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• Scenario to illustrate how unit testing leads to better design

  - by Cocowalla

  For an internal training session, I'm trying to come up with a simple scenario that illustrates how unit testing leads to better design, by forcing you to think about things like coupling before you start coding. The idea is that I get the participants to code something first, without considering unit testing, then we do it again, but considering unit testing. Hopefully the code produced second time round should be more decoupled and maintainable. I'm struggling to come up with a scenario that can be coded quickly, yet can still demonstrate how unit testing can lead to better overall design.

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• In Joomla how to change the module mod_news_show_gk3?

  - by Emerson

  How can I change the mod_news_show_gk3 module to: Change the size of the post image. It uses the first image of the post, but it seems to not be resizing the image. Add an extra field: It is important to show in the main page what is the source of the post. I would then like to add an extra field during post editing time, namely "source", and then I would like to show the source below the title and before the text. Change the title size. Title is oversized and I couldn't find any way to decrease its size. Add a border around the section. Here is the address: http://central.antinovaordemmundial.com/ Thanks!

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• How to disable integrated webcam and still be able to use an external one

  - by alikasundara

  I am looking for a way to disable the webcam that is integrated into my laptop. The webcam is using uvcvideo module but I do not want to blacklist it since it is also being used by an external webcam I have. Is there any way of disabling the device itself without touching the modules list? This is how the webcams are listed by lsusb. The first one is an integrated one (It is identified by some apps as BisonCam NB Pro), the second one is the external Logitech C525: Bus 002 Device 004: ID 5986:0361 Acer, Inc Bus 003 Device 002: ID 046d:0826 Logitech, Inc. I have already checked BIOS - there is no way of disabling the webcam from there. Besides I would love to learn how to disable the device by ID anyway. Thanks!

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• Review before or after code commit, which is better?

  - by fifth

  Traditionally we performed code review before commit, I had an argument with my colleague today, who preferred code review after commit. First, here's some background, we got some experienced developers and we also got new hires with almost zero programming practice. we'd like to perform fast and short iterations to release our product. we all team members locate at same site. The advantages of code review before commit I've learned, mentor new hires try to prevent errors, failures, bad designs in early developing cycle learn from others knowledge backup if someone quits But I also got some bad experience, like low efficiency, some changes may be reviewed over days hard to balance speed and quality, especially for newbies some guy felt distrust As to post-review, I just knew little about this, but the most thing I worried about is the risk of losing control, people never review. Any opinions?

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• Best practices on separating Update and Draw on game loop

  - by Galvanize

  I've been working on my first HTML5 prototype and I found a good model that uses the regular Update and Draw loop we see in game dev. My question is, where does one end and the other begins? The question popped when I wanted to rotate and draw an Image, and I kept wondering if the work of changing the tranformation matrix (that I presume would be a bit expensive since it works on the whole pixel array of an image) and calculating the right position do draw it would characterize drawing work, or maybe not, since after that I may need to check for collision or something similar. Thinkig of it, seems like a silly question, but I would like some advice from more experienced developers. Where does does update ends and draw starts? Thanks in advance.

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• Building a Java CMS - What Existing Product Should I Use?

  - by walnutmon

  I'm a Java developer and in need of a CMS. I've spent a lot of time reading about, and tinkering with Liferay but am concerned that it doesn't cover two of my three major concerns I need to have many sites with individual domains HTML/CSS designers need to be able to design the website templates, look and feel, and layouts in their own tools without having to worry about writing scripts Site and page building APIs must be understandable so that a custom builder interface can be created and harness the CMS as opposed to hacking it Liferay nails the first bullet point, but the second two appear to be unsolved. Does anyone have experience with a Java CMS that does all three? Or have any idea how to approach the problem if none exists? Has someone has used a Java CMS and has been able to add this functionality give some insight?

