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• Adding an LOV to a query parameter (executeWithParams)

  - by shay.shmeltzer

  I showed in the past how you can use the executeWithParams operation to build your own query page to filter a view object to show specific rows. I also showed how you can make the parameter fields display as drop down lists of values (selectOneChoice). However this week someone asked me if you can have those parameter fields use the advanced LOV component. Well if you just try and drag the parameter over, you'll see that the LOV option is not there as a drop option. But with a little bit of hacking around you can achieve this. (without actual Java coding). Here is a quick demo:

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• Java Spotlight Episode 98: Cliff Click on Benchmarkings

  - by Roger Brinkley

  Interview with Cliff Click of 0xdata on benchmarking. Recorded live at JFokus 2012. Right-click or Control-click to download this MP3 file. You can also subscribe to the Java Spotlight Podcast Feed to get the latest podcast automatically. If you use iTunes you can open iTunes and subscribe with this link:  Java Spotlight Podcast in iTunes. Show Notes News Bean Validation 1.1 Java EE 7 Roadmap Java JRE Update 7u7 and 6u35 available. Change to Java SE 7 and Java SE 6 Update Release Numbers JCP 2012 Award Nominations Announced Griffon JavaFX Plugin Events Sep 3-6, Herbstcampus, Nuremberg, Germany Sep 10-15, IMTS 2012 Conference,  Chicago Sep 12,  The Coming M2M Revolution: Critical Issues for End-to-End Software and Systems Development,  Webinar Sep 30-Oct 4, JavaONE, San Francisco Oct 3-4, Java Embedded @ JavaONE, San Francisco Oct 15-17, JAX London Oct 30-Nov 1, Arm TechCon, Santa Clara Oct 22-23, Freescale Technology Forum - Japan, Tokyo Nov 2-3, JMagreb, Morocco Nov 13-17, Devoxx, Belgium Feature Interview Cliff Click is the CTO and Co-Founder of 0xdata, a firm dedicated to creating a new way to think about web-scale data storage and real-time analytics. I wrote my first compiler when I was 15 (Pascal to TRS Z-80!), although my most famous compiler is the HotSpot Server Compiler (the Sea of Nodes IR). I helped Azul Systems build an 864 core pure-Java mainframe that keeps GC pauses on 500Gb heaps to under 10ms, and worked on all aspects of that JVM. Before that I worked on HotSpot at Sun Microsystems, and am at least partially responsible for bringing Java into the mainstream. I am invited to speak regularly at industry and academic conferences and has published many papers about HotSpot technology. I hold a PhD in Computer Science from Rice University and about 15 patents. What’s Cool Shaun Smith’s Devoxx 2011 talk "JPA Multi-Tenancy & Extensibility" now freely available at Parleys.

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• Extracting the Layout of all the Data Forms from the Relational Database

