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• Oracle ADF at Oracle OpenWorld 2012

  - by Shay Shmeltzer

  This year is going to be very busy for Oracle ADF developers who'll attend Oracle Open World. Check out the list of Oracle ADF related sessions, labs, demos and other Oracle ADF activities.  This list will help you not to miss any ADF related activity. We have over 50 ADF related sessions, multiple labs including new ones on ADF Mobile, Application Life Cycle Management and ADF in Eclipse, we'll have several demo booths where you can meet product managers, and we'll be featured in several keynotes as well. While we have several "beginners" sessions, you'll find that we have a lot of in-depth technical sessions and sessions that cover best-practices too. Of course, it is not just us product managers presenting about Oracle ADF, there are a lot of Oracle ADF sessions presented by customers, Oracle ACEs, and other developers. So you can learn from the experience of real life implementations. Note that the ADF content starts early on Sunday with a full set of Oracle ADF sessions arranged for you by the Oracle ADF Enterprise Methodology Group - so plan your trip accordingly and be there early Sunday morning. First thing on Monday morning, don't miss the keynote for Oracle ADF developers at 10:45 at the Marriott Marquis - Salon 8 - "The Future of Development for Oracle Fusion—From Desktop to Mobile to Cloud". We are also arranging a meet-up of developers using Oracle ADF at the OTN Lounge on Wed at 4:30pm - and we would love to meet you there - this will also give you an opportunity to meet other Oracle ADF users and members of the community. And after that we can all head over to the big Wed party to see Pearl Jam and Kings of Leon. One recommendation for those who are already registered - start planning your schedule and booking your place in the sessions now through the schedule builder. This will guarantee that you won't be left out of sessions you want to attend due room size limitations. Oracle OpenWorld 2013 will be a must attend event for serious Oracle ADF developers - don't miss it.

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• High level vs. low level programming. Do I really have to choose?

  - by EpsilonVector

  Every once in a while I'm asked in interviews which I like the best- low level or high level. It seems to me that the implicit message is that they are both a specialty and they want to know which direction I'm heading. The trouble is, I seem to like both. Low level is extremely challenging and often requires a great deal of esoteric knowledge. High level is where all the sexy things happen: applications that people use directly, results that can be easily demonstrated (showed off) in a way that is accessible to everybody, and you get to work with really advanced tools and interact with new technologies. I would really love to do both, even if it means alternating between them (I doubt there are jobs that will let me do both simultaneously), but I'm guessing that the industry rewards specialists more than generalists. Will it really be problematic career wise if I never choose one over the other? Is it practical to alternate between the two in the sense that if I were to leave a job doing one of them, I should experience no "friction" trying to get a job doing the other (assuming I'm reasonably in the loop)? Are there career opportunities where you get to do both? Do I really have to choose one over the other?

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• Laptop shuts down upon waking from suspend

  - by Bryan Head

  The computer enters suspend either by closing lid, choosing suspend from the top-right drop down, or hitting the power button and pressing suspend. It doesn't matter. I then attempt to wake the computer either by opening the lid (if it was closed) or hitting the power button. Again, doesn't matter. The computer will then immediately shutdown about 50% of the time. It seems to be more likely to shut down the longer it has been on suspend. I took a snapshot of /var/log/pm-suspend.log after a successfully resume and a shutdown. The only difference (outside of timestamps of course) was that a successful resume, after reporting the success of various suspend hooks, writes: Thu Jul 5 21:36:45 PDT 2012: performing suspend Thu Jul 5 21:37:10 PDT 2012: Awake. Thu Jul 5 21:37:10 PDT 2012: Running hooks for resume and then reports successful resume hooks. When it shuts down, the log ends at "performing suspend". I diffed the two files so I know this is the only difference. Thus, it looks like it's not even trying to wake up. Would love some ideas on this one. I've scoured the web but can't seem to find anyone else running into the same issue (it seems more common that the computer shuts down upon entering suspend, or only on hitting the power button to wake, and haven't seen any that are random like mine). I'll update with any requested information.

