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• Why wont the LibGDX's main class Initialize on Android Launcher?

  - by BluFire

  So I was searching for different ways that could suit me in programming and came across LibGDX. Naturally I looked at the tutorial. As I was doing it, I was following the steps word for word, except naming the classes. In the end, I was able to create the desktop launcher for the game but not the android launcher. The following error is my error: Cannot instantiate the type Game (Game is the name of the class) I got the tutorial from http://steigert.blogspot.com.au/2012/02/1-libgdx-tutorial-introduction.html The link in the tutorial is the original but it uses jogl instead of lwjgl.

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• What is the aim of software testing?

  - by user970696

  Having read many books, there is a basic contradiction: Some say, "the goal of testing is to find bugs" while other say "the goal of the testing is to equalize the quality of the product", meaning that bugs are its by-products. I would also agree that if testing would be aimed primarily on a bug hunt, who would do the actual verification and actually provided the information, that the software is ready? Even e.g. Kaner changed his original definiton of testing goal from bug hunting to quality assesement provision but I still cannot see the clear difference. I percieve both as equally important. I can verify software by its specification to make sure it works and in that case, bugs found are just by products. But also I perform tests just to brake things. Also what definition is more accurate?

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• Fixing a bug while working on a different part of the code base

  - by imgx64

  This happened at least once to me. I'm working on some part of the code base and find a small bug in a different part, and the bug stops me from completing what I'm currently trying to do. Fixing the bug could be as simple as changing a single statement. What do you do in that situation? Fix the bug and commit it together with your current work Save your current work elsewhere, fix the bug in a separate commit, then continue your work [1] Continue what you're supposed to do, commit the code (even if it breaks the build fails some tests), then fix the bug (and the build make tests pass) in a separate commit [1] In practice, this would mean: clone the original repository elsewhere, fix the bug, commit/push the changes, pull the commit to the repository you're working on, merge the changes, and continue your work. Edit: I changed number three to reflect what I really meant.

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• Manage own framework

  - by Develman

  I have developed my own little framework for webpages. And for different websites I had to change some parts of the framework respectively developed new features / improvements. But in some cases I missed to copy the changes in the original framework code. How do you manage your frameworks? I copy the complete framework to a library folder in my projects folder structure. So I have a copy of the framework in every project. I would like to have it on one place in order to modify / improve / bugfix it once and then distribute it on the projects.

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• Can I use the test suite from an open source project to verify that my own 'compatible library' is compatible?

  - by Mark Booth

  The question Is it illegal to rewrite every line of an open source project in a slightly different way, and use it in a closed source project? makes me wonder what would be considered a clean-room implementation in the era of open source projects. Hypothetically, if I were to develop a library which duplicates the publicly documented interface of an open-source library, without ever looking at the source code for that library, could that code ever be considered a derivative work? Obviously it would need the same class hierarchy and method signatures, so that it could be a drop-in replacement - could that in itself, be enough to provoke a copyright claim? What about if I used the test suite of the open source project to verify whether my clean implementation behaved in the same way as the original library? Would using the test suite be enough to dirty my clean code? As should be expected from a question like this, I am not looking for specific legal advice, but looking to document experiences people may have had with this sort of issue.

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• How can I change resolution of "my video" in Skype?

  - by koushik

  I have a logitech Quickcam Pro 9000 connected to my ubuntu desktop and it works fine with Skype. However, Skype inputs and sends my video at the native (for the webcam I think) resolution of 1600 x 1200. I can confirm that the camera supports a wide variety of resolutions starting from 160 x 120 upto 1600 x 1200 (including e.g., 320 x 240, 352 x 288) using cheese. I can select these resolutions and see the output is appropriately scaled. Also, I don't see any improvements in smoothness of motion in the captured video so I suspect the original 1600 x 1200 is scaled down in the path somewhere. Is it possible to somehow to enable this scaling capability towards Skype?

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• How to redirect keeping the referral without server-side redirects?

