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• What do you consider to be a high-level language and for what reason?

  - by Anto

  Traditionally, C was called a high-level language, but these days it is often referred to as a low-level language (it is high-level compared to Assembly, but it is very low-level compared to, for instance, Python, these days). Generally, everyone calls languages of the sort of Python and Java high-level languages nowadays. How would you judge whether a programming language really is a high-level language (or a low-level one)? Must you give direct instructions to the CPU while programming in a language to call it low-level (e.g. Assembly), or is C, which provides some abstraction from the hardware, a low-level language too? Has the meaning of "high-level" and "low-level" changed over the years?

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• Copying content on webpages in safari. To HTML

  - by Carl Smith

  Hi, is there an easier way to copy and paste website content in html? Want to copy and look like this. Product Information: Length: S / M / L Material: Polyester and Elasthane Brand: Roxana Exclusive Style: Basque But when i paste it into my content box it looks like this- Product Information Length: S / M / L Material: Polyester and Elasthane Brand: Roxana Exclusive Style: Basque Then i need to edit it in the html editor to rearrange it. Is the some sort of app or plugin that i can get so i can turn the text of the page into html so it looks right straight away when i copy it into my content box? If that makes any sense? Thanks Carl Smith :-)

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• More on Visual Studio 11 from Scott Guthrie

  - by TATWORTH

  At http://weblogs.asp.net/scottgu/archive/2011/10/30/web-forms-model-binding-part-3-updating-and-validation-asp-net-4-5-series.aspx, Scott Guthrie talks about data binding is ASP.NET 4.5.There is a key statement "Because our GetProducts() method is returning an IQueryable<Product>, users can easily page and sort through the data within our GridView.  Only the 10 rows that are visible on any given page are returned from the database."Consider paging through a large dataset, this is going to give high performance with very little code as the database to IIS server traffic will be reduced.Can't code withoutThe best C# & VB.NET refactoring plugin for Visual Studio

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• I cant add PPA repositories!

  - by Karthik Krishna

  For example, after running this command : sudo add-apt-repository ppa:tualatrix/ppa I get the following output : Traceback (most recent call last): File "/usr/bin/add-apt-repository", line 125, in <module> ppa_info = get_ppa_info_from_lp(user, ppa_name) File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 80, in get_ppa_info_from_lp curl.perform() pycurl.error: (6, "Couldn't resolve host 'launchpad.net'") Why is it so. I just installed Ubuntu 12.04 LTS. And it works fine. I have updated and installed the system. I have even installed all required packages. But the thing is as soon as I want to install more packages, Like PPA and sort I am not able to. Till now I have not been able to install any PPA. I am working behind a proxy.

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• Uploading to a PPA using quickly

  - by Andres

  I am trying to participate in ubuntu showdown. I followed Jono's tutorial to do a browser using quickly. I did some modifications including choosing license (gpl v3), putting my name in copy right ( without special spanish charecters since quicky does not like it) $quickly run to make sure it worked I used bazaar to commit a change with a line of comment. I packaged it using quickly. Managed to install it ignoring some warnings but it would not run. I want to share code to get feedback. I have a launchpad account, signed terms and coditions, created a ppa. I got my commandline to talk to lauchpad using the encription key. But when I run $quickly release or $quickly share and it says the project does not exist. There seems to be another command $dput ... But i don't seem to get the wording right because it requests some sort of signed file that i cannot manage to add the correct way.

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• Why does Clojure neglect the uniform access principle?

  - by Alexey

  My background is Ruby, C#, JavaScript and Java. And now I'm learning Clojure. What makes me feel uncomfortable about the later is that idiomatic Clojure seems to neglect the Uniform access principle (wiki, c2) and thus to a certain degree encapsulation as well by suggesting to use maps instead of some sort of "structures" or "classes". It feels like step back. So a couple of questions, if anyone informed: Which other design decisions/concerns it conflicted with and why it was considered less important? Did you have the same concern as well and how it end up when you switched from a language supporting UAP by default (Ruby, Eiffel, Python, C#) to Clojure?

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• How to comply with this guideline for submitting an application to the Software Center?

