Thursday Mar 19, 2015

Nighthacking at JavaLand

By Guest Blogger Stephen Chin

JavaLand is a community conference in Germany that is held in an amusement park. Come learn not only about Java and technology, but also about how geeks have fun!

We will have a live NightHacking stream running from the Java Community Area on Tuesday and Wednesday with an all-star interview line-up. Each day will also conclude with an exciting combined vJUG session, which you won’t want to miss!

Catch the action at http://nighthacking.com/, and follow the NightHacking Twitter handel for late-breaking updates.

Schedule (Time Zone is CET)



Tuesday Feb 17, 2015

Free Open Source Tools for Maven, HTML5, IoT, and Java EE

Are you struggling with being productive in Maven, HTML5 frameworks such as AngularJS, IoT hardware such as the Raspberry Pi, or Java EE? Do you want free, easy to use, out-of-the-box tools for quickly and efficiently developing all kinds of applications? You really need to give the NetBeans IDE a whirl! At the next Virtual Technology Summit,  OTN will show you the latest enhancements and cool features of the free, open-source NetBeans IDE, which are used around the world, from engineers at Boeing and NASA to Java architects such as James Gosling and Stuart Marks! This is one of four Java sessions of the OTN Virtual Technology Day. Other topics include JavaScript on the JVM, Java Application Monitoring and Java Wearables.

If you haven't looked at the NetBeans IDE lately, you'll be blown away by the fast speed and performance enhancements. If you are completely new to the NetBeans IDE, see how easy it is to get started and be productive. For example, did you know NetBeans can refactor all your code from Java SE 7 to Java SE 8? See how in this session, lead by NetBeans expert Geertjan Wielenga.

Virtual Technology Summits (VTS) are interactive, online events, sponsored by the Oracle Technology Network (OTN). VTSs are free, but you must register:

 • EMEA – 25 February  - 9:00 to 13:00 BST  REGISTER

APAC – 4 March  –  9:30 to 13:30 IST  REGISTER

Each OTN 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. 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. Please join us!

Thursday Jan 29, 2015

A Young Woman Innovator Programs with Java

Hania Guiagoussou is a passionate Java developer and a high school student in Dublin, California. She developed a "Water Saver" system to control the water usage in any garden or field. She just won third place and the prize of ten thousand dollars in the Digital Innovative Challenges organized by the ITC/Telecoms  

Q: When did you start programming?

Hania: I started programming at the age of nine. My dad is a computer engineer and he encouraged my brother and me to program. I wasn’t into programming until I went to a Java programming summer workshop at Oracle where I learned object oriented programming using Alice. If it weren't for Alice, I wouldn't be interested in programming. Alice was fun and inspired me to create animation projects. 

Q: What have you been programming lately?

Hania: My last project was a “Water Saver” system. It is an implementation of machine-to-machine communication that optimizes the use of water. I used sensors to capture soil humidity and surrounding temperature. The sensors are connected to a Raspberry Pi from where an intelligent agent collects and analyzes environmental data, then records it in Java objects. I first created the system for a science fair project in Pleasanton California. My  friend and I were going to do a project to study the impact of herbal tea on the human memory. However, returning from school one day after it rained a lot, I saw sprinklers on even though plants and the soil had enough water in the entire neighborhood. At that time the news channels were all talking about water restrictions because of the drought in California. I said to myself “I’ve got the idea for my science fair competition!” 

Q: And you won an award for it...

Hania: Along with my teammate, we received a few awards from the local engineering and science fair in March 2014. We won a special award sponsored by the local utility company and third place in the Computer Science, Maths and Engineering category from over 300 projects. In September 2014, I had an opportunity to compete in an African competition in Chad where I made it to the final round in the Digital Innovative Challenges organized by the ITC/Telecoms and Information Ministries under the sponsorship of the president of Chad and in partnership with the International Telecommunication Organization (ITU). I was the youngest participant in the finals. My project won third place and I won a generous prize of 5 million local francs (around 10 thousand US dollars). 

Q: How would you advise young girls to get started in programming?

Hania: That's a really a good question because girls are not really interested in Computer Science. In my Computer Science and Engineering class, there are only 10 percent girls. I think girls should just play with tools like Alice and create animations using characters and virtual worlds of their choice. I would love to have an opportunity to show girls of my age the satisfaction of programming.

