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  • Prevent APT from overwriting JCE jars

    - by Doc
    My server runs a Java application that requires I replace a few java library files with ones I downloaded on my own. This has to do with JCE security extensions and isn't really relevant to my question. I've found that these library files tend to get overwritten by apt when it later updates my java package. Is there a apt-friendly way of masking these specific files so apt won't touch them? Potential Solutions I'm considering just removing the write flag from the files, though I'm expecting this will cause apt to spew its guts everywhere when it later tries to overwrite them? Perhaps there's a java custom library directory I don't know of, where I can park my files and they'll be loaded instead of the package's defaults? The last-resort option I'm considering is writing a cron job to periodically replace the files with my versions. I hate this option.

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  • mismatch of version of libkdcraw20 and libkdcraw-data

    - by naveen jankar
    I'm using Ubuntu 12.04 LTS. When I'm installlin digiKam, I'm getting a mismatch in the versions of libkdcraw20 and libkdcraw-data wanted by it and that available in the repositories. It wants version 4.8.5-0ubuntu0.2 (or in other words that is the latest version according to synaptic) but the available one is 4.8.5-0ubuntu0.3 in both cases. Is there a work-around? Or how do I request the Ubuntu managers to rectify this? addenda On Synaptic i selected digikam to be installed. it downloaded all the dependencies but the 2 in question were not found - the message it gave "W: Failed to fetch security.ubuntu.com/ubuntu/pool/main/libk/libkdcraw/… 404 Not Found [IP: 91.189.91.13 80]". I google-searched the 2 files in the repositories to find that the version available there is ubuntu0.3 instead of ubuntu0.2.

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  • Why does Ubuntu delay a lot on booting?

    - by UbuntuUser2013
    I have a problem. My Ubuntu delays a lot to boot, my computer is 4GB RAM, Core2Duo 3.2Ghz This is my bootchart: http://img841.imageshack.us/img841/138/desktopmvx.png I can't understand what is the problem. Thank you. Original question in spanish: Por que tarda tanto el arranque de ubuntu? Hola les comento que tengo un problema mi ubuntu tarda demasiado arrancando, mi computadora es 4GB Ram, core2duo 3.2ghz Este es mi bootchart http://img841.imageshack.us/img841/138/desktopmvx.png No entiendo cual es el problema. Gracias!

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  • Alsa version numbers not consistent

    - by user69245
    I've recently moved from 10.04 to 12.04 and have problems with crackles on audio when the screen changes (especially obvious in a Skype conversation with video). !!Kernel Information !!------------------ Kernel release: 3.2.0-26-generic-pae Operating System: GNU/Linux Architecture: i686 Processor: i686 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: 1.0.24 Library version: 1.0.25 Utilities version: 1.0.25 Running through the SoundTroubleShooting procedures I got the above details at Step 3. Is the mismatch between the Driver version (1.0.24) and the Library and Utilities versions (1.0.25) the cause of my problem, or should I be looking elsewhere? In answers to the question "Will ALSA 1.0.25 version have time to enter 12.04?" I read that 1.0.25 would be part of the new kernel, but my kernel version appears to be newer than the original release.

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  • Creating a level editor event system

    - by Vaughan Hilts
    I'm designing a level editor for game, and I'm trying to create sort of an 'event' system so I can chain together things. If anyone has used RPG Maker, I'm trying to do similar to their system. Right now, I have an 'EventTemplate' class and a bunch of sub-classed 'EventNodes' which basically just contain properties of their data. Orginally, the IAction and IExecute interface performed logic but it was moved into a DLL to share between the two projects. Question: How can I abstract logic from data in this case? Is my model wrong? Isn't cast typing expensive to parse these actions all the time? Should I write a 'Processor' class to execute these all? But then these actions that can do all sorts of things need to interact with all sorts of sub-systems.

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  • What are the processes of true Quality assurance?