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• Lenovo Ideapad 205 and Ubuntu 12.04 LTS

  - by Oranges

  I just wanted to report one thing, because I know there are a lot of Ideapad S205 users out there, that had issues running Ubuntu on their Lenovo Ideapad S205 in the past. Lenovo Ideapad with Ubuntu 12.04 LTS: Everything works out of the box. I just installed it and everything, including the microphone, the webcam, the WLAN, the AMD E-350 CPU/GPU and the sound worked right away. In other words: Everything works. Even the AMD E-350 GPU works very well with the Open Source drivers and with the prop. drivers. The prop. drivers were automatically offered to me via Ubuntu itself. It works great. A long idea, written short: I love it. It's extremly stable and very fast. I am using the German version of the Idepad S205, combined with the 32bit version of Ubuntu. There is only one, single thing to keep in mind when installing Ubuntu on the S205: Plugin your USB/CD/DVD drive in the left USB-Port. I don't know why, but it only works with the USB-Port on the left side of the Netbook. This is only for installing Ubuntu. After it has been installed and updated successfully, all of the USB ports will work. Oranges - feedback on Lenovo S205 with Ubuntu 12.04 LTS.

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• Security Newsletter November Edition is Out

  - by Tanu Sood

  The November edition of the Security Inside Out Newsletter is now out. This month’s newsletter captures the highlights from Oracle OpenWorld. The conference registration broken all the past records and so did all Security related events and activities at OpenWorld. From Security keynotes, conference sessions, hands-on-labs, product demonstrations to the very successful Executive Edge @ Openworld: Chief Security Officer Summit. The main feature discuses the key topics and trends compiled from across all the Security related sessions. The newsletter also features an interview with Amit Jasuja, Senior Vice President, Security and Identity Management at Oracle. Amit discusses the key trends in the industry and how these have helped shape innovation in the latest release of Oracle Identity Management solution set. If you are looking at cloud, social and mobile and are concerned about security, you don’t want to miss this feature. As always, the newsletter captures both recent and upcoming Security and Identity Management events, conferences, training, news and more. So, if you haven’t done so, we recommend you subscribe to the Security Inside Out Newsletter today. We’d love to hear from you. Let us know some topics you’d like to see covered in the upcoming editions. Or just let us know how we are doing. We look forward to hearing from you.

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• XMLPad – a new tool in my developer utility belt

  - by jamiet

  Yesterday I was on the lookout for a free tool that would help me write XPath statements. I put a shout out on Twitter and Johan Barnard replied saying : Give XMLPad a try http://www.wmhelp.com/xmlpad3.htm I’m sure there are legions of developers out there that know all about XMLPad but I had never heard about it so I suspect some of you reading haven’t either. Today I downloaded it to give it a run out and I gotta say – I love it. I only used it to do one thing –constructing an XPath expression to point to a particular Configuration definition in a .dtsx file- and it allowed me to do that with consummate ease. The feature I particularly loved was that, similar to Google Suggest, it showed me results from my expression as I typed. Here is a screenshot of my XPath expression to find (and just try saying this in a hurry) the value of a property whose DTS:Name attribute equals ‘ConfigurationString’ of a Configuration definition where the value of that Configuration definition’s property whose DTS:Name attribute equals ‘ObjectName’, equals ‘BIConfig My XPath expression: /DTS:Executable/DTS:Configuration[DTS:Property[@DTS:Name=’ObjectName’]=’BIConfig’]/DTS:Property[@DTS:Name=’ConfigurationString’] and believe me, there was no way I would have been able to come up with that without a tool to help me! So, an easy tip for you – if you need to write XPath expression download XMLPad for free from http://www.wmhelp.com/xmlpad3.htm and see what it can do for you. That’s all. Its now Friday evening and I’m shutting down and relaxing before heading to the big game at Twickenham tomorrow (yes, I have a ticket ). Have a good one! @Jamiet

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• Fixed JavaScript Warning - Pin to Top of Page Using CSS Position [migrated]

  - by nicorellius

  I am new to this site, but it seems like the right place to ask this question. I am working on a noscript chunk of code whereby I do some stuff that includes a <p> at the top of the page that alerts the users that he/she has JavaScript disabled. The end result should look like the Stack Exchange sites when JavaScript is disabled (here is a screenshot of mine - SE looks similar except it is at the very top of the page): I have it working OK, but I would love it if the red bar stayed fixed along the top, upon scrolling. I tried using the position: fixed; method, but it ends up moving the p element and I can't get it to look exactly the same as it does without the position: fixed; modification. I tried fiddling with CSS top and left and other positioning but it doesn't ever look like I want it to. Here is a CSS snippett: <noscript> <style type="text/css"> p. noscript_warning { position: fixed; } </noscript>