  - by RahulS

  Today I came across a question from one of our clients that: "what members are used on each data form WITHOUT having to go through the report generated out of our Planning app". We worked with client on this and reached to a simple query. All the form related information is stored in the following tables: HSP_FORM HSP_FORMOBJ_DEF HSP_FORMOBJ_DEF_MBR HSP_FORM_ATTRIBUTES HSP_FORM_CALCS HSP_FORM_DV_CONDITION HSP_FORM_DV_PM_RULE HSP_FORM_DV_RULE HSP_FORM_DV_USER_IN_PM_RULE HSP_FORM_LAYOUT HSP_FORM_MENUS HSP_FORM_VARIABLES If we want to retrieve just the members included, we can concentrate on: HSP_OBJECT to get the Object_ID for form, Object_Type is 7 for forms. (Ex: Select * from HSP_OBJECT where OBJECT_TYPE = 7) HSP_FORMOBJ_DEF Find the OBJDEF_ID for a particular form HSP_FORMOBJ_DEF_MBR Use the above OBJDEF_ID to find the members: Here the Mbr_ID is the Id of the member and Query_Type is the Function like Idesc, Level0 etc and Sequce is you sequence, And the final table we can use is HSP_FORM_LAYOUT: Layout_Type: 0->Pov 1-> Page, 2->Row, 3->Col, DIM_ID is the dimension ID and Ordinal is position. Here is the Query: SELECT HSP_OBJECT.OBJECT_NAME AS 'Form',  HSP_OBJECT_2.OBJECT_NAME AS 'Dimension',  HSP_OBJECT_1.OBJECT_NAME AS 'Member',  HSP_FORMOBJ_DEF_MBR.QUERY_TYPE FROM  <DatabaseName>.dbo.HSP_FORM_LAYOUT HSP_FORM_LAYOUT,  <DatabaseName>.dbo.HSP_FORMOBJ_DEF HSP_FORMOBJ_DEF,  <DatabaseName>.dbo.HSP_FORMOBJ_DEF_MBR HSP_FORMOBJ_DEF_MBR,  <DatabaseName>.dbo.HSP_MEMBER HSP_MEMBER,  <DatabaseName>.dbo.HSP_OBJECT HSP_OBJECT,  <DatabaseName>.dbo.HSP_OBJECT HSP_OBJECT_1,  <DatabaseName>.dbo.HSP_OBJECT HSP_OBJECT_2 WHERE  HSP_OBJECT.OBJECT_ID = HSP_FORMOBJ_DEF.FORM_ID AND  HSP_FORMOBJ_DEF_MBR.OBJDEF_ID = HSP_FORMOBJ_DEF.OBJDEF_ID AND  HSP_MEMBER.MEMBER_ID = HSP_FORMOBJ_DEF_MBR.MBR_ID AND  HSP_OBJECT_1.OBJECT_ID = HSP_MEMBER.MEMBER_ID AND  HSP_OBJECT_2.OBJECT_ID = HSP_MEMBER.DIM_ID AND  HSP_FORM_LAYOUT.DIM_ID = HSP_MEMBER.DIM_ID AND  HSP_FORM_LAYOUT.FORM_ID = HSP_FORMOBJ_DEF.FORM_ID AND  ((HSP_OBJECT.OBJECT_TYPE=7)) ORDER BY HSP_OBJECT.OBJECT_NAME  Concentrate on Test1 data form and Actual Layout of it as follows: Corresponding Query_type for few of the functions: 9  for Idesc, 3  for Ancestors, -9 for ILvl0Des, 8  for Desc, 4  for IAncestors Its just a basic idea you can do lot on the basis of this. Cheers..!!! Rahul S. http://www.facebook.com/pages/HyperionPlanning/117320818374228

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• Security in Robots and Automated Systems

  - by Roger Brinkley

  Alex Dropplinger posted a Freescale blog on Securing Robotics and Automated Systems where she asks the question,“How should we secure robotics and automated systems?”.My first thought on this was duh, make sure your robot is running Java. Java's built-in services for authentication, authorization, encryption/confidentiality, and the like can be leveraged and benefit robotic or autonomous implementations. Leveraging these built-in services and pluggable encryption models of Java makes adding security to an exist bot implementation much easier. But then I thought I should ask an expert on robotics so I fired the question off to Paul Perrone of Perrone Robotics. Paul's build automated vehicles and other forms of embedded devices like auto monitoring of commercial vehicles on highways.He says that most of the works that robots do now are autonomous so it isn't a problem in the short term. But long term projects like collision avoidance technology in automobiles are going to require it.Some of the work he's doing with his Java-based MAX, set of software building blocks containing a wide range of low level and higher level software modules that developers can use to build simple to complex robot and automation applications faster and cheaper, already provide some support for JAUS compliance and because their based on Java, access to standards based security APIs.But, as Paul explained to me, "the bottom line is…it depends on the criticality level of the bot, it's network connectivity, and whether or not a standards compliance is required."

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• Introducing the Documentation Workflows

  - by Owen Allen

  The how-to documents  provide end to end examples of specific features, such as creating a new zone or discovering a new system. We are enhancing the individual how-tos with documents called Workflows. These workflows are each built around procedural flowcharts that show these larger and more complex tasks. The workflow indicates which how-tos or other workflows you should follow to complete a more complex process, and give you a flow for planning the execution of a process. Over the coming days I'll highlight each of these workflows, and talk about the tasks that each one guides you through.

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• Neuerungen bei der Spezialisierung von VADs

  - by swalker

  Ab 1. November 2011 müssen VADs (Value Added Distributors) mit einer gültigen VAD-Vereinbarung für eine Spezialisierung nicht mehr die Kundenreferenz-Anforderungen erfüllen, die im Abschnitt zu den Geschäftskriterien aufgeführt sind. Die VADs müssen jedoch auch weiterhin alle Geschäfts- und Kompetenzkriterien in der entsprechenden Knowledge Zone erfüllen, bevor Ihre Spezialisierung anerkannt wird.

