fact, Java 9 actually has a lot of great additions and changes which will make Java just that bit nicer to work with. These features can’t be lumped under a nice umbrella term like Java 8’s lambdas and streams, but the Java 9 changes are scattered throughout the APIs and language features that we regularly use.

In this presentation at Devoxx UK 2017, Trisha shows, via live coding:

  • How we can use the new Flow API to utilise Reactive Programming
  • How the improvements to the Streams API make it easier to control real-time streaming data
  • How the Collections convenience methods simplify code

Along the way we’ll bump into other Java 9 features that make our lives easier, including some of the additions to interfaces and how deprecation has changed. As the application in built in real time, we’ll see that once you start using Java 9, you can’t go back to Before.

Trisha Gee

Trisha has developed Java applications for a range of industries, including finance, manufacturing and non-profit, for companies of all sizes. She has expertise in Java high performance systems, is passionate about enabling developer productivity, and dabbles with Open Source development. Trisha blogs regularly on subjects that she thinks developers and other humans should care about, she’s a leader of the Sevilla Java User Group, a key member of the London Java Community, a MongoDB Master and a Java Champion. She believes we shouldn’t all have to make the same mistakes again and again, so now she works for JetBrains where she can tell developers about all the cool stuff she’s learnt so far.

Real World Java 9 with Trisha Gee

About The Author
- Mark is co-founder of Voxxed.com and organiser of Devoxx UK. He is involved in several technical community initiatives, including FindaTechJob.com Outside of work he can be found bumbling around the countryside in his VW camper rediscovering his inner hippie, giving his opinion to anyone who'll listen - and many who won't anyway.

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