    - by user970696
    Having read that Quality Assurance (QA) is focused on processes (while Quality Control (QC) is focused on the product), the books often mentions QA is the verification process - doing peer reviews, inspections etc. I still tend to think these are also QC as they check intermediate products. Elsewhere I have read that QA activity is e.g. choosing the right bugtracker. That sounds better to me in terms of process improvement. The question that close-voting person obviously missed is pretty clear: What are the activities that true QA should perform? I would appreciate the reference as I work on my thesis dealing with all these discrepancies and inconsistencies in the software quality world.

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  • How to deal with tautology in comments?

    - by Tamás Szelei
    Sometimes I find myself in situations when the part of code that I am writing is (or seems to be) so self-evident that its name would be basically repeated as a comment: class Example { /// <summary> /// The location of the update. /// </summary> public Uri UpdateLocation { get; set; }; } (C# example, but please refer to the question as language-agnostic). A comment like that is useless; what am I doing wrong? Is it the choice of the name that is wrong? How could I comment parts like this better? Should I just skip the comment for things like this?

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  • What's shell script's advantage over interpreted programming languages?

    - by Lai Yu-Hsuan
    (I'm not sure if it's a appropriate question here) Shell script, like bash, can do many things. It can call Unix programs, pipe their output, redirect I/O from/to files, control flow, check whether a file exists, etc. But a modern programming language, e.g, python and ruby, can also do these all. And their are (I think) more readable and maintainable. bash is worldwide spreaded. But many distributions have installed python interpreter, too. So what's the advantage of shell script? If I could write python, ruby or perl, is it worth to learn bash?

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  • Hidden Loading with UDK

    - by CyrusFiredawn
    I was wondering, how would I go about creating hidden loading scenes with UDK? For example, a character walks in to an elevator, the elevator fakes movement, whilst the previous floor is destroyed and the next floor is loaded on top. I assume it's possible with UDK, since it's supposedly rather flexible, but I've never used UDK before (I decided to ask this question first to save me learning it all, finding out it isn't possible, then giving up). So yeah, is hiding the loading process possible? And if so, how would I go about doing it?

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  • Do delegates defy OOP

    - by Dave Rook
    I'm trying to understand OOP so I can write better OOP code and one thing which keeps coming up is this concept of a delegate (using .NET). I could have an object, which is totally self contained (encapsulated); it knows nothing of the outside world... but then I attach a delegate to it. In my head, this is still quite well separated as the delegate only knows what to reference, but this by itself means it has to know about something else outside it's world! That a method exists within another class! Have I got myself it total muddle here, or is this a grey area, or is this actually down to interpretation (and if so, sorry as that will be off topic I'm sure). My question is, do delegates defy/muddy the OOP pattern?

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  • Is there a modern (eg NoSQL) web analytics solution based on log files?

    - by Martin
    I have been using Awstats for many years to process my log files. But I am missing many possibilities (like cross-domain reports) and I hate being stuck with extra fields I created years ago. Anyway, I am not going to continue to use this script. Is there a modern apache logs analytics solution based on modern storage technologies like NoSQL or at least somehow ready to cope with large datasets efficiently? I am primarily looking for something that generates nice sortable and searchable outputs with the focus on web analytics, before having to write my own frontends. (so graylog2 is not an option) This question is purely about log file based solutions.

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  • alt+shift can't be set to toggle language

    - by Ali
    I recently did a fresh installation of Ubuntu 13.10; but there is something bothering me, which I don't quite understand. When I first tried to toggle the keyboard language(I usually switch between Persian and English) using the good old "alt+shift" shortcut it didn't work. Then, I went and checked the Keyboard shortcut settings and found out that it had been set to "super+space"(which BTW didn't work either). So I tried to change it back to "alt+shift" but it just doesn't work; when I press "alt+shift" to set it up as the toggle-language shortcut, the box automatically resets itself to its previous value(without any errors whatsoever). As far as I've checked I couldn't find any thing obvious corresponding to the shortcut "alt+shift" either. I've currently set up the shortcut as "Ctrl+space"; so I can toggle the language. My question is why I cannot set it up to just "alt+shift"?