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• Dirt Cheap DSLR Viewfinder Improves Outdoor DSLR LCD Visibility

  - by Jason Fitzpatrick

  If the excitement you felt about having a DSLR capable of shooting video wore off the second you took it outside and realized you needed an expensive add-on viewfinder to use it in sunlight, this cheap DIY viewfinder is for you. The digital video capabilities of new DSLR cameras are amazing and changing the way people interact with movie production. What’s not awesome, however, is how the LCD screen gets completely washed out in bright conditions and you almost always have to buy a $50+ aftermarket accessory to make the LCD functional under those conditions. Courtesty of the Frugal Film Maker we have the following video tutorial showing us how to turn a plastic container, a cheap dollar-store magnifying glass, a headphone ear cover, and some glue and hair ties into a dirt cheap LCD viewfinder. You’ll never have to squint or miss a shot because of bright lighting conditions again–even better yet, you’ll only spend a few bucks for the whole project. For step by step instructions in print form, hit up the link below. Homemade DSLR Viewfinder [Instructables via Make] Latest Features How-To Geek ETC How To Make Disposable Sleeves for Your In-Ear Monitors Macs Don’t Make You Creative! So Why Do Artists Really Love Apple? MacX DVD Ripper Pro is Free for How-To Geek Readers (Time Limited!) HTG Explains: What’s a Solid State Drive and What Do I Need to Know? How to Get Amazing Color from Photos in Photoshop, GIMP, and Paint.NET Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Bring the Grid to Your Desktop with the TRON Legacy Theme for Windows 7 The Dark Knight and Team Fortress 2 Mashup Movie Trailer [Video] Dirt Cheap DSLR Viewfinder Improves Outdoor DSLR LCD Visibility Lakeside Sunset in the Mountains [Wallpaper] Taskbar Meters Turn Your Taskbar into a System Resource Monitor Create Shortcuts for Your Favorite or Most Used Folders in Ubuntu

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• Researching runtime technologies (Xmas fun with HTML5)

  - by Eric Nelson

  The Internet Explorer 9.0 team just posted about Pirates love Daises. This is a showcase game for the power of HTML 5 running inside IE 9.0 – and the author has done a fantastic job (you can get more details from Grant’s blog post). A game developer is an ISV (Independent Software Vendor) – a B2C  ISV. In my role I don’t (typically) work with B2C ISVs, hence a reasonable question is “Why blog about it?”. I think applications like this demonstrate the power of HTML 5 and IE9 for delivering really rich user experiences which have the promise of working cross browser and cross platform - in the future as HTML5 capable browsers become the norm. Microsoft is investing heavily in implementing a great “run time” in IE9 if cross platform is an important requirement for your UX. And the other reason for blogging this… it is nearly Xmas and we all should be having a little more fun on the run in. Hence you can play with confidence that your defence to your manager is “I’m just researching a powerful runtime that Microsoft is working on which could be significant to our future B2B product directions” Play now (Needs HTML 5 browser such as IE9) Related Links: To install IE9 Beta or the Preview (which won’t replace your existing IE) check our the IE9 TestDrive center. Learn about our other important UX runtime with the on-demand recordings of the Silverlight FireStarter event. If you want FREE help with new technologies from Microsoft, sign up to Microsoft Platform Ready.

