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• How to find a programming mentor?

  - by Dvole

  I decided to learn programming. I've been reading SO for few days, and I think I will start with C++, as I read some articles. I am aware of loops, arrays, program logic and objects a little and I need someone to look me over and help me with small questions I get when doing my first projects. So here is the question - where do I find such guy? I don't got any friends who program and all. EDIT: 2 years later, I am still looking for mentor. I did not actively code just started 3 months again. I work on Objective-C and iOS programming and game programming with Cocos2d. If you want to become my mentor, drop me a or comment.

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• Do ALL your variables need to be declared private?

  - by shovonr

  I know that it's best practice to stay safe, and that we should always prevent others from directly accessing a class' properties. I hear this all the time from university professors, and I also see this all the time in a lot of source code released on the App Hub. In fact, professors say that they will actually take marks off for every variable that gets declared public. Now, this leaves me always declaring variables as private. No matter what. Even if each of these variables were to have both a getter and a setter. But here's the problem: it's tedious work. I tend to quickly loose interest in a project every time I need to have a variable in a class that could have simply been declared public instead of private with a getter and a setter. So my question is, do I really need to declare all my variables private? Or could I declare some variables public whenever they require both a getter and a setter?

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• How to implement custom texture formats in Android?

  - by random1337

  What I know: Android can load PNG, BMP, WEBP,... via BitmapFactory. What I want to achive: Load my own 2D file format (e.g. 1-bit texture with a 1-bit alpha channel) and output a RGBA8888 texture. Question: Is there any interface to achieve this?(or any other way) The resulting image is used as a texture for a 3D model. Why would you do that? Saving phone memory and download bandwidth while expanding the texture at runtime to RAM seems reasonable for very simple textures.

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• Do any database "styles" use discrete files for their tables?

  - by Brad

  I've been talking to some people at work who believe some versions of a database store their data in discrete tables. That is to say you might open up a folder and see one file for each table in the database then several other supporting files. They do not have a lot of experience with databases but I have only been working with them for a little over a half year so I am not a canonical source of info either. I've been touting the benefits of SQL Server over Access (and before this, Access over Excel. Great strides have been made :) ). But, other people were of the impression that the/one of the the benefit(s) of using SQL Server over Access was that all the data was not consolidated down into one file. Yet, SQL Server packs everything into a single .mdf file (plus the log file). My question is, is there an RDBMS which holds it's data in multiple discrete files instead of one master file? And if the answer is yes, why do it one way over the other?

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• Philosophy of scroll bars [closed]

  - by Parkhid

  Please suppose I want to design my own text editor . simply like notepad. Without using any richtextbox or other controls LIKE EDIT in C++. Main Handle is just a window in C++ or usercontrol in C#. The Question is here for scrolling option , how can I perform scrolling when user is typing. I mean vertical scrolling here . What is Philosophy of works of scroll bars in C++ windows or C# user controls ? Should I Clear the (Usercontrol or Window) When User reaches to end of (Usercontrol or Window) and then Put caret on start of (Usercontrol or Window) ? What about scrolling with thumb or hand scrolling ? How can I find the Text Position which scroll to ?

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• Blank Screen on 12.04

  - by stupidwhiteguy

  Can hit Ctrl-Alt-F1 and login but no fixes work. Tried nomodeset and everything else appears to have upgraded but can't see anything. I really need this computer to work. It is an old Dell with 1.6 processor with old school monitor. I don't know why people are giving my question negative votes. If you know how to fix this, then please help me, as I have read and tried all the solutions that I've found. Just for the record reformatting is not fixing it, and I can't get a boot CD to load either. If you know how to use the blank screen fix tutorial, please explain cos I'm lost. Most people don't understand this stuff and an easy "how-to" fix would be nice.

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• Multiple ( V- / I- ) Buffers, is it sane?

  - by Techie

  Currently I am developing an RTS game using XNA ( / ANX.Framework ). There is one thing bothers me. I am not sure in what way or how to organise Buffers. Should I use a new Vertexbuffer for any object ( e.g. a Char, a Table, an model ) or is it better to use ONE HUGE/ BIG Buffer to store any geometry in? I am still new to 3D Programming though I finished yet couple games using DirectX 9. Well, I hope this question qin't a duplicate and I appreciate any answer leading me into the right direction.

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• Le nouveau cadre législatif sur la gestion du .fr adopté par l'Assemblée Nationale, ce texte met l'accent sur la liberté d'entreprendre

  Le nouveau cadre législatif sur la gestion du .fr adopté par l'Assemblée Nationale Met l'accent sur la liberté d'entreprendre L'Assemblée Nationale vient d'adopter une nouvelle loi sur la gestion et l'attribution des noms de domaines sur Internet pour l'extension .fr. Un vote favorable qui fait suite à l'annulation en octobre dernier, par le Conseil Constitutionnel, du précédent cadre législatif en vigueur depuis 2004. Un cadre représenté par l'article L. 45 du Code des Postes et Communications Électroniques jugé incomplet et insatisfaisant. "Contraire à la Constitution" même, d'après le Conseil, ce qui remettait en question le fonctionnement de l'A...