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  • Water Simulation in LIBGDX [on hold]

    - by Noah Huppert
    I am doing some R&D for a game and am now tackling the topic of water. The goal Make water that can flow. Aka you can have an origin point that water shoots out from or a downhill slope. Make it so water splashes, so when an object hits the water there is a splash. Aka: Actual physics water sim. The current way I know how to do it I know how to create a shader that makes an object look like its water by making waves. Combined with that you can check to see if an object is colliding and apply an upwards force to simulate buoyancy. What is wrong with that way The water does not flow No splashes Possible solutions Have particles that are fairly large that interact with each other to simulate water Possible drawbacks Performance. Question: Is there a better way to do water or is using particles as described the only way?

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  • How to profile LINQ to Entities queries in your asp.net applications - part 1

    - by nikolaosk
    I have been teaching ASP.Net and EF in one of my classes and I have been asked on the various ways we can profile database activity. Everyone that I know that uses EF as its data access layer has the same question. "How can I see the T-SQL code that the LINQ to Entities engine generates on the fly?" I know a lot of people use VS studio built-in visualisers but that is not enough. A lot of developers use SQL Server Profiler. That is also a good solution since we can see the queries(generated from...(read more)

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  • Map function+backspace to delete

    - by Espressofa
    I'm used to Apple laptops, on which Function + Backspace is mapped to Delete. I'm also okay with Shift + Backspace. Is there a way to obtain this? Note, I'm using Xmonad and have some keyboard modifications set up with xmodmap but have very little understanding of how it works. I've tried xmodmap -e "keycode 22 = BackSpace KP_Delete BackSpace BackSpace", which works in some applications but is ignored by my terminal. I've seen this question but it seems KDE-specific. I would prefer not to have to use some GUI.

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  • Best choise of gui platform/framework for 3d development [closed]

    - by Miguel P
    The title pretty much says it all, so I'm developing a 3d engine for Directx 11, and it's going good so far. I started using .net forms as a GUI, but then(Of curiosity), i jumped to MFC, and the app looked great, but in my perspective, MFC is badly written, and it's too complicated, meaning that some things just took forever, while it would have taken a few seconds in .net forms. But my real question is: If i want to make an Editor for a 3d scene, where directx renders in the form( This was accomplished in .net forms), what would be the best choise of gui platform/framework? MFC,.net forms, Qt, etc....

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  • What is "Unlock keyring" and how do I get rid of it?

    - by cipricus
    (In my case this message never appeared before installing Ubuntu One - see this question). Can I use Ubuntu One and avoid being prompted each time like this? I use Lubuntu 12.04. Edit: After exchanging comments I add the supplementary info: I am asked for password and to select session if I log out and in (auto-login is NOT set). Ubuntu One is installed but set NOT to start with session. Keyring appears nonetheless. Before installing Ubuntu One this didn't happen. Also, following the advice of con-f-use, I have entered ps -A | grep -i ubunt[u] in terminal, and got 2346 ? 00:00:01 ubuntuone-syncd, which means that ubuntuone is running when it was not supposed to.

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  • What is the best way to keep track of the median?

    - by Steven Mou
    I read a question in one book: Numbers are randomly generated and stored into an (expanding) array, How would you keep track of the median? There are two data structures can solve the problem. One is the balanced binary tree, the other is two heaps which keep trace of the biggest half and the smallest half of the elements. I think these two solutions has the same running time as O(n lg n), but I am not sure of my judgement. In your opinions, What is the best way to keep track of the median?

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  • How do games make money? What models do they use?

    - by cable729
    I'm trying to research the ways in which games make money. I want to know more about the models they use (free/premium, trial/subscription, free-to-play with micro-transactions, etc.). In addition, I want information on which models work for which games, what models are best for which age groups, etc. I've tried my best to find information, and Google hasn't turned anything up at all. I think I'll stop by my University's library and see if there's anything there. This may seem like a broad question, but I'm looking for links and titles of books, not typed-out answers.