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• #TechEd 2010

  - by T

  It has been another fantastic year for TechEd North America.  I always love my time here.  First, I have to give a huge thank you to Ineta for giving me the opportunity to work the Ineta booth and BOF’s (birds of a feather).   I can not even begin to list how many fantastic leaders in the .Net space and Developers from all over I have met through Ineta at this event.  It has been truly amazing and great fun!! New Orlean’s has been awesome.  The night life is hoppin’.  In addition to enjoying a few (too many??) of the local hurricanes in New Orleans, I have hung out with some of the coolest people  Deepesh Mohnani, David Poll, Viresh, Alan Stephens, Shawn Wildermuth, Greg Leonardo, Doug Seven, Chris Willams, David Carley and some of our southcentral hero’s Jeffery Palermo, Todd Anglin, Shawn Weisfeld, Randy Walker, The midnight DBA’s, Zeeshan Hirani, Dennis Bottjer just to name a few. A big thanks to Microsoft and everyone that has helped to put TechEd together.  I have loved hanging out with people from the Silverlight and Expression Teams and have learned a ton.  I am ramped up and ready to take all that knowledge back to my co-workers and my community. I can not wait to see you all again next year in Atlanta!!! Here are video links to some of my fav sessions: Using MVVM Design Pattern with VS 2010 XAML Designer – Rockford Lhotka Effective RIA: Tips and Tricks for Building Effective Rich Internet Applications – Deepesh Mohani Taking Microsoft Silverlight 4 Applications Beyond the Browser – David Poll Jump into Silvelright! and become immediately effective – Tim Huckaby Prototyping Rich Microsoft Silverlight 4 Applications with MS Expression Blend + SketchFlow – David Carley Tales from the Trenches: Building a Real-World Microsoft Silvelright Line-of-Business Application – Dan Wahlin

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• Can Foswiki be used as a distributed Redmine replacement? [closed]

  - by Tobias Kienzler

  I am quite familiar with and love using git, among other reasons due to its distributed nature. Now I'd like to set up some similarly distributed (FOSS) Project Management software with features similar to what Redmine offers, such as Issue & time tracking, milestones Gantt charts, calendar git integration, maybe some automatic linking of commits and issues Wiki (preferably with Mathjax support) Forum, news, notifications Multiple Projects However, I am looking for a solution that does not require a permanently accesible server, i.e. like in git, each user should have their own copy which can be easily synchronized with others. However it should be possible to not have a copy of every Project on every machine. Since trac uses multiple instances for multiple projects anyway, I was considering using that, but I neither know how well it adapts to simply giting the database itself (which would be be easiest way to handle the distribution due to git being used anyway), nor does it include all of Redmine's feature. After checking http://www.wikimatrix.org for Wikis with integrated tracking system and RCS support, and filtering out seemingly stale project, the choices basically boil down to Foswiki, TWiki and Ikiwiki. The latter doesn't seem to offer as many usability features, and in the TWiki vs Foswiki issue I tend to the latter. Finally, there is Fossil, which starts from the other end by attempting to replace git entirely and tracking itself. I am however not too comfortable with the thought of replacing git, and Fossil's non-SCM features don't seem to be as developed. Now before I invest too much time when someone else might already have tried this, I basically have two questions: Are there crucial features of Project Management software like Redmine that Foswiki does not provide even with all the extensions available? How to set Foswiki up to use git instead of the perl RcsLite?

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• Facebook and flash - why doesn't facebook recognise that I have flash installed?

  - by jaminday

  For some reason when I try to upload photos to facebook from the website, it tells me I need to upgrade my flash player: I definitely have flash installed, as can be seen in the picture, and working fine in youtube etc. My question is two-fold: 1) Does anyone know if this a problem with the version of flash I'm running, Ubuntu, or facebook itself? I get the same problem in Chrome and Firefox, so I know it's not the browser. 2) Is there a workaround or fix for this? As far as I can tell I'm running the very latest flash (on 64-bit Ubuntu 10.10) - but maybe that's the problem? Note: Before everyone starts jumping up and down about using Shotwell or Digikam or some such to upload photos to facebook, I know about these (and do use Shotwell at times). Unfortunately Shotwell only lets you upload to a Profile, but doesn't (as far as I can tell) let you upload to a facebook Page of which I am an administrator, so I am forced do it through the website. Using the simple uploader as seen in the first picture is horribly slow and tedious, and often times out while uploading. Of course if anyone knows of any alternate ways to upload to facebook pages I'd love to hear 'em!

