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. 

Friday Dec 05, 2014

Game Goodness: Devoxx Hunt

Was I really walking the streets of Antwerp at midnight, staring at my phone, hoping to find a beacon? I was! Attendees of Devoxx Belgium got to play Devoxx Hunt, a game to find sensors throughout the venue and city of Antwerp. In this video, game creators Johan Vos and Peter Kuterna discuss the how they built the game. Learn more about Devoxx Hunt at hackergarten.net.

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

Thursday Dec 04, 2014

Devoxx4Kids Fun Fest in Silicon Valley

Devoxx4Kids is presenting a weekend full of tech workshops for kids on Dec. 20/21, including topics like Raspberry Pi, Arduino, Python, Minecraft Modding, Circuit Art, and much more. Be sure to sign up and follow the software download instructions (your child will get sooo much more out the day if they have the software downloaded and ready to go before their sessions). This Fun Fest is an ideal start to your Winter holidays (have your kids *make* games rather than just playing them!). Register your kids now, sessions fill up quickly!

Help us spread the word locally by sharing the link in your neighborhood alias, school, work, and local community. A downloadable flyer is available to share.

The goal of Devoxx4Kids USA is to get kids excited about technology with the hope that many of them will become producers of technology in future. They conduct variety of hands-on workshops where children build computer games, program robots, build circuits, program microcontrollers etc. and have fun. There are lots of opportunities for volunteering such as registration, technical support desk, helping the instructor, and many more. If you are interested in volunteering, then please sign up (training available! lots of ways to help!).

Wednesday Dec 03, 2014

HackerGarten: Andres Almiray and Sven Reimers

In this video Andres Almiray talks about the HackerGarten at Devoxx 2014. Sven Reimers discusses creating a JavaFX frontend to the Devoxx tweetwall. Interview by Heather VanCura of the Java Community Process (JCP). Learn more about HackerGarten at hackergarten.net.

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

Wednesday Nov 19, 2014

Java ME Embedded 8.1 Released

by guest blogger Alexander Belokrylov

Java ME Embedded 8.1 has been released. The new version of the Java ME Embedded platform has two significant enhancements. First, it works on ARM Cortex M4 with very limited RAM size by delivering a port for Freescale K64F. Second, it provides Eclipse IDE support in Java ME SDK. Learn more on the release page.

FRDM-K64F is based on  MK64FN1M0VLL12 MCU (120 MHz, 1 MB flash memory, 256 KB RAM, low-power, crystal-less USB, and 100 Low profile Quad Flat Package (LQFP)). It is has a form-factor of Arduino™ R3 pin layout. The FRDM-K64F goes with a lot of peripherals to enable rapid prototyping. In addition to UART, I2C, SPI, and GPIO interfaces on board, it has 3 LEDs and 2 switches which are accessible from Java Runtime. Another helpful device that is integrated into K64F is accelerometer-magnetometer with I2C interface (FXOS8700Q). You can easily access it from your Java application and create a compass application, for instance. [Sample code provided in Alexander Belokrylov's blog.]

Java ME SDK 8.1 brings smooth experience of Java Embedded developers to the Eclipse world. Java ME SDK plugin for Eclipse is based on the recently released Mobile Tools for Java TM (MTJ) 2.0 which had been done with significant efforts of Oracle's engineers. Now, all impressive features of Java ME SDK, such as on-device debugging, memory and network monitors, CPU profiling, and memory profiling are available in Eclipse. To install it, you need just to go the OTN web, download and install Java ME SDK with Eclipse plugin.

If you have any questions or suggestions, please speak up at our forum.

The best source of information about Java ME Embedded is Java ME Documentation portal.

Orginal blog Java ME Embedded 8.1 brings Java to ARM by Alexander Belokrylov.

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

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