  - by George Edison

  I was reading through the Ubuntu Developer Programme Agreement for submitting applications to the Software Center and stubled across the following clause: 3.1 You must first test Apps you submit to confirm they are compatible with all currently supported versions of Ubuntu (as listed on Canonical's website at the date of submission by you) and your Apps must comply with the Publishing Policy. Does this mean I must install both the 32 and 64 bit versions of Ubuntu 8.04, 10.04, 10.10, 11.04, and 11.10? If so, that's 10 installations of Ubuntu - is that really feasible (even with virtual machines)? Alternatively, does anyone have suggestions for testing the application without actually installing each version? Some sort of chroot tool, perhaps?

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• Speed, delta time and movement

  - by munchor

  player.vx = scroll_speed * dt /* Update positions */ player.x += player.vx player.y += player.vy I have a delta time in miliseconds, and I was wondering how I can use it properly. I tried the above, but that makes the player go fast when the computer is fast, and the player go slow when the computer is slow. The same thing happens with jumping. The player can jump really high when the computer is faster. This is sort of unfair, I think, because. Should I be doing this someway else? Thanks.

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• Dell Inspiron 1120 Ubuntu Light -> Desktop and now I'm having problems with wifi and suspend

  - by David N. Welton

  I got a Dell Inspiron 1120 which ships with Ubuntu Light, as well as Windows. My wife prefers Ubuntu, but obviously outside of web stuff, you can't do a lot with Light, so I went ahead and installed the Desktop version of Ubuntu (10.10 / maverick). Whereas before it suspended beautifully and connected to wifi networks flawlessly, it now displays the following problems: It seems to suspend ok, but on resume, the screen remains blank, even though the computer appears to wake up again. Wifi doesn't connect. I tried using the suggested proprietary drivers, and those don't seem to change the situation. All in all, a bit frustrating to run into these sorts of "regressions" - does anyone know what sort of drivers and such Ubuntu Light might have shipped with for this computer that made it work so well? Unfortunately, I wiped the disk in order to install the Desktop version of Ubuntu.

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• SharePoint 2013 Development Machine - Now Available

  - by Sahil Malik

  SharePoint 2010 Training: more information With SharePoint 2013 RTM’ing, I am thrilled to announce an updated version of my SharePoint 2013 Development Machine book’let. As you know, I am publishing many small booklets, and eventually I will publishing a single big book also – sort of the track/cd model. Also, this self-e-publish model allows me to keep the content updated as I learn more. There is a very minor portion at the end that is still pre-RTM. Specifically as of now SharePoint Designer 2013 and Visual Studio tools for SharePoint 2013 have not yet RTM’ed. However, installing those is not very different from Beta2. The screenshots may change a bit. I will of course update the book soon as the RTM bits are available. Read full article ....

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• How To Create a Customized Windows 7 Installation Disc With Integrated Updates

  - by Chris Hoffman

  Do you want to save time when installing Windows 7? You can create a customized installation disc and have it perform an installation without asking you questions, integrate updates and drivers, tweak Windows, and remove Windows components. We’ll be using RT Se7en Lite for this – if you’ve used nLite with Windows XP or vLite with Windows Vista in the past, it works similarly. RT Se7en Lite is a sort of vLite or nLite for Windows 7. Image Credit: bfishadow on Flickr How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It

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• Is using MultiMaps code smell? If so what alternative data structures fit my needs?

  - by Pureferret

  I'm trying to model nWoD characters for a roleplaying game in a character builder program. The crux is I want to support saving too and loading from yaml documents. One aspect of the character's is their set of skills. Skills are split between exactly three 'types': Mental, Physical, and Social. Each type has a list of skills under if. My Yaml looks like this: PHYSICAL: Athletics: 0 Brawl: 3 MENTAL: Academics: 2 Computers My initial thought was to use a Multimap of some sort, and have the skill type as an Enum, and key to my map. Each Skill is an element in the collection that backs the multimap. However, I've been struggling to get the yaml to work. On explaining this to a colleague outside of work they said this was probably a sign of code smell, and he's never seen it used 'well'. Are multiMaps really code smell? If so what alternate data structures would suit my goals?

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• What package do I need to install to develop plugins for gedit?

