Wednesday Dec 17, 2014

Java Conferences in Africa

by guest blogger Max Bonbhel

JCertif Kigali 2014 was once again a great success. Over 250 Developers turned this event again into the leading Developer Community Conference in Rwanda.

We're still digesting the great number of LIKEs votes collected during the event! Some stats:

Attendees for JCertif University: 250 each day
Women: 25
Sessions : 12
Speakers : 6
(including the Minister of Youth & ICT of Rwanda and Business representatives )
Training days : 2
Participating User Group : 2 (Kigali JUG and KLab)

Next Up: JCertif Tunisia February 7-8, 2015.  JCertif Tunisia is a 2 days of mix of technical session, training, life experience and a bit of adventure! The event will take place in Souse, Tunisia on February 7-8, 2015 (University and Conference). Share your experiences in development by submitting a proposal for this event!

JCertif, a 2014 Duke's Choice Award winner, is an independent, non-profit organization whose goal is to promote new technologies of information through activities such as conferences (JCertif Conf), workshops and programming courses (JCertif University), and a laboratory development of open source projects. J Certif is present in several countries including: Canada, France, Tunisia, Cameroon, Ivory Coast, Togo, Benin, Republic of Congo, and the Democratic Republic of Congo. Committees in Senegal and Algeria are being created.

Monday Dec 15, 2014

Ed Burns Discusses Servlet 4.0

Oracle Engineer and Spec Lead discusses Servlet 4.0, slated to be a part of Java EE 8. Servlet exposes HTTP to the Java Platform. Find out how you can learn the details about Servlet 4.0 and how you can get involved. Learn more on the Servlet Project Page on Java.net.

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

Thursday Dec 11, 2014

@Java Goes Over 200K Followers

Oracle is proud to announce the @Java twitter handle went over 200K followers in late November. Java developers are early adopters of disruptive technologies, and they took the lead on using this tool to their advantage. Tori Wieldt, Java Community Manager for the Oracle Technology Network, is the main tweeter for the account. She works to create the right balance between technical information, releases, events, and humor. “I want to include my personality on the account (humor!), but I’m not going to bore people with what I had for breakfast,” Tori told, uh, me.(1) It’s not just about followers, but about engagement. Tori loves the passion of the world-wide Java community. There’s also a nice karma that Twitter runs on Java.

Most Popular Tweets?
The most popular retweet of the last few years was from Javin Paul, a Java Architect in Mumbai, pointing to his blog explaining the difference between Method Overloading and Overriding.

Other popular tweets are the Friday Funnys:

Friday Funny: “Whats the object-oriented way to become wealthy?” A: Inheritance

Friday Funny: Traffic notice on Turkish highway: Insert your Windows installation disk: 

“So I can guess I can have it all, a passionate, world-wide community that likes to have fun!” Tori concluded.

(1) I’m a Gemini, so writing this was not as hard as you’d think. :-)

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!

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