Wednesday Dec 10, 2014

Wearables in Action

In this interview, Java Evangelist Angela Caicedo demonstrates her new jacket designed with wearable technologies. She can listen music from her favorite playlists, monitor her heart beat, and get her emails. All of it powered by a Raspberry Pi. 


Tuesday Dec 09, 2014

New Java Champion: Marc Hoffmann

Congratulations to the new Java Champions Marc Hoffmann!

Marc has over 10 years of Java programming experience and is the leading expert in bytecode coverage analysis. Since 2008, he has been working on Java-based railway control systems at mtrail in Berne, Switzerland. He is also the lead contributor to the JaCoCo Code Coverage engine.

Hoffmann started the EclEmma project in 2006 and authored the initial releases. EclEmma is a free Java code coverage tool for Eclipse, available under the Eclipse Public License. It brings code coverage analysis directly into the Eclipse workbench. EclEmma won the "Best Open Source Eclipse-Based Developer Tool“ - Community Award in 2008. In 2009, Hoffmann also started the JaCoCo project to create a modern code coverage backend for EclEmma and other tools. JaCoCo is now widely used as code coverage engine, including for OpenJDK 8 development. You can view his presentation, Code Coverage Revised: EclEmma on JaCoCo [PDF], from EclipseCon 2012.

Hoffmann is a well-known conference speaker on the topic of Code Coverage Analysis.  Heinz Kabutz, founder of the JCrete unconference, said, "Marc has been a big supporter of the JCrete unconference, attending all four years so far and always contributing more than he has consumed." 

Congratulations! As Java continues to grow, look for more Java Champions to join this elite group soon. The Java Champions are an exclusive group of passionate Java technology and community leaders who are community-nominated and selected under a project sponsored by Oracle. Java Champions get the opportunity to provide feedback, ideas, and direction that will help Oracle grow the Java Platform. Nominees are named and selected through a peer review process. (Current Oracle employees are not eligible.) Learn more at the Java Champions page on Java.net.

Voxxed, a New Java Portal!

In this interview, Mark Hazel and Lucy Carey discuss a new Java knowledge sharing platform called Voxxed. The website is a “concentration of outstanding content from conferences. It includes tutorials, articles, blogs, and interviews” explains Mark. The topics cover the entire Java ecosystem: JVM, methodology, cloud, future, and mobile.Visit Voxxed.com


Monday Dec 08, 2014

Software Development in Turkey

What technologies are hot in Turkey? How do you get more women to speak at conferences. Turkish Project Manager Nilay Yener discusses GDG Fest Istanbul and GDG Fest Women. She describes the strategies she used to get more women to attend and speak at GDG Fest Woman. Leran more at GDG DevFestW

We're always adding more videos to the YouTube/Java channel.  

OTN Virtual Technology Summit - Replay

The Oracle Technology Network (OTN) is excited to invite you to watch the Virtual Technology Summit on demand. VTS is a great way to keep up with Java. Learn from Java Champions and Oracle experts as they share their insight and expertise.

In this second edition, you will get code-laden training on how to:


  • Implement solutions using the latest Java EE features
  • Use lambdas and the new streams library API
  • Tune your Java applications for high performance

Watch the sessions now! Register with your email to access all the content for free. 

Tuesday Nov 18, 2014

Java Magazine: The Internet of Things

Java is everywhere. As the Internet of Things (IoT) moves from hype to reality, we’re seeing embedded Java used in a wide range of applications, from industrial automation systems and medical imaging devices to connected vehicles and smart meters. In the November/December 2014 issue of Java Magazine, we bring you the latest on Java and the IoT.

In our interview with Oracle’s Henrik Ståhl, we discuss the opportunities and challenges that the IoT presents for Java developers, and how changes in Java SE and Java ME (and their embedded versions) make it easier to reassemble and strip down code for smaller devices.

We also talk to Freescale’s Maulin Patel about the IoT and Java, profile IoT Developer Challenge winner Lhings Connected Table, and show you how robots make factories smarter. Plus, Vinicius Senger introduces the Device I/O API, Kai Kreuzer brings us the latest on smart homes, and Michael Kölling shows us how to program in Java on the Raspberry Pi.

Plus, we take a look at the developers of tomorrow in “Java: the Next Generation.” I’ve been talking to kids at various programming events for the last few months, and I am inspired. These kids are brave, bold, and so smart. They do not fear technology; they embrace it. I’m thrilled to see so many programs around the world that are teaching young people to code and helping them to create their futures.

Read all about it in the current issue of Java Magazine!

Sunday Nov 16, 2014

How to Migrate Your Code to Java 8

The new facilities in Java 8 are going to change the way you write code. Your should code be more expressive and concise. But exactly how do you make that happen?  