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• Kubuntu 12.04 Won't let me search for wireless network

  - by Bora George

  Hello I'm running a brand new Kubuntu 12.04 single boot on my laptop, this is the first time I tried connecting to a wireless network. I tried using the network manager app allready on the task bar, but it doesn't let me tick the column to search for wireless networks, i.e. it will untick it automaticaly, it's dissabled by the software or the hardware, but I doubt it. I've tried searching the other questions on this site, and I can't see anything which helps with my problem. I know my wireless card is a Atheros AR9285, I don't think I installed any firmware for it, I'm sorry I can't offer more info but I'm completely new to networking and all that I have for the network to connect to are it's name and password of course.

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• XHTML fix solution republished

  - by TATWORTH

  As a post VS2010 SP1 installation activity, I am recompiling all my open source projects. The first is XHTMLFIX at http://xhtmlfix.codeplex.com/ This LGPL project has simple fixes to ASP.NET 2.0/4.0 to achieve XHTML compliance as measured by the W3C tests at http://validator.w3.org/ The XHTML project shows as untrue the commonly held belief that MVP or MVC are necessary for producing XHTML compliant web pages. Incidentally the other supposed advantage of MVP and MVC over web forms of easier testing is also very dubious as web forms can be tested by systems such as Selenium or WaTiN. I have used NUnitASP (alas sadly discontinued) with web forms and found it be more effective than unit testing MVP. Now if you prefer the MVP and / or MVC approach over Web forms then fine, that is your preferance. Now if you can find an example where ASP.NET 4.0 Web forms properly written do not produce XHTML compliant markup, I would be glad of your example and will look at ways of modifying the markup to be XHTML compliant.

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• Port forward based on external IP (for VPS hosting)

  - by Ben Alter

  What I want to do is to host a VPS. First, I'd like to set up a static IP address that forwards to my home IP address (so I can have more than one IP coming into my house). How can I do this without contacting my ISP (and is it even possible?; I don't care about paying for something that does this). Once I have the extra external IP address, how can I forward it to my VPS? How is my router supposed to differentiate between two separate external IP addresses?

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• Building dynamic bounding box hierachies.

  - by adivasile

  I've been reading about collision detection and I saw that the first part was a coarse detection which generates possible contacts using bounding box hierarchies. I understand the concept of splitting up your objects in groups, to speed up the detection phase, but I'm a little confused on how do you actually build the hierachy, more so on what criteria is used to group them together. Do I iterate through all the objects in the scene, and check the distance between them to see where they should be inserted in the tree? Do you know some resources that may shed some light on this topic for me?

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• nut (UPS) and SSL certificates

  - by Mausy5043

  Today I installed nut on my Ubuntu server (14.03). $ uname -a Linux boson 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux The UPS is connected to another server (called neutron), so I use nut-client to keep tabs on the UPS state. When I do sudo upsc [email protected] I get: Init SSL without certificate database battery.charge: 15 battery.charge.low: 10 battery.charge.warning: 50 battery.date: not set battery.mfr.date: 2012/11/27 : The first line of the output concerns me. I've not seen this on other installations of nut on Debian-based servers. What can I do to get rid of that line? EDIT: This "Init SSL without certificate database" is extra annoying because it is not part of the output of upsc and therefore I cannot grep it out.

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• Lubuntu 14.04 graphics problem on portege r100

  - by user286069

  first of all I have to say that I am not an expert. I have installed Lubuntu 14.04 on my Portege R100. The problem is that the graphics session does not start. Actually I can do all but only by command line. I try to start Xsession but nothing happens. Actually by typing startx the system stop to works. I read several threads on this topic but I did not find such kind of problem. There is something similar about portege r100 concerning lowgraphics mode but the porblem I have seems to be different because graphics session does not start. Can anyone help me ? Thank you Best

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• I want to record a screencast of a processing sketch

  - by nathanvda

  I have a created a music visualisation using Processing. I now want to convert that to a video, and the least obtrusive way I could think of is to record a screencast. I figured exporting Processing to video including audio, from within Processing itself, on ubuntu seemed an unsolved issue. Very hard and also could cause timing sync issues (since the music keeps running while images are captured). So move on to the screencast method. Dead-easy, I figured. But I was wrong. First hurdle was to find a way to record the sound from the audio (and not the mic). I did find a tutorial for that here. In short: use gtk-recordmydesktop and pulse audio. But, apparently, what happens: Processing does not use ALSA. When the sound is playing, it does not appear in the Pulse Audio mixer. How can I record the audio now?