  - by sergilazaro

  I have an HTML page hosted in Dropbox that some external websites link to. I want to redirect to a different page using only HTML or Javascript, since I can't use any server-side redirects. My goal is to be able to keep the original referral information for analytics. I've tried different ways but they all end up showing up with no referral. So if a blog that I have no control over (B) links to my public static page on Dropbox (D), and I want a redirect to the new page hosted elsewhere (N), I would like for the analytics for N to be shown as B, not D. Is that even possible?

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• How do I get the Java plugin in Firefox 3.6 working?

  - by interstar

  I have Ubuntu 10.10. I needed the Sun Java so I added Sun Oracle as supplier of packages and installed java-6. However, I haven't been able to persuade Firefox to use this Java for the browser. In fact I managed to turn off the original Java plugin (I can't remember exactly how) and I can't see any way to re-enable it. Ie. it doesn't appear in the "plugins" page of the Add-ons option. (I'm in Firefox 3.6.13) Any suggestions for how to re-enable Java in FF 3.6, and make sure it's using the Sun version? thanks phil

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• vmbuilder fails on chroot

  - by Bruce

  I am trying to install virtual machine with this command, but have no success: vmbuilder kvm ubuntu --verbose --suite precise --flavour virtual \ --part partitions.txt --ip 192.168.1.3 --hostname edb1 --arch amd64 \ -o --libvirt qemu:///system --user someuser --pass somepass \ --raw /home/virtual-machines/edb1.disk1.img \ --raw /home/virtual-machines/edb1.disk2.img \ --domain somedomain.com --mem 4096 --cpus 4 This is the error: ... I: Extracting xz-utils... I: Extracting zlib1g... W: Failure trying to run: chroot /tmp/tmp_JdKzu mount -t proc proc /proc , stderr: The host kernel is not original but modified by server provider. Why is the chroot needed for installation?

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• default mount point changed for external HD

  - by JhmL

  The default mount point for my external HD changed when upgrading from 13.04 to 13.10. Now the username is added as an extra level before the hd label. So it used to be /media/nameofhd and now it became /media/username/nameofhd This breaks a lot of links I have set up to this disk. I know that I can mount it manually and even automatically through /etc/fstab. What I want to know is why this behaviour changed and how I can change it back to the original? blkid and fdisk don't show anything suspicious. thx!

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• Taking web sites offline for demonstration on Galaxy Tablet

  This article is the Android sequel to the initial article about how to prepare an offline version of your web site for the purpose of demonstration or for exhibitions: Taking web sites offline for demonstration. If you didn't read the original article, please take some minutes (5 to 10 maximum) to gain a better understanding on the following. Thanks. I'm going to describe my steps using a Samsung Galaxy Tab 10.1 running on Ice Cream Sandwich (ICS - version 4.0.4) but I would assume that any other Android-based device will show more or less the same results. Transferring the prepared archive to your Android device

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• How to attract modders to your game?

  - by akaltar

  I am developing a game, but as I am working on it alone, the amount of content I can create is very limited. Because of that I want my game to be modded, for this purpose I am planning to create a complete modding API which would be exposed for lua scripting. I would also create tutorials to get people started. And the "Original" game would also be a "mod"(similar to Warcraft III maps) . My question is: What can a developer do to encourage modding of its game? PS: my game is a sandbox-ish multiplayer survival(most things are procedural).

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• Package version updates policy

  - by Sandman4

  Not sure if here it's the right place to ask, if not - please point me to the right direction. Let's say there's a package, for the sake of real-world example - bind9. In Precise and in Quantal it's version 9.8.1. The original developer (ISC) currently provide versions 9.8.4 which is a bugfix release in the 9.8 line, and 9.9.2 which is a "new features" branch. It looks like when a security issue is encountered, the specific bugfix is backported into 9.8.1. Now the question: Why maintainers don't just update to the latest bugfix release ? Why to backport only certain patches ? Is it intentionally or just there's no maintaner who would take the effort to update to the latest bugfix release ?