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• Good ruby book with exercises? [closed]

  - by watabou

  I find that I learn the best with a book that has a number of exercises at the end of each chapters. A great example of this is C++ Primer Plus by Stephen Prata or Scientific Programming with Python or the Horstmann Java books. All of those books have a number of programming exercises at the end tailored to that specific chapter. I love the styles of those book and was wondering if there is anything similar for Ruby. I've extensively searched google for this and people have been suggesting different stuff like different websites like Ruby Koans and LRTHW but honestly, I've tried those and they aren't for me. I taught myself Python with the the Hard Way book and to be honest, it's not for me. Now, forgive me if I'm blunt but does anyone have a Ruby programming BOOK (i.e. not a website), that has EXERCISES in it? I do NOT want a website, unless the book is only or is freely available online by the author, similar to the Hard Way books. I would say that I'm a intermediate level programmer with only some Ruby experience but if you know of a beginner book on Ruby, that is fine too. Thanks in advance, I would really really appreciate the help.

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• Ubuntu installation on Windows , I can't find my way back.

  - by Poofs

  So recently I have installed Ubuntu as an OS in addition to my Windows because it looked good and I have used it in the past and I liked it. Before I installed Ubuntu, they (the website) have given me a help list that shows that I will have the option of having Windows aside to Ubuntu (dual install), while I work with the Ubuntu OS. They told me that if I either put it in a CD or USB drive, I'll be okay. So there I was, installing Ubuntu, saving the Ubuntu file on my USB drive first, then afterwards clicking it and therefore proceeded to install. The problem is once I installed Ubuntu, it directed me to the 'login' page without giving me an option for dual-installing (you know, the language portion and so on). Now I tried both to suspend and shut off, and it seems like I cannot access my Windows files/account anymore and it really is unfortunate. Now I am FREAKING out, because this is a shared computer that my family uses (it's like a main computer in the house) and everyone's files are on this. It is extremely crucial for me to get these Windows files back because if I don't, my life will end tonight. Please, if someone can help me, I will love you forever. Please just help me, this is urgent. I'm sure a lot of people have experienced this too, but I have found nothing on the website helpful for me as Ubuntu is a very new thing for me. Thanks everyone! :)

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• Designing a Content-Based ETL Process with .NET and SFDC

  - by Patrick

  As my firm makes the transition to using SFDC as our main operational system, we've spun together a couple of SFDC portals where we can post customer-specific documents to be viewed at will. As such, we've had the need for pseudo-ETL applications to be implemented that are able to extract metadata from the documents our analysts generate internally (most are industry-standard PDFs, XML, or MS Office formats) and place in networked "queue" folders. From there, our applications scoop of the queued documents and upload them to the appropriate SFDC CRM Content Library along with some select pieces of metadata. I've mostly used DbAmp to broker communication with SFDC (DbAmp is a Linked Server provider that allows you to use SQL conventions to interact with your SFDC Org data). I've been able to create [console] applications in C# that work pretty well, and they're usually structured something like this: static void Main() { // Load parameters from app.config. // Get documents from queue. var files = someInterface.GetFiles(someFilterOrRegexPattern); foreach (var file in files) { // Extract metadata from the file. // Validate some attributes of the file; add any validation errors to an in-memory // structure (e.g. List<ValidationErrors>). if (isValid) { var fileData = File.ReadAllBytes(file); // Upload using some wrapper for an ORM or DAL someInterface.Upload(fileData, meta.Param1, meta.Param2, ...); } else { // Bounce the file } } // Report any validation errors (via message bus or SMTP or some such). } And that's pretty much it. Most of the time I wrap all these operations in a "Worker" class that takes the needed interfaces as constructor parameters. This approach has worked reasonably well, but I just get this feeling in my gut that there's something awful about it and would love some feedback. Is writing an ETL process as a C# Console app a bad idea? I'm also wondering if there are some design patterns that would be useful in this scenario that I'm clearly overlooking. Thanks in advance!

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• The Splendiferous Array of Culinary Tools [Infographic]