  - by Wes

  I'm using Ubuntu 12.04 with python 2.7.3 and PyGObject and I'd like to develop plugins for Gedit in python. I found a simple looking tutorial for this sort of thing here. According to the tutorial, I need the Gedit module to interact with the plugin interface: from gi.repository import GObject, Gedit I keep getting an import error when trying to import the Gedit module. So, my question is: what package do I need to install to get this module? I've tried: gedit-dev , gedit-plugins Edit: Here is the full traceback for the above statement: ERROR:root:Could not find any typelib for Gedit Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: cannot import name Gedit

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• Course/Points to include in a educational session on Asp.net MVC 4 to be given to office colleagues

  - by bhuvin

  I am planning to take a educational session on ASP.NET MVC , now in this i am confused what all to include. Actually in office there are very less people who know about it, and are sort of closed to it. So want to take a session over it to give them a "Tip of the Iceberg". Now I want some suggestions to include into the session.And its just a 1 hour session. Dont wanna go about loading nitty gritty details. Just want to make them curious. So want some such content which amazes them. For eg : Catering same code for different devices like for mobiles.

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• Eloqua API Full Code Example in JAVA

  - by Shawn Spencer

  Is there anyone out there who has mastered to retrieve some data programmatically from Eloqua? First of all, I'm more or less a newbie, as far as JAVA. I can follow tutorials, take directions and will Google till my fingers bleed. I understand the basics and am slightly familiar with OOP. My main problem is that I have a Friday deadline (and tomorrow is Thanksgiving). At any rate, all the Eloqua code snippets (that I've been able to find) illustrate one aspect of a specific issue, and that's it. In my case, I would greatly appreciate a JAVA project of some sort, with all the necessary files to do web services (WSDL, SOAP and perhaps WSIT) and the main class and all that included. No, I don't want you to do my work for me! Just give me enough to find my way around, enter the information I need to retrieve and all that. I'll take it from there. Any pointers, links or suggestions?

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• Steve Ballmer réfute la disparition des PC au profit des tablettes, quel sera l'avenir des appareils

  Mise à jour du 04.06.2010 par Katleen Steve Ballmer réfute la disparition des PCs au profit des tablettes en réponse à Steve Jobs, quel sera alors l'avenir des appareils numériques ? Suite au passage de Steve Jobs sur le grill des journalistes lors de la conférence D8, Steve Ballmer (CEO de Microsoft) s'est lui aussi assis dans la même chaise hier, où il a répondu aux questions de l'équipe de Wall Street Journal. «Quand nous étions une nation agraire, toutes les voitures étaient des camions. Mais à partir du moment où la population a commencé à migrer vers les villes, les gens ont commencé à utiliser des voitures. Je pense que les PC vont connaître le même sort que les camions. De moins en moins de ...

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• Single click handler for all buttons in Javascript? Is it a pattern? Whats the benefit?

  - by Hasan Khan

  I have been told that when there are multiple buttons on the page for same purpose but targeting different item e.g. delete item on a grid of items, they say it is recommended to just register for click handler only on the top most element like 'body' and check what was clicked instead of hooking up click with every delete button. Whats the benefit of this? Creating more handlers causes problems? Is it an optimization of some sort? Is it a pattern? Does it have anything to do with performance? Where can I read more about it?

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• How to manage security cameras in Ubuntu?

  - by Josh

  I am setting up a server of sorts and chose ubuntu for the OS as my dad has it on a few computers. I am unimpressed with Windows or MAC due to all the add-ons and complexity of it when all I want is something simple. The system will have 3 purposes, storing my wife's photography work (she is a professional photographer) storing music for quick access to our entertainment system (will be running the system through the tv in our living room and thus through our surround sound) and will also serve as a DVR unit for a home security system I am going to put together. My question is what sort of software options are there for the Ubuntu system as far as a DVR with frame by frame playback. It does not need to be fancy but of course a variety of options are a nice touch.

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• SQL Saturday is Coming to Nashville! Won't You?