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• Google ajuste son algorithme pour contrer spams et contenus dupliqués et rejette les critiques sur la qualité de ses résultats

  Google ajuste son algorithme pour contrer spams et contenus dupliqués Et rejette les critiques sur la qualité de ses résultats En réponse aux critiques acerbes ayant récemment remis en question la qualité de ses résultats de recherche, Google entreprend de mettre à jour son algorithme pour contrer les sites de spam et de contenu dupliqué. Ces mises à jour devraient s'attaquer aux sites qui fraudent ou enfreignent les lignes de conduite tracées par Google et ce dans le but de s'accaparer les premières places des résultats. Sont particulièrement visés ceux qui copient le contenu des autres sites et/ou qui disposent d'un taux faible en contenu original. Matt Cutts, en ...

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• how to install ubuntu on imac

  - by leviathan

  i need help! im still new to this. i really need help, i have an imac.. (it's corrupted. when i try to open it, it shows a question mark alternating with a smiley) Model Family: iMac G5 Processor: 1.8GHz G5 (PowerPC 970fx) Manufacturer: Motorola of CPUs: 1 Size: 17" Finish: Matte Resolution: 1440x900 Backlight: CCFL Base Memory: 256MB PC3200 DIMM Max Memory: 2GB Memory Slots: 2 Brand: Apple Original OS: Mac OS X 10.3.5 i think it's vintage. haha. but i want to fix it. first, i think the hard drive is broken (pretty much corrupted) but i tried to install a xubuntu os on it because i don't have any other disc. but i think xubuntu is not compatible because i can't seem to get pass through the partitioning part. could some one please help..

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• OpenWorld Presentations and Anatomy of an RTF Template w/ files

  - by mdonohue

  For those who missed it ... or those who made it and couldn't get enough, check out the presentations delivered at OpenWorld: Overview and Roadmap The Reporting Platform for Oracle Applications Best Practices and even though it wasn't presented at OpenWorld an updated version of Anatomy of an RTF Template to include documented example files  (RTF template, Sub-Template and sample XML data) so you can re-use and play with the code directly.  Huge thanks to Tim and Hok-Min who did all the hard, original work on this example loaded with tips and tricks.  

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• Environment Award for AgroSense Java Farm Management System

  - by Geertjan

  Beating IBM's energy information system and Evoswitch's modular data central hall, Ordina's AgroSense, a farm management system for precision agriculture, received the prestigious IT Environment Award in the Netherlands yesterday. AgroSense is an agricultural services platform created in Java on the NetBeans Platform. It looks like this: Among other things, the team has been investigating whether and how to integrate JavaFX games into the AgroSense platform, as well as other JavaFX-oriented effects. Here's a pic of the red tulip award that the team received yesterday at a black tie award ceremony: The original announcement of the nominations for this competition in English can be read here. On Twitter, you can follow the AgroSense project here: @AgroSense Congratulations, AgroSense team, for this fantastic achievement!

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• Is it necessary to connect via Cisco VPN using my university account to go online?

  - by stankowait

  Original title: Bug with Xisco VPN - it it necessary to connect via Cisco VPN using my university-account in order to go online for all wireless networks In order to gain wireless access to my university network, I had to download and install the Cisco VPN client. It worked fine under 11.10 and did so for two weeks on 12.04. But since yesterday, I am unable to connect to my wireless network at home. First I have to connect via Cisco VPN using my university account. This is quite annoying and I'm unable to download apps via the software center when using the Cisco VPN client. I really don't know what happened, because it worked fine for two weeks and I did not change a thing.

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• Duplicating content from another site and adding value (summaries, statistics) - ranking and courtesy

  - by Krastanov

  I am working on a site that takes a governmental data base, provides a number of statistical and other summaries and also post the original data. However this data (mostly long pieces of text) is also published on the official governmental site (without the added value of summaries). Should I worry about google ranking due to this duplication? What is the preferred way to point to the official source of the information? There is no advertisement on my site. My site is ".com". The governmental site is ".bg".

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• Where does UBB store its settings?

  - by pjmorse

  We're moving a UBB forum from one host to another. (This is temporary; we're going to replace the forum eventually, but moving hosts has a higher priority.) We don't have a lot of experience with UBB, so we're feeling our way along in the dark. We got the UBB code installed on the new host, and we've done a dry-run database export from the original site to the new site. However, almost everything set in UBB's Control Panel section didn't come with the database export. If UBB doesn't store this data in the database, where is it stored? And if it is in the database, why would it not show up in a new forum when the database is imported? Did we somehow miss a table?