Q: How easy was it for you to get started?

Hania: Before the Alice workshop, I was not interested to go beyond the “Hello, World” application. With Alice I used advanced blocks of codes that were easy to comprehend as I was manipulating real objects using object-oriented programming. I was able to use the Java programming language without knowing I was coding. I had to get introduced in a way that I could embrace, enjoy and innovate.

Q: What do you like about Java?

Hania: I like how you can program it once and it runs on different environments. For example, for the water saver project, the program we created was targeting embedded systems and was tested on Raspberry Pi. But we initially developed the code using NetBeans on a Window PC. We took the same program and ran it on a Linux Operating system on Mac. We then moved the same code to the Raspberry Pi and it runs fine without a single code change. I really like the fact that I can program one time, run on my personal computer then have it working on many other devices. Additionally, creating a client side program using Android to connect the embedded world with our day to day devices was the icing on the cake. I was very happy when from my mobile phone and tablet I launched a standard HTML browser and controlled my application remotely. 

Q: What would you like to do as a career? 

Hania: It has always been my dream to become a doctor. Now, I’d like to pursue medical studies and combine it with tele-medicine to remotely help people in rural areas in developing country where heath-care system is not very developed. I want to become an influential women who can bring positive changes in people’s live. I hope one day to build a bridge between doctors from the U.S., Canada, Europe  in order to help doctors in Africa communicate and exchange experiences with each other and prevent deathly diseases. 


Wednesday Jan 07, 2015

Attracting Women Speakers to Tech Conferences

Hear from Trisha Gee and Regina Ten Bruggencate as they share tips and tricks to help women and new speakers get started. They themselves are veteran speakers, members of program committees and community leaders for user groups and the Duchess organization, a community of technical women. 

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!

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 

Tuesday Sep 30, 2014

Life around the Java Hub

By Guest Blogger Timothy Beneke

At the Java Hub, Java’s flexibility was illustrated through a number of demos and displays. The message was clear: any Java developer can program in Java Embedded, so get your Raspberry Pi, connect it to your favorite device, and have fun with the Internet of Things (IoT). Aldebaran Robotics presented the friendly, 2-foot-tall, high-tech Nao robot, which can be used to enhance social awareness among autistic children. It danced, gave fist bumps, and seemed to drink in the attention. Across the room, a 3-D printer performed its magic, creating clones of Duke using JavaFX and Oracle Java Embedded.

James Gosling’s Wave Glider
A Liquid Robotics Wave Glider, with software developed by James Gosling, was also on display. Wave Glider, which looks like a souped-up yellow surfboard, is an autonomous water and solar-powered platform that transmits oceanic information such as water temperature and chemistry, wind speed, living organisms, and ocean bottom topography using Java SE Embedded applications for defense, oil and gas, and commercial and science customers.

Wave Glider has two parts, the surfboard-like “float” loaded with solar panels to recharge lithium-ion batteries—which resides at the ocean’s surface—and the sub, equipped with wings and tethered six meters below.  

Java Capabilities for the Green Power Industry

Alexander Belokrylov, product manager for Java ME Embedded, showed off Java ME capabilities for the green power industry, demonstrating how a Java ME Embedded application can control and monitor energy sources on a bicycle-driven electric generator.

“This is just a regular bicycle that illustrates the Raspberry Pi functionality,” explained Belokrylov. “Here it is connected to a bicycle, but it could also function with an irrigation system or many other things. The key point is that with Java ME and no libraries, we can run a fully autonomous system that connects to the cloud and measures energy usage. This is a small footprint and it can do a lot. We want Java developers to take this power and run with it!”

A Car that Knows You
Gary Collins, principal member of technical staff at Oracle, showed off the Telematics Car Demo from Sunday’s Java Strategy keynote, where a simulated electric car used Java ME Embedded data and JavaFX to aggregate and display temperature, speed, light sensor, crash, and other data. “The functionality enables a car to make adjustments for drivers,” explained Collins. “Suppose you drive this car from a rental agency and come back to rent it again. The agency can access data about you and adjust the car for temperature, seating position, preferred radio stations and many other applications. It’s a car that can learn your preferences and patterns.”


