Tuesday Jan 12, 2016

New Java Champion Rajmahendra Hegde

Welcome to the new Java Champion Rajmahendra Hegde!

Raj, a Java developer since 2000, is an Agile practitioner, a community organizer, an open source contributor, the founder of Chennai JUG leader and the current leader of JUG Hyderabad. JUG Chennai has been one of the most active JUG in India with Java developers contributing to technology like JavaFX, ScalaFX,  and Adopt-a-JSR. 

Raj is also a JCP member and has encouraged developers to contribute in Adopt-a-JSR. He received the 13th JCP Award in 2015 for Outstanding Adopt-a-JSR Participant. He is a member of expert groups for Units of Measurement API (JSR 363); Money and Currency API (JSR 354) and Contexts and Dependency Injection 2.0 (JSR 365)

Raj is a contributor for a number of open source projects including Visage, JBoss Forge, eWidgetFX, JRebirth, JavaKone, FXPlayGround, Frege, JBake. He also contributed to Social Media API (JSR 357) . He is a NetBeans DreamTeam Member and evangelizes NetBeans at many JUGs and conferences. 

You can follow him at @rajonjava(https://twitter.com/rajonjava)

Thursday Dec 17, 2015

Java Books in 2015

Whether you are looking for gifts or plan to catch up on reading over the holidays, there are many Java programming books available. Most of the authors are well-known leaders in the Java Community and famous writers with several programming books under their belts 

Java: The Legend by Ben Evans
Introducing Java 8 by Raoul-Gabriel Urma
Minecraft Modding with Forge by Aditya Gupta, Arun Gupta
Java Programming 24-Hour Trainer, 2nd Edition by Yakov Fain
Pragmatic Unit Testing in Java 8 with JUnit by Jeff Langr, Andy Hunt, Dave Thomas
Beginning Java Programming by Bart Baesens, Aimee Backiel, Seppe vanden Broucke
Java EE 7 Development with NetBeans 8 By David R. Heffelfinger
Functional Programming in Java by Venkat Subramaniam 
JavaFX Essentials by Mohamed Taman

If I missed anything that you wish to recommend, please suggest additional book titles as a comment.

Thursday Dec 10, 2015

Certification Discount ends December 31

Get 20% off any Java certification exam until December 31! Don’t miss this great opportunity to get Java certified and show off your credentials. 

How to get started 

1. Find the Java exam that meets your skill level and experience.
2. Review exam preparation and topics.
3. Register at Pearson VUE. Use promotion code Java20 to receive the 20% discount.

This globally available offer is open until December 31, 2015. 


Wednesday Oct 14, 2015

Java Champions Speaking at JavaOne 2015

Java Champions will present dozens of sessions this year again at JavaOne! They are an exclusive group of passionate Java technology and community leaders, nominated by the Java community. They are seasoned developers and architects with in-depth knowledge about development.  

These top speakers share their know-how in all the JavaOne tracks including client, core Java platform, Internet of Things, JVM languages, security, tools, server-side, cloud and methodology.  

This year, we created a dedicated page on the JavaOne site where you can easily find the sessions presented by Java Champions. You can find out about their sessions by day and read the session abstract.  JavaOne is your chance to learn from the greatest number of Java Champions! 

Wednesday Aug 26, 2015

New Java Champion Vinicius Senger

Welcome to the new Java Champion: Vinicius Senger 

Vinicius Senger is the founder of Globalcode, a company teaching programming to trainers and professionals.

He has 20 years of experience in programming. His first Java app ran in HPUX capturing SNMP data from the network and storing in Sybase. He did a number of projects with J2EE for financial services and banks using web components, EJB, JMS and many different types of architectures using JSF, Seam, Spring, etc.

In addition, he wrote programs on embedded devices and created the 2011 Duke's Choice Award project called jHome Automation that uses Java EE to provide home automation using different devices and communication protocols. He is dedicated to developing Java Embedded and Java EE projects. Last year, he implemented Java Embedded for a sailboat for JavaOne 2014. He just launched Combike project, which is a Smart Helmet for bikers using camera, GPS, accelerometer and a social network behind.