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• Best place to request Ubuntu for a minor improvement (In Unity dash search)

  - by mac

  Which is the best place to request Ubuntu for a minor improvement? My request feature is this : In Ubuntu dash when I search for "Upd" it gives me update manager and some other files. Now when I click enter by default the first entry will be selected. Can we make this a slightly better experience by highlighting the first item in search results which will be selected by default if we press enter - Just like in Gnome shell Search for upd in unity dash Search for upd in gnome-shell If you notice, update manager is highlighted by default in gnome shell and appears more intuitive. Can we implement the same in Unity ? Sorry for posting this in askubuntu. I just wanted to know which is the best place to discuss this. Thanks

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• JDeveloper and Upgrading Your JDK on Ubuntu

  - by Duncan Mills

  One little gotcha, if you, as I did recently, upgrade your JDK on Ubuntu then you may have to make sure you reflect that change in a couple of places for JDeveloper to stay happy. Assuming that you've installed from the jar version of the JDeveloper installer, then the JDK that you specified at install time will be recorded in the .jdev_jdk file in your home directory.However, be aware that this is not the only reference to the absolute path of the JDK. When you run the embedded WebLogic for the first time then the .jdeveloper/system11.1.1.3.37.56.60/DefaultDomain/bin/startWebLogic.shscript will be created, and associated with that, the setDomainEnv.sh script in the same directory. So, if you do want to change the JDK location be sure to change this file as well. (or of course do everything with symbolic links)

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• Tab Sweep - NetBeans book, JSF components, GlassFish load-balancing, community events, ...

  - by alexismp

  Recent Tips and News on Java EE 6 & GlassFish: • Java EE 6 Development with NetBeans 7 (new book) • Java EE Module Configuration Editors Draft Proposal (Eclipse) • ICEFaces downloads (includes NetBeans 7 plugin) • JRebel 4.0 - 33 million development redeploys prevented • Greenville JUG and SELF 2011 Trip Report • Load balancing with Glassfish 3.1 and Apache • GlassFish v3 Community Poster • Manik Web Statistic Tool, a Java EE 6 app to analyze http-access-log-file • Tomcat, WebSockets, HTML5, jWebSockets, JSR-340, JSON and more

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• JavaOne San Francisco 2013 Content Catalog Live!

  - by Yolande Poirier

  There will be over 500 technical sessions, BOFs, tutorials, and hands-on labs offered. Note that "Securing Java" is a new track this year. The tracks are:  Client and Embedded Development with JavaFX Core Java Platform Edge Computing with Java in Embedded, Smart Card, and IoT Applications Emerging Languages on the Java Virtual Machine Securing Java Java Development Tools and Techniques Java EE Web Profile and Platform Technologies Java Web Services and the Cloud In the Content Catalog you can search on tracks, session types, session categories, keywords, and tags. Or, you can search for your favorite speakers to see what they’re presenting this year. And, directly from the catalog, you can share sessions you’re interested in with friends and colleagues through a broad array of social media channels. Start checking out JavaOne content now to plan your week at the conference. Then, you’ll be ready to sign up for all of your sessions when the scheduling tool goes live.

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• Mobile and Social for Retail

  - by David Dorf

  I've got two speaking gigs in the next few weeks, so I thought I'd preview both here. First I'll be at eTail West on February 24th to talk about mobile. I'll be previewing a new study of how shoppers are using mobile phones. Here's a sneak peek at one of the slides: It should be no surprise that as more consumers adopt smartphones, more are finding ways to use them to help with shopping. Sometimes that's to find a store, download a coupon, or do price comparisons. I'll also be discussing the NRF Mobile Blueprint, and will walk through an example of mobile impacting the in-store experience. Retailers need to look upon mobile as the method of bringing the digital assets of e-commerce into the aisles to enhance shopping. On March 9th I'll be at NRF Innovate co-presenting with Jon Kubo of Wet Seal on social strategies. Jon is a retail innovation rock-star and I always learn something new from every conversation with him. Below is a another slide preview: I cheated a little on the top 10 most popular retailer pages by not including Victoria's Secret Pink. VC is already represented, so I didn't include them a second time. The most interesting statistic I found was that the average user spends 55 minutes on Facebook a day. Wow! I also decided to use the old "Like" and "Fan" icons just because I like them better (pun intended). Wet Seal has been collecting interesting statistics on liked products, so I hope Jon will share lots (I'm on a roll). Hope to see you at both events.