  - by ETC

  If your geeking out extends from the workbench to the kitchen counter, you’ll love this swanky infographic detailing the families of utensils in your kitchen drawers and cupboards. The poster showcases everything from scissors to strainers in a retro-style poster. If you can find a culinary tool in your kitchen that isn’t on the chart then you’re obviously a culinary wizard of the highest order. You can hit up the link below to check out the poster in full-size and downloadable glory or head over to the design company that created it here (and pre-order a printed copy for your kitchen). A Complete Guide to Your Kitchen Tools [Fast Co. Design via Design Sponge] Latest Features How-To Geek ETC How to Enable User-Specific Wireless Networks in Windows 7 How to Use Google Chrome as Your Default PDF Reader (the Easy Way) How To Remove People and Objects From Photographs In Photoshop Ask How-To Geek: How Can I Monitor My Bandwidth Usage? Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware The Splendiferous Array of Culinary Tools [Infographic] Add a Real-Time Earth Wallpaper App to Ubuntu with xplanetFX The Citroen GT – An Awesome Video Game Car Brought to Life [Video] Final Man vs. Machine Round of Jeopardy Unfolds; Watson Dominates Give Chromium-Based Browser Desktop Notifications a Native System Look in Ubuntu Chrome Time Track Is a Simple Task Time Tracker

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• 5 Ways Microsoft Can Improve the Windows 8 Start Screen

  - by Matt Klein

  After having used Windows 8 over the past few months, we’ve found a few ways Microsoft could immediately improve the Start Screen to make it less disorienting and more usable, not only for tablets but desktops and laptops as well. It’s safe to say that the one thing Windows 8 doesn’t lack is criticism. Since the Consumer Preview debuted in February, it has proven to be one of the most polarizing Windows releases ever. But regardless of whether you love or hate it, Windows 8 is where Microsoft’s venerable operating system is headed. Portable computing is here to stay and if the company is to survive, let alone remain relevant, it has to change, adapt, embrace, and extend. Perhaps the single most universally controversial change to Windows is Microsoft’s decision to remove the Start button (or orb, if you’ve moved beyond XP) and with it, what we know to be the Start Menu. In their place we now have a Start hot corner (a workable alternative) and the newly redesigned Metro Start Screen. The Start Screen is, if nothing else, different. Beyond a doubt, there has not been such a radical redesign of Windows’ Start functionality since it went to a two-column design with a nested “All Programs” menu in Windows XP. The Start Screen can be a little jarring because it requires users to not only relearn what they’ve known for nearly two decades but to also rethink the way they interact with Windows. However, the Start Screen maintains its core elements: a Start “menu”, a place for all installed programs (All apps), and a search pane. The Start Screen is attractive, clean, bold, and very imperfect. Here are five changes we’d like to see in the Start Screen before Windows 8 goes gold … How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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• Silverlight Cream for May 24, 2010 -- #868

  - by Dave Campbell

  In this Issue: Victor Gaudioso, Weidong Shen, SilverLaw, Alnur Ismail, Damon Payne, and Karl Erickson. Shoutout: Tim Greenfield posted his slides and materials (not the padlock yet) from Portland Code Camp: Rx for Silverlight at Portland CodeCamp András Velvárt posted his material from his User Group talk: 20 Silverlight 4 demos in one zip file From SilverlightCream.com: New Silverilght Video Tutotial: How to Build Your Very Own Tutorial Cam Do you like the video Victor Gaudioso has of himself in his tutorials? well... in this one, he explains how to go about doing just that for yourself! A Sample Silverlight 4 Application Using MEF, MVVM, and WCF RIA Services - Part 1 Weidong Shen has part 1 of a new series up on Code Project about Siverlight, MVVM, MEF, and WCF RIA Services. Silver Spot Light - Silverlight 4 SilverLaw posted a control to the Expression Gallery and I have to agree with his comment "You' ll love to switch it on and off & on and off & on and off ... ;-)" A Distributable (.exe) Silverlight OOB Application Alnur Ismail has a step-by-step post up on building an OOB app deployable in an exe file. You'll need a file from a post by Tim, but there's a link in the post. DataContract based Binary Serialization for Silverlight Damon Payne serves up on a promise to post about a subject he's been discussing: DataContract based Binary Serialization for Silverlight... and he's writing about the process he followed, plus all the code is available. Creating a Custom Out-of-Browser Window in Silverlight 4 Karl Erickson at the Silverlight SDK blog discusses OOB visualization effects... what you can and can't do, and what limitations you're up against. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• ubuntu software center not working after update