The OTN Virtual Technology Summit (VTS) session Migrating Your Code to Java 8 by Venkat Subramanian shows you how. This presentation takes several common Java code examples, discusses the core idea expressed in the code, and transforms that code to use the facilities in Java 8. Watch and interact as learn how to reduce the size of your Java code. “It’s like putting your code on a weight loss program,” Subramanian explains with a smile.

Dr. Venkat Subramaniam is an award-winning author, founder of Agile Developer, Inc., and an instructional professor at the University of Houston. He has trained and mentored thousands of software developers in the US, Canada, Europe, and Asia, and is a regularly-invited speaker at several international conferences. His latest book is Functional Programming in Java: Harnessing the Power of Java 8 Lambda Expressions.

The Virtual Technology Summit (VTS) also includes sessions on Java EE and Java performance. We'll kick off the VTS with Java Community Update by Tori Wieldt. There will be places to hang out and meet other attendees between sessions. View the full agenda, abstracts, and participation instructions on the VTS Event Resources Community Space.  The Virtual Technology Summits (VTS) are interactive, online events, sponsored by the Oracle Technology Network (OTN). They are free, but you must register:

Each VTS features four technical tracks, each with a unique focus on specific tools, technologies, and tips: Java, Database, Middleware and Systems. Registration allows you to attend any session on any track. See you there!

Wednesday Nov 12, 2014

New Java Champions: Mert Caliskan and Maurice Naftalin

Congratulations to the new Java Champions Mert Caliskan and Maurice Naftalin!

Mert Caliskan is a Principle Software Architect living in Ankara, Turkey. He has over 10+ years of expertise in software development with the architectural design of Enterprise Java web applications. Caliskan is an open source advocate for software projects such as PrimeFaces. Also, Caliskan is the co-author of PrimeFaces Cookbook and Beginning Spring. He is the founder of AnkaraJUG, which is the most active JUG in Turkey. He is part-time lecturing at Hacettepe University about Enterprise Web Applications' Architecture and Web Services. He shares his knowledge at national and international conferences like JDays 2015, JavaOne 2013, JDC2010 and JSFDays'08. You can follow him on Twitter @mertcal

Maurice Naftalin has many years of experience as a software engineer for the Java platform.  He was the first certified instructor for the Java Specialists courses.  Naftalin started the LambdaFAQ website, where he collects lots of great tips on Java 8. Also, Naftalin has published two books on Java: Java Generics and Collections and Mastering Lambdas: Java Programming in a Multicore WorldNaftalin is a regular speaker at Java events and was chosen as a Rock Star Speaker at JavaOne 2013. You can follow him on Twitter @mauricenaftalin

Congratulations! As Java continues to grow, look for more Java Champions to join this elite group soon. The Java Champions are an exclusive group of passionate Java technology and community leaders who are community-nominated and selected under a project sponsored by Oracle. Java Champions get the opportunity to provide feedback, ideas, and direction that will help Oracle grow the Java Platform. Nominees are named and selected through a peer review process. (Current Oracle employees are not eligible.) Learn more at the Java Champions page on Java.net.

Tuesday Nov 11, 2014

Devoxx 2014 Highlights

In this video, Devoxx managing director Stephan Janssen talks about the new additions to this year’s conference. Discover the Ignite sessions, Hackergarten, Playground and Devoxx Hunt

Monday Nov 10, 2014

Devoxx Conference Is Underway!

The biggest Java developer conference in Europe started today with two days of University Sessions, 3 hour labs on various Java topics. 

The sessions from Oracle speakers during those two days are:

Monday, November 10

  • Devoxx4Kids Workshops Lab with Stephen Chin, Daniel De Luca, and Arun Gupta
  • Devoxx Future: IoT Magic Show with Stephen Chin and Angela Caicedo 

Tuesday, November 11

  • 
Rapberry Pi with Java 8 with Stephen Chin, James Weaver and Robert Savage 

  • Go With The Flow: Streams and Lambdas Power Lab – Hands on Labs with 
Simon Ritter, Stuart Marks, and Angela Caicedo, 

  • Birds-of-a-feather: JCP, Adopt-a-JSR, and You with Heather Van Cura

On Tuesday, attendees will get the chance to work on open source projects such as JSRs with the help of veteran contributors and spec leads at the Hackergarten.

Starting tomorrow at the Oracle booth, enter the raffle for a chance to win a Raspberry Pi. Three Raspberry Pis will be raffled off every day. Don’t miss the beer bash late in the afternoon on Tuesday and Thursday.

Check out all the Oracle sessions during Devoxx 2014 

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