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• Pillar Axiom 600 Playbook für Partner

  - by swalker

  Erfahren Sie mehr über die Produktpositionierung und Funktionalität von Pillar Axiom 600. Das Pillar Axiom 600 Playbook (Vertriebsskript) unterstützt Sie beim Vertrieb, bei der Identifizierung und Qualifizierung von Vertriebs-Chancen, bei der Entwicklung von Vertriebsszenarien und bei der Abgrenzung zu Ihrem Wettbewerb. Setzen Sie Schwerpunkte bei der Verwendung Ihrer Ressourcen und erweitern Sie Ihr Angebot mit den OPN Specialized-Optionen, die Ihrem Unternehmen zur Verfügung stehen.

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• Visage

  - by Geertjan

  Raj, the Chennai JUG lead, together with others from that JUG, is interested in Visage, the JavaFX script language closely associated with Stephen Chin. He sent me the related lexer and parser and I started by having a look at them in the new version of ANTLRWorks being developed by Sam Harwell (who demonstrated it very effectively during JavaOne): Notice how the lexer and parser are shown in a tree structure, as well as in a cool syntax diagram. Next, I downloaded a bunch of JARs from here, so that packages such as from "com.sun.tools.mjavac" can be used, i.e., these are Visage-specific packages that aren't found anywhere except in the location below: http://code.google.com/p/visage/wiki/GettingStarted It turns out that there's also a Visage NetBeans plugin out there: http://code.google.com/p/visage/source/browse/?repo=netbeans-plugin Rather than recreating everything from scratch, i.e., generating ANTLR Java classes from the lexer and parser, I copied a lot of stuff from the site above and now a file Raj sent me looks as follows, i.e., basic syntax coloring is shown: For anyone wanting to seriously support Visage in NetBeans IDE, I recommend downloading the existing Visage NetBeans plugin above, rather than creating everything yourself from scratch, and then figuring out how to use that code in some way, i.e., add the JARs I pointed to above, and work on its build.xml file, which could be frustrating in the beginning, but there's no point in recreating everything if everything already exists.

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• Sign-On für APEX Anwendungen mit Kerberos

  - by Carsten Czarski

  Endbenutzer von APEX-Anwendungen arbeiten fast immer von einem Windows-PC aus - und sehr oft sind sie in einer Windows-Domäne eingeloggt. Da liegt es doch nahe, diesen Login auch für die APEX-Anwendung zu verwenden und sich nicht erneut anmelden zu müssen. Leider unterstützt APEX ein solches Verfahren nicht out-of-the-box. Nimmt man jedoch einige Open-Source Komponenten hinzu, so lässt sich die Anforderung leicht umsetzen. Niels de Bruijn von der MT AG hat ein Dokument zusammengestellt, welches die Vorgehensweise beschreibt: Single Sign-On für APEX Anwendungen mit Kerberos - schauen Sie einfach mal rein.

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• Can you say "Architect?"

  - by Bob Rhubart

  Photo by Jennifer Ortiz In his article, It's Time To Occupy IT, AIIM CEO and president John Mancini examines the evolution of "Systems of Engagement," the social technologies that are transforming how customers and employees relate to and interact with companies. Surviving the disruption that transformation entails is a matter of when, rather than if, a given organization embraces the change. But as Mancini points out, that transformation will require a "new breed" of IT professional: "While addressing this kind of challenge requires technical skills, it also requires process and customer acumen more often found in the business than in our IT departments. It requires a new type of information professional, whose expertise includes technical and domain knowledge, but who also has an idea of how the pieces of a process that spans the worlds of Systems of Record and Systems of Engagement should fit together. Gartner estimates that the demand for this new breed of information professional will grow by 50 percent by 2015." Though Mancini makes no reference to the title, the skills he desribes are those of the IT architect. While the specific definition of the role remains fodder for seemingly endless discussion and debate on various social networks and forums, the fact remains that the skills required for success in the evolving world of IT will increasingly involve a deep understanding of how all the pieces fit together.