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• The Gates Books&ndash;Finished

  - by MarkPearl

  Today I can finally say that I finished both of my Bill Gates books that had been lying on the shelf for several years. The books were… The Road Ahead (1995) Business @ the Speed of Thought (1999) I enjoyed “The Road Ahead”, purely because it was fun to read about someone looking into the future at technology, while I could read it looking at the past. In fact I was quite impressed with how much he got right and it was also nice to remember “The good old days”. Business @ the Speed of Thought was a harder read for me. The book still had some good insights, but was tough going at times (possibly because it was several hundred more pages than the first). All that being said, I can now finally place them back on the shelf knowing that they have been read.

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• Quick path jumping

  - by Sebastian P.

  I was just at a lecture, where I noticed the lecturer using a command (probably aliased) to jump to a specific folder. Example: ~/code$ j sciproj ~/projects/sciproj2011/$ This looked quite slick, so I started wondering: Is this a standard utility, and if so, what is the name? I have two theories as to how it works: It can both create, delete and jump to aliases directly from the command-line in the style of the example, without having to set up aliases in a configuration file or script or whatnot manually. It searches the home directory for a folder matching the name and jumps to it. The second option seems a bit slow, however, so the first would be preferred.

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• Should concrete classes avoid calling other concrete classes, except for data objects?

  - by Kazark

  In Appendix A to The Art of Unit Testing, Roy Osherove, speaking about ways to write testable code from the start, says, An abstract class shouldn't call concrete classes, and concerete classes shouldn't call concrete classes either, unless they're data objects (objects holding data, with no behavior). (259) The first half of the sentence is simply Dependency Inversion from SOLID. The second half seems rather extreme to me. That means that every time I'm going to write a class that isn't a simple data structure, which is most classes, I should write an interface or abstract class first, right? Is it really worthwhile to go that far in defining abstract classes an interfaces? Can anyone explain why in more detail, or refute it in spite of its benefit for testability?

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• making "xwacom set" changes permanent

  - by Philippe

  On my Thinkpad X220 Tablet the touch-finger works flawlessly but the pen is terribly miscalibrated. The calibration tool in System settings - Wacom tablet does not work. Instead, whenever I wan't to use the pen I first need to sudo xsetwacom set 'Wacom ISDv4 E6 Pen stylus' Area 0 0 27760 15690 These changes do not remain permanent. That is, after every reboot they are gone. How can I make the change permanent - I'm not looking for a startup scrip, I'd like to set the right area once for all. Any idea?

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• How much C/C++ knowledge is needed for Objective-C/iPhone development?

  - by BFree

  First, a little background. I'm a .Net developer (C#) and have over 5 years experience in both web development and desktop applications. I've been wanting to look into iPhone development for some time now, but for one reason or another always got side tracked. I finally have a potential project on the horizon, and I'm now going full steam ahead learning this stuff. My question is this: I haven't done any C/C++ programming since my schooling days, I've been living in managed land ever since. How much knowledge if any is needed to be successful as an iOS developer? Obviously memory management is something that I'll have to be conscious about (although with iOS 5 there seems to be something called ARC which should make my life easier), but what else? I'm not just talking about the C API (for example, in order to get the sin of a number, I call the sin() function), that's what Google is for. I'm talking about fundamental C/C++ idioms that the average C# developer is unaware of.

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• Cookie/money/point clicker game origin?

