In this new article, JavaServer Faces (JSF) spec lead Ed Burns explains two kinds of model view controller (MVC) as part of the JSF framework. The article's goal is to show the continued commitment to JSF evolution and to clarify the complementary usages of these two view technologies.

The two kinds of MVC in question are UI component oriented MVC and action oriented MVC. This article first goes over these two different styles of MVC, then explains the rationale for filing a separate JSR for MVC 1.0 and explains how this new specification will relate to the next version of JSF. 

User group leaders from around the world meet once a year at JavaOne. Each year, they organize the Forum meeting the Sunday before JavaOne. Speakers and topics are vetted by community. Anyone attending JavaOne whether they belong to a user group or not are invited to those sessions. Make sure you arrive on time for the Forum on Sunday. It starts at 8:00am at Moscone West. Among the topics this year are NetBeans community and tools, Java EE and Glassfish update, lightning talks about productivity, Java tools for Maven and Java EE, free Java tools and how to teach Java. And you don't want to miss James Gosling. He will present his latest work on the Raspberry Pi, Robots and Small Devices. If you have not registered already.

Register by tomorrow Friday August 1, 2014 and take advantage of the Early Bird rate. It is a US $400 saving on registration!  

Nighthacking moves in! Join Stephen Chin as he interviews Java developers attending JavaOne. You will learn from fellow developers about ingenious ways to get your job done with the tools and technologies they use. Those interviews will be live at Java Hub during the whole conference and live streamed online.

The Hackergarten is where developers contribute to JSRs and open source projects. Whether you are a veteran contributor or a beginner, you are invited to participate for as long as you want. You can stay for less than an hour, several hours, a day, or the entire time of the conference. JSR contributors will be onsite to help. Topics include Java EE, Data Grids, Java SE 8 (Lambdas and Date & Time API) and OpenJDK. Java Champion Andres Almiray organizes Hackergarten at many conferences around the world. Check the hackergarten.net for events close to you!

What's that Java and the Internet of Things? Check out what's new with the platform and how it provides a great solution for the Internet of Things. Whether you are working in the industry or just want to do your own DIY projects. Stop by Java IoT Demo Showcase and learn what you can do with Java. The cool keynote demo will be there as well for all 3 days of the conference.

Learn how to use 3D Modeling with JavaFX 3D, Java Embedded, and 3D printing. You will experience the entire process from the modeling interface to the 3D printing of no less than the Duke. Computer scientist Michael Hoffer from the Goethe-Center in Germany will demo his 3D modeling and printing.

The scavenger hunt at the Java Hub will add a twist of fun to the discovery of Java technologies. The Java Hub will be located in the JavaOne Exhibit Hall at Hilton San Francisco Union Square.

Register today with the Early Bird rate to save $400 off the onsite price!  

This is your last chance to win a JavaOne trip. Submit a project video and code for the IoT Developer Challenge by this Friday, May 30.  12 JavaOne trips will be awarded to 3 professional teams and one student team. Members of two student teams will win laptops and certification training vouchers.

Ask your last minute questions on the coaching form or the Challenge forum. They will be answered promptly. Your project video should explain how your project works. Any common video format such as mp4, avi, mov is fine.

Your project must use Java Embedded - whether it is Java SE Embedded or ME Embedded - with the hardware of your choice, including any devices, boards and IoT technology. The project will be judged based on the project implementation, innovation and business usefulness. More details on the IoT Developer Challenge website 

Just for fun! Here is a video of Vinicius Senger giving a tour of his home lab, and showing his boards and gadgets.

Discover source code that can help you create a project for IoT Developer Challenge. These code samples are open source, available on Github and may be reused in your own project. 

Check out the Pi4J code to create a command from Twitter, to connect a camera, or sensors using I2C or any GPIO Raspberry Pi pins. Pi4J project is intended to provide a bridge between the native libraries and Java for full access to the Raspberry Pi.

You may want to create an interface for your project using JavaFX. There are simple steps to build a JavaFX interface.

Ask your questions on the forums and using the coaching form. Remember the deadline is in a week on May 30