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• Track Technical Blog Entries For JDeveloper

  New RSS Feed

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• Keeping Entitlements in Check

  - by Naresh Persaud

  Thanks for going the webcast on keeping entitlements in check. As a follow up, I have attached the slides to the webcast. The webcast will be available on demand shortly via IOUG.   A few key takeaways: Application security means applying both preventive and detective controls. Audit and security groups need the combination of both access certification and runtime dynamic authorization. Today, security policy is largely fragmented and brittle to change. The result is audit exposure for highly regulated applications.  By addressing the entire value chain of application security with a comprehensive platform approach, organizations can reduce the risk and improve compliance.    Ioug webcast entitlements in check View more PowerPoint from OracleIDM

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• Java Spotlight Episode 100: JavaOne 2012 Part 1

  - by Roger Brinkley

  An interview with Arun Gupta on Glassfish, Geertjan Wielenga on Netbeans, and 15 year JavaOne alumin Robert Treacy on events and happenings at JavaOne 2012. Right-click or Control-click to download this MP3 file. You can also subscribe to the Java Spotlight Podcast Feed to get the latest podcast automatically. If you use iTunes you can open iTunes and subscribe with this link:  Java Spotlight Podcast in iTunes. Show Notes Events Sep 30-Oct 4, JavaONE, San Francisco Oct 3-4, Java Embedded @ JavaONE, San Francisco Oct 15-17, JAX London Oct 30-Nov 1, Arm TechCon, Santa Clara Oct 22-23, Freescale Technology Forum - Japan, Tokyo Oct 31, JFall, Netherlands Nov 2-3, JMagreb, Morocco Nov 13-17, Devoxx, Belgium Feature InterviewGlassFish Community Event will be conducted on Sep 30, 11am - 1pm. This is a fantastic opportunity for GlassFish users to meet and engage with the GlassFish Team in a casual setting.http://glassfish-event12.eventbrite.com/ Netbeans eventshttp://netbeans.dzone.com/news/meet-experts-java-ee-javafx http://netbeans.org/community/articles/javaone/2012/netbeans-day-2012.html http://netbeans.org/community/articles/javaone/2012/index.html

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• JSF 2.2, Interceptors 1.2, and JPA 2.1 Replay: Java EE 7 Launch Webinar Technical Breakouts on YouTube

  - by arungupta

  As stated previously (here, here, and here), the On-Demand Replay of Java EE 7 Launch Webinar is already available. You can watch the entire Strategy and Technical Keynote there, and all other Technical Breakout sessions as well. We are releasing the next set of Technical Breakout sessions on GlassFishVideos YouTube channel as well. In this series, we are releasing JSF 2.2, Interceptors 1.2, and JPA 2.1. Here's the JSF 2.2 session: Here's the Interceptors 1.1 session: Here's the JPA 2.1 session: Enjoy watching them over the next few days before we release the next set of videos! And don't forget to download Java EE 7 SDK and try numerous bundled samples.

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• Architect: "Making Architecture Success Visible"

  Make architecture success visible.

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• Raspberry Pi and Java SE: A Platform for the Masses

  - by Jim Connors

  One of the more exciting developments in the embedded systems world has been the announcement and availability of the Raspberry Pi, a very capable computer that is no bigger than a credit card.  At $35 US, initial demand for the device was so significant, that very long back orders quickly ensued. After months of patiently waiting, mine finally arrived.  Those initial growing pains appear to have been fixed, so availability now should be much more reasonable. At a very high level, here are some of the important specs: Broadcom BCM2835 System on a chip (SoC) ARM1176JZFS, with floating point, running at 700MHz Videocore 4 GPU capable of BluRay quality playback 256Mb RAM 2 USB ports and Ethernet Boots from SD card Linux distributions (e.g. Debian) available So what's taking place taking place with respect to the Java platform and Raspberry Pi? A Java SE Embedded binary suitable for the Raspberry Pi is available for download (Arm v6/7) here.  Note, this is based on the armel architecture, a variety of Arm designed to support floating point through a compatibility library that operates on more platforms, but can hamper performance.  In order to use this Java SE binary, select the available Debian distribution for your Raspberry Pi. The more recent Raspbian distribution is based on the armhf (hard float) architecture, which provides for more efficient hardware-based floating point operations.  However armhf is not binary compatible with armel.  As of the writing of this blog, Java SE Embedded binaries are not yet publicly available for the armhf-based Raspbian distro, but as mentioned in Henrik Stahl's blog, an armhf release is in the works. As demonstrated at the just-completed JavaOne 2012 San Francisco event, the graphics processing unit inside the Raspberry Pi is very capable indeed, and makes for an excellent candidate for JavaFX.  As such, plans also call for a Pi-optimized version of JavaFX in a future release too. A thriving community around the Raspberry Pi has developed at light speed, and as evidenced by the packed attendance at Pi-specific sessions at Java One 2012, the interest in Java for this platform is following suit. So stay tuned for more developments...