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• How to maintain a file's 'last modified' date ?

  - by Will.

  I'm copying files and folders over from one filesystem to another (both are ext3) via cp in the terminal. The 'date modified' on all of the files are being changed to the current time although I am not modifying the folder or the files. I'd like for them to keep their existing 'last modified date' which vary within the past 5 years. I am not interested in changing them to a specific date as described this previous question, but to maintain the existing 'last modified' date. I'm using 12.04.

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• Avez-vous confiance dans la confidentialité du Cloud ? Google fait certifier la confidentialité des Google Docs par des tiers indépendants

  Avez-vous confiance dans la confidentialité du Cloud ? Google fait certifier la confidentialité des Google Docs par des organismes indépendants Google, Amazon ou Salesforce.com se livrent bataille dans le Cloud. Mais ces prestataires ont un point commun : la question de la confidentialité est toujours plus ou moins esquivée. Le constat est certainement moins vrai pour Microsoft qui d'une part propose un Cloud hybride (et donc permet de garder la main en local sur ses données sensibles) et d'autre part qui a admis qu'en cas de demande de la part de la justice américaine, ses data-centers seraient ouverts au FBI.

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• Unit testing multiple conditions in an IF statement

  - by bwalk2895

  I have a chunk of code that looks something like this: function bool PassesBusinessRules() { bool meetsBusinessRules = false; if (PassesBusinessRule1 && PassesBusinessRule2 && PassesBusinessRule3) { meetsBusinessRules= true; } return meetsBusinessRules; } I believe there should be four unit tests for this particular function. Three to test each of the conditions in the if statement and ensure it returns false. And another test that makes sure the function returns true. Question: Should there actually be ten unit tests instead? Nine that checks each of the possible failure paths. IE: False False False False False True False True False And so on for each possible combination. I think that is overkill, but some of the other members on my team do not. The way I look at it is if BusinessRule1 fails then it should always return false, it doesn't matter if it was checked first or last.

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• Do I need the ATI driver or open source for dual monitor setup (ATI HD 4350 - 1GB PCI-e) in Pear Linux 12.04?

  - by Geeve

  I think I covered my question in the title. Right now both monitors are mirrored (both 19" at 1440x900). I guess what I need to know is do I need the ATI proprietary driver or will the open source driver from Ubuntu (additional drivers) work? I want to expand the desktop between the two monitors. Still finishing install and running updates now, I just wanted to gather all documentation and downloads prior to doing what is necessary. Any help will be greatly appreciated.

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• Split Texture2D Across Line

  - by Simie

  Background I'm using a texture as a damage map represented by an array of floats for displaying damage effects on a space ship in a process. An upside of this is being able to 'slice' ships in half, using an input damage map with a line down the middle, as shown in the diagram below. Question However, I'm encountering problems separating this split ship into two different entities. I would like to be able to split the image down the 'damage line', in a process similar to this: I don't have much idea where to start detecting the red line above. Any advice would be welcome.

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• Is there a version control system that can show changes to a specific method or function?

  - by chesles

  Sometimes it would be nice to be able to say something like: (git|svn|hg|etc) diff Foo.c:main (git|svn|hg|etc) log log Foo.c:main to see the changes made to a specific function within a source file since the last commit, or the complete history of changes. My question is two-fold: Does something exist that does this? Would such a tool be practical? It would have to do some simple parsing of the code at each revision in order to compare different versions of the function; would the overhead be too much for it to be efficient?

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• L'Internet totalement coupé en Libye, y compris à l'intérieur du territoire, les URL de bit.ly en souffriront-elles ?

  L'Internet totalement coupé en Libye, y compris à l'intérieur du territoire, les URL de bit.ly en souffriront-elles ? Mise à jour du 04.03.2011 par Katleen Alors que la situation numérique s'était arrangée en Libye il y a une dizaine de jours, l'escalade de violences qui s'y déroule actuellement semble avoir tout remis en question. En effet, d'après plusieurs spécialistes, il n'y a plus aucun trafic Internet sortant ou entrant dans le pays. [IMG]http://www.renesys.com/blog/assets_c/2011/03/latencies_Libya2_AllSources_c-thumb-400x342-275.png[/IMG] Diverses entreprises dans les secteurs de la sécurité informatique et de la surveillance des réseaux ont constaté que l'espace...

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• Windows 8, Duet Enterprise : l'ambiance est bonne entre SAP et Microsoft, SAP Mobile Platform s'ouvre à Windows Phone 8

  Windows 8, Duet Enterprise : l'ambiance est bonne entre Microsoft et SAP SAP Mobile Platform permettra également de développer des applications pour Windows Phone 8 Si la question se pose de savoir si Windows 8 va séduire le grand public, force est de constater que la nouveauté attire déjà beaucoup le milieu professionnel qui se presse autour des stands du SAPPHIRE où les tablettes et PC sous le nouvel OS de Microsoft sont en démonstration. Parmi ces stands, on trouve celui de Alegri, société d'origine allemande spécialisée dans les solutions Microsoft (Lync, Sharepoint) et SAP. Et dans la manière d'utiliser les deux en même temps. Tablette en main, un de ses respon...