Playing with Java SE Embedded

Across from the car simulator, a row of Raspberry Pis interfaced with cubed light bulbs, Sphero Robotic Balls, XY-Plotters for drawing, and more. Attendees were invited to choose an “if statement” and then tweet, send an SMS message using a motion or light sensor, draw their names with a Java or Oracle logo or picture of Duke, and more. Light bulbs could light up in strange ways; a Sphero Ball could act crazy. It was all in the spirit of play to illustrate that Java SE Embedded offers a wide range of possibilities for developers who want to try out the IoT with Java 8.

    Friday Sep 26, 2014

    Strategy, Technical and Community Keynotes

    Start JavaOne with the Strategy and Technical keynotes to learn about the strategy and roadmaps as well as technical insights. The keynotes will be on Sunday, September 28 from 12:45p.m. to 3:00p.m., at Moscone North, Hall D. If you can't make it to JavaOne, Watch them live online

    In Strategy keynote, you will learn how to create the future with Java from leading Oracle experts in the Java development organization. They will showcase how Java is driving developer innovation, revolutionizing application development, and improving application services for IoT, enterprise architectures, and cloud computing.

    In the Technical keynote, the architects of Java 8 will give you their insights into this revolutionary release, and start to reveal what is coming in Java 9, Java 10, and beyond.

    [Read More]

    Friday Sep 19, 2014

    Robots, NetBeans IDE, and Raspberry Pi with James Gosling

    James Gosling is now chief software architect of the Wave Glider, the flagship product at Liquid Robotics. The Wave Glider is a self-propelled, autonomous marine robot that collects and transmits ocean data. The Wave Glider will be on display exclusively at the Java Hub in the JavaOne exhibit hall during the entire conference. 

    Since Gosling started at Liquid Robotics, he has re-architected the onboard software and refined a data-as-a-service cloud to provide direct, real-time access to ocean information. Java, which he invented, has played an increasing role in ocean data transmission and analysis.  

    “Being able to debug and profile robots out at sea is a truly life-altering experience,” Gosling explains. He uses a set of tools—consisting of editors, debuggers, and profilers—that are part of the NetBeans IDE. At the JavaOne 2014 NetBeans Community Day, he will present the session “James Gosling, Robots, the Raspberry Pi, and Small Devices” [UGF8907] on Sunday, September 28. He will also present “Debugging and Profiling Robots with James Gosling” [CON6699] on Wednesday, October 1. Geertjan Wielenga, Mark Heckler, José Pereda, Johannes Weigend, Shai Almog and Jens Deters will join him to discuss those two topics. 

    Join him as he closes out the JavaOne Community keynote with a fun, historical perspective of the genesis of Java, and a T-shirt toss! The Community Keynote will be held in the Marriott Marquis, Salon 7/8/9, on Thursday, October 2, 2014

    Wednesday Aug 20, 2014

    IoT: Wearables!

    Wearables are a subset of the Internet of Things that has gained a lot of attention. Wearables can monitor your infant's heartrate, open your front door, or warn you when someone's trying to hack your enterprise network. From Devoxx UK to Oracle OpenWorld to Devoxx4kids, everyone seems to be doing something with wearables. 

    In this video, John McLear introduces the NFC Ring. It can be used to unlock doors, mobile phones, transfer information and link people. The software for developers is open source, so get coding!

    If you are coming to JavaOne or Oracle OpenWorld, join us for Dress Code 2.0, a wearables meetup. Put on your best wearables gear and come hang out with the Oracle Applications User Experience team and friends at the OTN Lounge. We'll discuss the finer points of use cases, APIs, integrations, UX design, and fashion and style considerations for wearable tech development. There will be gifts for attendees sporting wearable tech, while supplies last.

    What: Dress Code 2.0: A Wearables Meetup

    When: Tuesday, 30-September-2014, 4-6 PM

    Where: OTN Lounge at Oracle OpenWorld

    IoT - Wearable Resources

    The IoT Community on Java.net

    Wearables in the World of Enterprise Applications? Yep.

    The Paradox of Wearable Technologies

    Conference: Wearable Sensors and Electronics (Santa Clara, USA)

    Devoxx4Kids Workshop for Youth: Wearable tech! (Mountain View, USA)


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