  - by HOS

  today I'm updated my Ubuntu (I have KDE Desktop installed on it before) & After update , my Ubuntu software center said : items cannot be installed or removed until the package catalog is repaired .do you want to repair it ? and when I'm clicked on Repair ,after 2 seconds it says : the installation or removal of software package Failed , with this details : installArchives() failed: dpkg: dependency problems prevent configuration of kdm: kdm depends on libkworkspace4abi1 (= 4:4.8.5-0ubuntu0.1); however: Version of libkworkspace4abi1 on system is 4:4.8.5-0ubuntu0.2. kdm depends on kde-workspace-kgreet-plugins (= 4:4.8.5-0ubuntu0.1); however: Version of kde-workspace-kgreet-plugins on system is 4:4.8.5-0ubuntu0.2. dpkg: error processing kdm (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of kubuntu-desktop: kubuntu-desktop depends on kdm; however: Package kdm is not configured yet. dpkg: error processing kubuntu-desktop (--configure): No apport report written because the error message indicates its a followup error from a previous failure. No apport report written because the error message indicates its a followup error from a previous failure. dependency problems - leaving unconfigured Errors were encountered while processing: kdm kubuntu-desktop Error in function: dpkg: dependency problems prevent configuration of kdm: kdm depends on libkworkspace4abi1 (= 4:4.8.5-0ubuntu0.1); however: Version of libkworkspace4abi1 on system is 4:4.8.5-0ubuntu0.2. kdm depends on kde-workspace-kgreet-plugins (= 4:4.8.5-0ubuntu0.1); however: Version of kde-workspace-kgreet-plugins on system is 4:4.8.5-0ubuntu0.2. dpkg: error processing kdm (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of kubuntu-desktop: kubuntu-desktop depends on kdm; however: Package kdm is not configured yet. dpkg: error processing kubuntu-desktop (--configure): dependency problems - leaving unconfigured please help me i love Ubuntu & i want to repair it . Thanks

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• jQuery + Perl CGI to vb.net transition

  - by user1257458

  I've been developing oracle database-heavy "web applications" forever by building my html by hand, adding some jquery to handle ajax requests (html inserts for forms processing etc), and always did my server side stuff in perl cgi. I really love how easy it is to read some form input, execute some select statements through dbi (SO EASY), and generate HTML to be inserted by the jquery request. That's a web application to me. However, my new boss builds everything in visual studio 2010, vb.net, usually webforms. So, for work reasons, I now need to start developing in vb.net so it can be collectively maintained, and I'm just seeking advice on where to start learning/how to approach this. I know I could at least learn ASP.net and VB.net, and create a webform, have it read parameters, return HTML, etc. which would allow me to use my previously written HTML and client-side scripts (jQuery). Although- since we're moving heavily to mobile applications I really need to reduce client-side processing load. Is there any advantage to my boss' method? Thanks a ton.

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• Optimizing hash lookup & memory performance in Go

  - by Moishe

  As an exercise, I'm implementing HashLife in Go. In brief, HashLife works by memoizing nodes in a quadtree so that once a given node's value in the future has been calculated, it can just be looked up instead of being re-calculated. So eg. if you have a node at the 8x8 level, you remember it by its four children (each at the 2x2 level). So next time you see an 8x8 node, when you calculate the next generation, you first check if you've already seen a node with those same four children. This is extended up through all levels of the quadtree, which gives you some pretty amazing optimizations if eg. you're 10 levels above the leaves. Unsurprisingly, it looks like the perfmance crux of this is the lookup of nodes by child-node values. Currently I have a hashmap of {&upper_left_node,&upper_right_node,&lower_left_node,&lower_right_node} -> node So my lookup function is this: func FindNode(ul, ur, ll, lr *Node) *Node { var node *Node var ok bool nc := NodeChildren{ul, ur, ll, lr} node, ok = NodeMap[nc] if ok { return node } node = &Node{ul, ur, ll, lr, 0, ul.Level + 1, nil} NodeMap[nc] = node return node } What I'm trying to figure out is if the "nc := NodeChildren..." line causes a memory allocation each time the function is called. If it does, can I/should I move the declaration to the global scope and just modify the values each time this function is called? Or is there a more efficient way to do this? Any advice/feedback would be welcome. (even coding style nits; this is literally the first thing I've written in Go so I'd love any feedback)

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• Ruby or Python?