He is a frequent speaker at many Java conferences around the world including Devoxx, JFokus, and The Developer Conference in Brazil that he co-organizes. He has been a JavaOne rockstar speaker for several years.

He is a regular contributor to the Java Magazine and wrote an article about device I/O for the November 2014 issue. He also authored an IoT video series in English and Portuguese on YouTube.com/java 

Java champions are an exclusive group of passionate Java technologists and community leaders who are community-nominated. Learn more about Java Champions.   

Tuesday Aug 18, 2015

Lizard Selfies with Raspberry Pi and Java EE

By guest blogger Roberto Marquez 

I wrote a Java EE app to manage the enclosure lighting for Chinese water dragons.  It uses servlets and cron to control relays attached to the Raspberry Pi GPIO pins.

Recently, I revisited the project to make use of the Raspberry Pi camera for lizard selfies.  The application listens for changes on GPIO pin connected to a momentary capacitive touch sensor.  When the selfie sensor pin goes high, a  photo is taken. Watch his demo series on YouTube. 

You can find the capacitive touch sensor on Adafruit. I did not find a Raspberry Pi camera cable in Fritzing, but a standard ribbon cable was used.  Here is a wiring diagram:

The source code is available on Github: https://github.com/onebeartoe/lizard-enclosure

The continuous integration server is here: https://onebeartoe.ci.cloudbees.com/job/lizard-enclosure/


Thursday Aug 06, 2015

Duke’s Choice Award Nomination is Open

Anyone in the Java community (including Oracle employees) is invited to nominate projects for the Duke's Choice Award. The award celebrates extreme innovation using Java technology.  The primary judging criteria for this prestigious award is innovation, putting small developer shops and individual developers on equal footing with global giants. Deadline for submission is August 24, 2015.


For over a decade, Duke's Choice Award winners have been announced at JavaOne, the premier Java technology conference and biggest gathering of Java community members. All 10 Duke's Choice Award winners will receive a free JavaOne full conference pass, a Duke statue, 2015 winner badge, inclusion in Oracle press release and corporate social media programs, and most rewarding of all, community recognition as an elite member of the Java ecosystem. Submit your nomination today! 

Tuesday Jul 21, 2015

Create Applications Using Docker

Want to know why Docker is such a popular platform? Docker is an open platform for developers and sysadmins to build, ship and run distributed applications. “It is the solution for developers to create applications and containers and ship them from development to production systems and have sysadmins run them in the production systems.” explains Roland Huss. 

In this Virtual Technology Summit (VTS) session, you will learn how to improve your integration tests with Docker, change your deployment to Docker containers and integrate Docker into your built systems.  He demonstrates all those key implementations in a hands-on live demo. 

During VTS sessions, the speakers are available to answer your questions in the chat window. It is free! Just register for this last event of the July series: APAC - July 23rd - 3pm to 6:30pm AU/SYD or July 22 from 9pm to midnight on July 23 pacific time   


Thursday Jul 16, 2015

Certification Discount!

To celebrate 20 years of Java, you can get 20% off any Java certification exam! Don’t miss this great opportunity to get Java certified and show off those new Java qualifications 

How to get started 

1. Find the Java exam that meets your skill level and experience.
2. Review exam preparation and topics.
3. Register at Pearson VUE. Use promotion code Java20 to receive the 20% discount.

This globally available offer is open until December 31, 2015. 


Tuesday Jul 14, 2015

Develop Non-Blocking Web Applications in Java

As Re Lai explains in this article, web applications have traditionally processed requests synchronously on the server side. Asynchronous programming is generally used on the client side. However, due to the advent of social networking, mobile devices, and the Internet of Things, non-blocking request processing on the server side has taken off as an important technique for meeting ever-more-daunting performance demands.

Lai's article explores the asynchronous support provided in several popular web frameworks--Servlet, JAX-RS, Spring MVC, Vert.x, and the Play Framework--for implementing non-blocking server-side request processing. He also discusses a sample application, todosapp, to show how to implement non-blocking web applications in these frameworks. Read Lai's article

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