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• best cloud storage + rsnapshot

  - by humbledude

  I’ve started using rsnapshot as my backup system for home PC. I really like the idea of hard links and how they are handled. But can’t find best workflow. Currently I keep my snapshots on the same partition and let’s say, copy newest one to a pendrive at the end of the week. Cloud storage is what I’m looking for. As of rsnapshot, Dropbox doesn’t fit my needs. More over there is no way to make it respect hard links — all snapshots are treated as a full snapshot. Renting a server is pretty expensive so my question is, are there better alternatives for backup in the cloud? I would like to benefit from hard links and send only incremental backups, just like in my local host.

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• Even distribution through a chain of resources

  - by ClosetGeek

  I'm working on an algorithm which routes tasks through a chain of distributed resources based on a hash (or random number). For example, say you have 10 gateways into a service which distribute tasks to 1000 handlers through 100 queues. 10,000 connected clients are expected to be connected to gateways at any given time (numbers are very general to keep it simple). Thats 10,000 clients 10 gateways (producers) 100 queues 1000 workers/handlers (consumers) The flow of each task is client-gateway-queue-worker Each client will have it's own hash/number which is used to route each task from the client to the same worker each time, with each task going through the same gateway and queue each time. Yet the algorithm handles distribution evenly, meaning each gateway, queue, and worker will have an even workload. My question is what exactly would this be called? Does such a thing already exist? This started off as a DHT, but I realized that DHTs can't do exactly what I need, so I started from scratch.

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• Accepting a numerical range in a function call

  - by dekpos

  I have encountered two ways of doing it: void foo(int from, int to); /* 'from' inclusive, 'to' exclusive */ void foo(int startIndex, int rangelength); Has one style historically been preferred over the other? If so, was it just a matter of convention or was it due to some deeper underlying reason? I'm currently programming in Java and noticed that the Arrays class uses the former style. The exclusivity of the to argument felt somewhat unintuitive to me, which led me to ask this question.

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• Naming convention: field starting with "m" or "s"

  - by Noya

  Hope this question hasn't posted yet... I saw lot of code (for example some Android source code) where fields name start with a "m" while static fields start with "s" Example (taken from Android View class source): private SparseArray<Object> mKeyedTags; private static int sNextAccessibilityViewId; I was wondering what "m" and "s" stand for... maybe is "m" mutable and "s" static? Since it seems that is a largely adopted pattern do you know if there some literature about this kind of naming convention?

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• How to Unlock Applications folder

  - by Mark Coleman

  This question relates to Ubuntu 12.04 LTS. I wish to move a folder from the desktop into the applications folder at home/usr/share/applications. When I attempt to drag the folder from the desktop to the applications folder, I get the following message: "Error moving file: Permission denied" Permission or no permission, I want to move a folder from the desktop to the above said applications folder. How do I authenticate so I can make this move? There is no opportunity to authenticate when I get the error message, only "Skip" or "Cancel". I don't want to skip or cancel, I want to authenticate and move the folder. How do I do this? Thank you!

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• Does facebook store multiple password hashes for each user?

  - by loxxy

  I noticed that Facebook allows multiple variants of my own password : My password as it is. My password with first letter capitalized. My password with all letters capitalized. It is commonly known that passwords are stored as hashes. So my question is, does facebook store multiple hashes for each user? Since the hash of each variant should be completely different... Or am I missing something, here? And there may be more combinations, besides the one I observed as well. This is obviously done to provide a better user experience & they probably have a statistical explanation of people repeating these mistakes. But I could not help but wonder, is it worth to increase so many lookups (in their database) just to help the user type a wrong password? On top of this, they warn about the caps lock (even though they don't seem to care) :

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• Should you apply a language filter to a randomly generated string?

  - by Tim

  A while back I created a licensing system for my companies new product, as well as all products after this one. As with a lot of licensing systems mine generates codes: 25 character product and registration codes, as well as 16 character module unlocking codes. My question is, since some parts of these generated codes are random should I apply a language filter to it to avoid any embarrassing language being given to the end users? I chose to as it was not difficult at all. But has anyone else ever came across something like this? Any viewpoints as to if it is worth the effort?

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• Translating with context

  - by translate

  Is there a way I can see the result of my work while I am translating? It is difficult to translate without context. If I could see how my work will appear while I am doing it, translating is much easier. Edit from Oli: I understand this question to be from somebody who is translating an application. Translators often only have a list of phrases to translate without being able to see where those phrases are used in the app. This person wants a way to quickly locate a string inside an application so they can understand the phrase better and provide the best possible translation.

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• Scripted Motion Paths (?) (XNA)

  - by Peteyslatts

  Ok, so the title isn't the greatest because this is a lot more general. Say I want to have the player be able to hit A and have their ship model roll to the right, and shift to the right of the screen, while the camera stays centered. Would I do that through programming (ie. set waypoints for the model and keep the camera focus still) or do it through animation ( so the ship model actually rolls and moves right, and just play those frames)(I actually don't know how to do this kind of 3D animation yet, haven't looked into it. Adding it to my To Do List) This is a really vague question I know, I'll try and answer any questions. Thanks, Peter

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