  - by Bobby Tables

  Hi all, This question is extremely subjective and open-ended. It might even sound like something I should just research for myself and make my own decision. But I'd like to put it out there and get some thoughts from others. Long story short - I burned out with the rat race and am on a self-funded sabbatical this year. Much of it is to take a break from the corporate grind and travel around, but I also want to play around with new technologies and do some self-learning projects, to stay up to speed on programming, and well - I just love tinkering with programming, when there's no pressure! Here's the thing: I am a lifetime C/C++/Java programmer. I'm a bit of a squiggly bracket snob since I've been working with this family of languages for my entire programming career. So I'd like to learn a language which isn't so closely syntactically related to this group. What I'm basically looking for is a language which is relatively general purpose, fun to learn, has some new concepts that are different from C++/Java, and has a good community. A secondary consideration is that it has good web development frameworks. A tertiary consideration is that it's not totally academic (read: there are real world jobs out there using it). I've narrowed it down to Ruby or Python. My impression of Ruby is that it is extremely web oriented - that the only real application of it is as a server side scripting language for doing web stuff (mainly Ruby on Rails). For Python I'm not so sure. TL;DR and to put it as succinctly as possible: which of these would be better for a C++/Java guy to learn to get some new perspectives on programming? And which is more open and general purpose and applicable to a wider set of applications? I'm leaning towards Ruby at the moment, but I worry to an extent that it looks like it's used as nothing but a server side web language.

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• How to Export Flash Animation Data

  - by charliep

  I'd love for my partner, the artist, to be able to animate using flash movieclips and timelines. Then I, the programmer, would like to read the raw Flash info and re-program it into my engine of choice (which happens to be Torque2D). The data I'd want is the bitmap images that were used in Flash, like the head and body the links between the images, like where the head connects to the body the motion data from the flash animation, like move, rotate (at what speed), shear, etc. for the head or arms or whatever. Is there any way to get this data? Here's what I know so far. There are tools like SWFSheet and Spriteloq that convert the entire flash animation into a frame by frame sprite animation (in a sprite sheet). This would take too much space in my case, so I'd like to avoid that. Re-animating on the fly would take much less texture memory. There is a PDF that describes the SWF file format but NOT the individual components like the movieclips. So anyone know of a library I can use, or how I can learn more about the movieclip components and whatnot? (more better tags: transform, export, convert)

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• Are You Using Facebook with an Encrypted Session Yet?

  - by The Geek

  If you’re geeky and keep up with all the tech news, you probably already know that Facebook added an SSL feature, but for everybody else: You can make your Facebook profile more secure by turning this option on, and here’s how to do it. All we’re going to do is head into the Facebook profile settings and then check a box that forces the use of SSL encryption whenever possible. Easy Latest Features How-To Geek ETC Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The How-To Geek Valentine’s Day Gift Guide Inspire Geek Love with These Hilarious Geek Valentines RGB? CMYK? Alpha? What Are Image Channels and What Do They Mean? Project M Brings Classic Super Smash Bro Style Gameplay to the Wii Now Together and Complete – McBain: The Movie [Simpsons Video] Be Creative by Using Hex and RGB Codes for Crayola Crayon Colors on Your Next Web or Art Project [Geek Fun] Flash Updates; Finally Supports Full Screen Video on Multiple Monitors 22 Ways to Recycle an Altoids Mint Tin Make Your Desktop Go Native with the Tribal Arts Theme for Windows 7

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• How to work with Firefox nightly build [minefield]

  - by anirudha

  Most of developer love Firefox for their plugin who support for making development easier and faster. many of us use Firefox nightly build aka minefield who update daily. there is a little problem in minefield that there is less plugin on addons site of mozilla for Firefox nightly [minefield]. a solution for this problem is that you need to install the plugin who you want in nightly build from the developer site instead of add-ons site of Mozilla. the reason for that is all many of popular plugin in development for support Firefox 4. How to install follow the thing as mine : go to minefield > addons or toolbar  > addons you see a list of plugin who is not suitable for minefield now go to more link of plugin who you want to get work in Firefox 4. When you click their you go to plugin page on addons site of mozilla or maybe redirect you to developer site. if they show you plugin page then go to developer site by click on link more about developer. now you find that on the developer site they give you the same version or maybe new then you found on mozilla addons site. install the plugin and restart the minefield. you see that most of plugin now work.

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