  - by KKline

  How 'Bout a Little Context? Let me be direct with you. I love SQL Saturday . If it were a woman , I'd marry it. (Avoiding all extraneous thoughts of what my real wife would say, etc etc). Check out this fun Flickr Feed from the recent SQL Saturday in Chicago or these picks by Jorge Segara ( blog | twitter ) to see the sort of fun that's in store. But who can argue with a day of free SQL Server training and a chance to network with great presenters and a wide swath of your peers? Keynotes are more...(read more)

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• Rapid prototyping and refactoring

  - by Puckl

  Sometimes when I start a small project (like an android app), I don´t know which approach will work out at the end, and I just go for one approach and give it a try. But if I never used this approach before (for a sort of application I´ve never programmed before) it is like stepping into unknown terrain. I don´t know which libraries to use (maybe I have to try out several libraries) and there are so many unkonwns (like: how to get raw audio data in android) So then my development process goes like this: Write a piece of code to see if the approach has a chance. (The more uncertain the approach is, the uglier the code gets) If it works, refactor a lot until it is beautiful I think it could be a waste of time if I planned my software design in detail at this point, it would be like planning a trip without a map. Is this part of aglie development? How do you deal with unknown terrain in software development?

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• Sorting and Paging a Grid of Data in ASP.NET MVC

  This article is the fifth installment in an ongoing series on displaying a grid of data in an ASP.NET MVC application. Previous articles in this series examined how to sort, page, and filter a grid of data, but none have looked at combining one or more of these features in a single grid. This article and the next one show how to merge these features into a single grid. In particular, this article looks at displaying a grid that can handle both sorting and paging. The subsequent article will examine combining sorting, paging and filtering. Like with its predecessors, this article offers step-by-step instructions and includes a complete, working demo available for download at the end of the article. Read on to learn more! Read More >

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• Do 2D games have a future? [closed]

  - by Griffin

  I'm currently working on a 2D soft-body physics engine (since none exist right now -_-), but I'm worried that there's no point to spending what will most likely be years on it. Although I love working on it, I doubt such an engine would get any income considering anyone willing to pay money for the library will likely to be working in 3D. Do 2D games have any sort of future in the game industry? Should I just drop my engine and find something meaningful to work on? Bonus: I've been trying to think of a unique way to implement my physics engine in a 2d game by looking at games that are multiple dimensions, but still in 2d perspective like Paper Mario. Any ideas?

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• Did "sudo dconf reset -f /org/compiz". Now ccsm settings ignored

  - by bshanks

  I executed: sudo dconf reset -f /org/compiz Now changing settings in CompizConfig Settings Manager (ccsm) has no effect. For example, changing the number of desktops has no effect. I tried purging and reinstalling ccsm but it didn't help. Incidentally, where is the documentation for this sort of thing (which documentation specifies where Unity and Compiz store config settings?)? And where does dconf store things? And where is dconf's documentation? http://dag.wieers.com/home-made/dconf/dconf.1.html says nothing about the 'reset' command, and it says it stores things in /var/log/dconf, but nothing was there. Are there two things named 'dconf'? I would actually like to just put things back to where they were before I executed sudo dconf reset. I have a backup of my hard drive available, I just need to know which files to rollback. I tried rolling back the .config, .gconf, and .cache directories, to no avail. I'm using 12.04.

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• MySQL fails to start after upgrade to 12.04?

  - by radek

  I'm a newbie on MySQL ground so bear with me. I've just finished upgrading 11.10 to 12.04. Everything seemed to work without any hiccups and all my software and settings are working fine. Apart from MySQL. When I try: sudo start mysql I receive an error: start: Job failed to start Where can I possibly diagnose what the problem is? And (hopefully) - how to sort it out? (I disabled automatic start following advice here if that is of some importance) Update 1: Both outputs of: cat /var/log/mysql.err cat /var/log/mysql.log are empty. Output of dmesg | grep mysql: [ 1401.785141] type=1400 audit(1335619832.181:25): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=16165 comm="apparmor_parser" [ 1401.791089] init: Failed to spawn mysql main process: unable to execute: No such file or directory Update 2: As indicated by AWinter below - it seemed that MySQL disappeared automagically after upgrade and had to be reinstalled.

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• First Post

  - by Allan Ritchie

  It has been a while since I've had a blog, but I'm back into the open source dev and decided to get back into things.  I had a blog a few years back when NHibernate was infant (0.8 or something) and I was working with the Wilson ORMapper (www.ormapper.net) at the time.  Anyhow, I'm still working with NHibernate (particularily the exciting v3 alpha 1) and Castle framework. I've also written a .NET ExtDirect stack for which I'll be writing a few articles around due to its flexibility.  I decided to write yet another communication stack because all the implementations I found on the Ext forums were lacking any sort of flexibility.  So stay tuned... I'll be presenting a bunch of the extension points.

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