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• Browser problem for background-size property [migrated]

  - by Sangram

  I am using one picture as my background of header of my blog. CSS i have used is #header-wrapper { height:125px; padding: 0px; margin: 0; background: url("http://3.bp.blogspot.com/_lxBSX0YJV58/TOspWPI1r-I/AAAAAAAAA34/uw872WFS3ME/s1600/headerbg.jpg") top center no-repeat; background-size: 1120px 124px; } original width of an image is 990 px and i made it 1120px using property background-size: 1120px 124px; It looks okay in firefox 4 and Opera 11 but doesn't work in IE 7, Palemoon etc. image size does not increases and remains 990 px. You can check my blog HERE Any help...how can i make it compatible with all browsers ?

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• Trouble with Libreoffice 4.0.* in Ubuntu 12.04

  - by isotoper

  I have used Libreoffice Impress to give presentations at meetings for some time now. The current version of Libreoffice in Ubuntu 12.04 is 3.5.7.2 and this works fine for me. Recently, following a recommendation from a colleague, I installed Libreoffice 4.0.something using the Libreoffice PPA. This worked, but I discovered when going into slide show mode most of the graphics (line graphs) disappeared, even though they were perfectly visible in the original. Lettering, drawings, and pictures came over, but not the line graphs (which were originally inserted in .eps format most likely). With some effort I managed to uninstall the more recent version of Libreoffice, and reinstall the version in the Ubuntu repositories (3.5.7.2) and the graphs now appear as expected in the slide show mode. Is there any explanation for this behaviour?

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• Dump an arbitrary object To Html String

  - by Michael Freidgeim

  For debugging purposes me and my collegue wanted to dump details of the arbitrary object, and created function that uses LINQPad Dump functionality (thanks to http://stackoverflow.com/a/6035014/52277 and original http://linqpad.uservoice.com/forums/18302-linqpad-feature-suggestions/suggestions/447166-make-dump-extension-method-available-in-visual-s discussion)    public static string DumpToHtmlString<T>(this T objectToSerialize)        {            string strHTML = "";            try            {                var writer = LINQPad.Util.CreateXhtmlWriter(true);                writer.Write(objectToSerialize);                strHTML = writer.ToString();            }            catch (Exception exc)            {                Debug.Assert(false, "Investigate why ?" + exc);            }            return strHTML;        }You will need to add the linqpad executable as a reference in your project.TO DO similar in plain text ,look at https://github.com/ServiceStack/ServiceStack.Text StringExtensions , e.g. JsonSerializer/CsvSerializer or http://objectdumper.codeplex.com/

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• Mass Delete Using Gridview with Checkboxes

  This sample shows how to use a Gridview to delete multiple records all at once, having marked them with a Checkbox, and clicking one button, external to the Gridview, to delete them all As usual, here, we're using the Northwind Database. If you want to try this on your own Northwind database, adhere to this word of caution - "BACK IT UP FIRST". You will be making multiple deletes, so in order to get it back to the original state, you must make a backup and then restore afterwards. Remember too, that you will need to substitute your own Web.Config connectionstring entry for "YourNorthwindString" in the sample code

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• How can I designed multi-threaded application for larger user base

  - by rokonoid

  Here's my scenario, I need to develop a scalable application. My user base may be over 100K, every user has 10 or more small tasks. Tasks check every minute with a third party application through web services, retrieving data which is written in the database, then the data is forwarded to it's original destination. So here's the processing of a small task: while(true){ Boolean isNewInformationAvailable = checkWhetherInformationIsAvailableOrNot(); If(isNewInformationAvailable ==true){ fetchTheData(); writeToDatabase(); findTheDestination(); deliverTheData(); isAvailable =false; } } Here is the question: as the application is large, how should I approach designing this. I'm going to use Java to write it. Should I use concurrency, and how would you manage the concurrency?

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