  - by gavenkoa

  I can't find myself origin of Clicker like games. It's where the goal is to gain points through clicks and acquired enhancement. There's only one strategy in the game - deciding how efficiently spend point on enhancement (see formulas). I've seen many games like this, but it seems that most don't have a home page or have an unknown publisher. Some well known games of this type: Candy Box Cookie Clicker Cow Clicker Who is first implemented this idea (not only clicking but with investment model - when player must decide what improve to faster gather points)?

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• Online Learning Library free BPM training for everybody partners, customers and freelancer!

  - by JuergenKress

  BPM Product Library - Special Topics Tab A portal to free resources to help you learn about Oracle BPM Employee Onboarding Process Accelerator Demo All organizations hire new employees, and helping new hires become productive immediately is important for the organization’s ROI and for the individual’s motivation as well. To do that, an organization needs to have a process in place to help determine what services the new hire needs, and to track that all of the activities needed to prepare for the new hire are performed on time. This video demonstrates how the Oracle BPM Employee Onboarding Process Accelerator helps ensure that new hires hit the ground running from their first day on the job SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Technorati Tags: BPM training,BPM education,process accelerator,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• 20 Years of Solaris - 25 Years of SPARC!

  - by Stefan Hinker

  I don't usually duplicate what can be found elsewhere.  But this is worth an exception. 20 Years of Solaris - Guess who got all those innovation awards!25 Years of SPARC - And the future has just begun :-) Check out those pages for some links pointing to the past, and, more interesting, to the future... There are also some nice videos: 20 Years of Solaris - 25 Years of SPARC (Come to think of it - I got to be part of all but the first 4 years of Solaris.  I must be getting older...)

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• Azure Florida Association: New user group announcement

  - by Herve Roggero

  I am proud to announce the creation of a new virtual user group: the Azure Florida Association. The missiong of this group is to bring national and internaional speakers to the forefront of the Florida Azure community. Speakers include Microsoft employees, MVPs and senior developers that use the Azure platform extensively. How to learn about meetings and the group Go to http://www.linkedin.com/groups?gid=4177626 First Meeting Announcement Date: January 25 2012 @4PM ET Topic: Demystifying SQL Azure Description: What is SQL Azure, Value Proposition, Usage scenarios, Concepts and Architecture, What is there and what is not, Tips and Tricks Bio: Vikas is a versatile technical consultant whose knowledge and experience ranges from products to projects, from .net to IBM Mainframe Assembler.  He has lead and mentored people on different technical platforms, and has focused on new technologies from Microsoft for the past few years.  He is also takes keen interest in Methodologies, Quality and Processes.

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• Weird keywords in google webmaster tools

  - by Argoron

  I just happened to check the keywords list on Google Webmaster Tools for my site, which is an educational content site about finance. To my big surprise, after the first keyword, which is 'finance', I found amongst the 20 highest ranked (!) entries words like: mysql, server, adobe, flash, player, homez. What (i'm tempted to add "the heck") does that mean ? Is that something I should worry about? If so, how did these get there and how can I eliminate these / avoid they get into that list ? Thanks very much in advance for your help

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• Background & Research Methods section (Writing an Article)

  - by sterz

  It is my first time writing an article on a software project. I am supposed to use ACM UbiComp paper format. I already have a structure that I should follow and there is a Background & Research Methods section after Abstract, Introduction, Related Work sections. I have browser through several articles, but some of them either dont have it, have only background section or have only research methods section. I am having hard time to find an article that has this section and moreover what I must write on here. My project is about Bluetooth location tracking and I do have the implementation and evaluation, so it is not something theoretical.

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• Content, MetaData and Taxonomy 2 Overview of the Data Layer

  This article is cross-posted from my personal blog. In DotNetNuke version 5.3, we introduced the concept of a centralized Content store, together with the ability to apply Taxonomies (categories) to the content. We have extended this in DNN 5.4 by completing the MetaData API as well as adding Folksonomy (user tags). In this series of blogs I will explain how developers can take advantage of these new features in their own extensions. In the first blog in this series I covered the Taxonomy Manager...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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