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• Tab Sweep - Java EE wins, Prime Faces JSF, NetBeans, Jelastic for GlassFish, BeanValidation, Ewok and more...

  - by alexismp

  Recent Tips and News on Java, Java EE 6, GlassFish & more : • PrimeFaces 3.2 Final Released (primefaces.org) • Java EE wins over Spring (Bill Burke) • Customizing Components in JSF 2.0 (Mr. Bool) • Key to the Java EE 6 Platform: NetBeans IDE 7.1.x (OTN) • How to use GlassFish’s Connection Pool in Jelastic (jelastic.com) • Bean Validation 1.1 early draft 1 is out - time for feedback (Emmanuel) • Code artifacts published for Bean Validation 1.1 early draft 1 (Emmanuel) • Aprendendo Java EE 6 com GlassFish 3 e NetBeans 7.1 (Marcello) • JavaEE6 and the Ewoks (Murat)

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• "Editors' Choice Awards 2008"

  Honoring Leadership and Innovation in Technology

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• Mobile Shopping Alerts

  - by David Dorf

  Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} It’s been popular to offer coupons when people check-in to a store, because you’re catching them at the best possible time – they’re presumably in a shopping state-of-mind, and they’re at your store.  But wouldn’t it be even better to catch the people walking by your store and entice them to visit?  That’s the concept of geo-fences.  When people enter a geographic zone, they are sent a relevant text message alerting them about something nearby. I wrote about Placecast doing this for The North Face, noting that the messages were a unique combination of both offers and useful information about outdoor activities. After creating a program with European carrier O2, Placecast recently entered into an agreement to provide similar services to AT&T customers.  The ShopAlerts program allows AT&T customers in Chicago, Los Angeles, New York City, and San Francisco opt-in to receive these messages.  The program will be expanded nationwide as early as this summer. It’s a much better model for customers (and Placecast) to sign-up once with the carrier instead of each individual retailer, but I hope the messages aren’t restricted to advertising.  I really the like the idea of providing other information, such as nearby special events, races, and perhaps even things to avoid like construction.

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• RPi and Java Embedded GPIO: Java code to blink more LEDs

  - by hinkmond

  Now, it's time to blink the other GPIO ports with the other LEDs connected to them. This is easy using Java Embedded, since the Java programming language is powerful and flexible. Embedded developers are not used to this, since the C programming language is more popular but less easy to develop in. We just need to use a dynamic Java String array to map to the pinouts of the GPIO port names from the previous diagram posted. This way we can address each "channel" with an index into that String array. static String[] GpioChannels = { "0", "1", "4", "17", "21", "22", "10", "9" }; With this new dynamic array, we can streamline the main() of this Java program to activate all the ports. /** * @param args the command line arguments */ public static void main(String[] args) { FileWriter[] commandChannels; try { /*** Init GPIO port for output ***/ // Open file handles to GPIO port unexport and export controls FileWriter unexportFile = new FileWriter("/sys/class/gpio/unexport"); FileWriter exportFile = new FileWriter("/sys/class/gpio/export"); for (String gpioChannel : GpioChannels) { System.out.println(gpioChannel); // Reset the port unexportFile.write(gpioChannel); unexportFile.flush(); // Set the port for use exportFile.write(gpioChannel); exportFile.flush(); // Open file handle to port input/output control FileWriter directionFile = new FileWriter("/sys/class/gpio/gpio" + gpioChannel + "/direction"); // Set port for output directionFile.write(GPIO_OUT); directionFile.flush(); } And, then simply add array code to where we blink the LED to make it blink all the LEDS on and off at once. /*** Send commands to GPIO port ***/ commandChannels = new FileWriter[GpioChannels.length]; for (int channum=0; channum It's easier than falling off a log... or at least easier than C programming. Hinkmond

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