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  • Use PathModifier of MoveModifier for Tower of Defense Game

    - by Siddharth
    In my game I want to move enemy on the fixed path so that I have establish manual grid structure for that purpose not used tile map. Game contain multiple level and the path will be different for each level and also multiple fixed path exist for each level. So my question is, What I have to use MoveModifier or PathModifier for my game ? Also mention I have to use WayPoint or not. Further detail you all are free to ask. Please help me to decide what to do.

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  • PHP city-sim castle layout

    - by Gert
    I am currently contemplating the layout system for my php based game but i've run into a couple of worries. So my idea is a 9X9 grid where the center 3X3 are inner castle. The inner castle will be 6X6 if you enter it(click on it). and with the option to expand the inner castle converting one of the 9X9 tiles to a 4X4 inner castle tile. So here is my question: What is the best way to tackle this type of layout? my original idea was a 18X18 grid and saving it in the db as (idCastle, Y, X) where X is a string of 18 numbers long telling me if the tile is an inner/outer tile or a inner/outer building. but i am not really fond of this idea and would like to hear some other ideas on how to tackle this. Thanks in Advance, Gert

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  • Looking for information on Scholastic BASIC programming books from the mid-1980s

    - by Jason Berkan
    My very first introduction to programming was in grade school, when I would purchase books full of BASIC code listings from the Scholastic school catalogue. Lately I have been searching teh Internetz for information on these books, but without any success. Does anyone know or remember anything about these books? All I can recall is that they were large paperbacks full of various BASIC code listings, some of which were game like. They all included instructions on how to modify the code listings for the different systems of the day, and I distinctly remember that they would always ask for a number in order to seed the RANDOMIZE command (since I figured out on my own that RANDOMIZE TIMER eliminated the need for the question and answer).

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  • Creating a New XML Publisher Report Using an Existing EBS Purchasing Report

    - by Annemarie Provisero
    ADVISOR WEBCAST: Creating a New XML Publisher Report Using an Existing EBS Purchasing Report PRODUCT FAMILY: EBS - Procurement November 22, 2011 at 9:00 am EST, 12:00 pm, Mid-Atlantic Standard Time, 2:00 pm London, 4:00 pm, Egypt Time This one-hour session is recommended for technical and functional users who want to try and create their own reports in Purchasing based on existing (seeded) oracle report. TOPICS WILL INCLUDE: Introduction to XML Publisher Oracle BI Publisher Desktop Setup and Process Demo References A short, live demonstration (only if applicable) and question and answer period will be included. Oracle Advisor Webcasts are dedicated to building your awareness around our products and services. This session does not replace offerings from Oracle Global Support Services. Click here to register for this session ------------------------------------------------------------------------------------------------------------- The above webcast is a service of the E-Business Suite Communities in My Oracle Support. For more information on other webcasts, please reference the Oracle Advisor Webcast Schedule.Click here to visit the E-Business Communities in My Oracle Support Note that all links require access to My Oracle Support.

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  • How can i run my .LÖVE game directly from the lua interpreter?

    - by jonathan
    I've just started with LOVE and LUA , i'm interested in LOVE because i want to play around with something different from my dayjob(i'm a webdeveloper) and since it uses LUA and is interpreted , i though it would be a great way to try out the API. but i couldn't find how to run my .LÖVE game directly from the lua interpreter? i'm finding it bothersome to package the game each time i make a little test with the API. since i couldn't find the answer i'm asking, but maybe i'm serching for the wrong terms, if this it is a simple matter like "import the library" or set the global, i'll gladly remove my question.

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  • Android frame by frame PNG animation

    - by Trick
    I am new at Android game development. I have done some apps before, but none of them are games :) So, I wanted to do a frame-by-frame animation of PNGs. I tried with AnimationDrawable, but OutOfMemory error comes quickly (I have a lot of PNGs). So I came upon SurfaceView. But I am stuck, because I really don't find any useful tutoirals/examples. What is the best way to make an animation like this? Here there already is a great answer to almost the same question, but all the links there don't work anymore. I would really like to here suggestions how to make an animation frame-by-frame with PNGs in Android and if you have any tutorials or examples, I will be really happy :)

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