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  • Is it possible to create and distribute an app for the BlackBerry Playbook that doesn't go into App World?

    - by Drackir
    My company is looking to create an app that we'll use internally on several (about 20) BlackBerry Playbooks. We don't want it to be put up on App World because it's just an internal application. I'm wondering if there are any: Costs involved with this outside of paying a programmer to develop it - i.e. Are there any license fees, deployment fees, etc. License issues involved with deploying the app to multiple Playbooks without deploying it to App World Limitations on functionality of the app Other things we should be taking into consideration If it matters, the app will be collecting information and downloading it to a computer via USB.

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  • What do you do when you realize your job requires you to do something out of your depth?

    - by Billy ONeal
    For a large software project recently, I was really out of my depth. And I did actually know this; and that the only reason I was employed was mostly a lack of other qualified candidates. The job was to build a large application on top of PHP/MySQL, a system I had little experience with. (I did advise the employer of this beforehand -- I've been spoiled by C# ASP.NET/MVC and MSSQL Server) The main reason I applied was location, location, location -- on campus jobs which actually have any programming component are relatively rare. For almost a year and a half I've slogged through this, and I think I can say I know (at least somewhat) what I'm doing now. I've made some mistakes, torn out some hair, and moved on. (I'm still working on this system nowadays, but I no longer feel completely lost) In the future though, I'd like to keep my personal and professional self a little healthier than what occurred in this case. So I'm curious -- what's the best way to handle a situation like this?

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  • Does software rot refer primarily to performance, or to messy code?

    - by Kazark
    Wikipedia's definition of software rot focuses on the performance of the software. This is a different usage than I am used to; I had thought of it much more in terms of the cleanliness and design of the code—in terms of the code's having all the standard quality characteristics: readability, maintainability, etc. Now, performance is likely to go down when the code becomes unreadable, because no one knows what is going on. But does the term software rot have special reference to performance? or am I right in thinking it refers to the cleanliness of the code? or is this perhaps a case of multiple senses of the term being in common usage—from the user's perspective, it has do with performance; but for the software craftsman, it has to do more specifically with how the code reads?

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  • Font gets enlarged when rotating screen

    - by queueoverflow
    I have a new ThinkPad X220 Tablet with Kubuntu 12.04. When I rotate the screen 90° with a script, the fonts of all programs that I open after the rotation have ugly huge fonts. #!/bin/sh # Find the line in "xrandr -q --verbose" output that contains current screen orientation and "strip" out current orientation. rotation="$(xrandr -q --verbose | grep 'connected' | egrep -o '\) (normal|left|inverted|right) \(' | egrep -o '(normal|left|inverted|right)')" # Using current screen orientation proceed to rotate screen and input tools. case "$rotation" in normal) # rotate to the left xrandr -o right xsetwacom set "Wacom ISDv4 E6 Pen stylus" rotate cw xsetwacom set "Wacom ISDv4 E6 Finger touch" rotate cw xsetwacom set "Wacom ISDv4 E6 Pen eraser" rotate cw ;; right) # rotate to normal xrandr -o normal xsetwacom set "Wacom ISDv4 E6 Pen stylus" rotate none xsetwacom set "Wacom ISDv4 E6 Finger touch" rotate none xsetwacom set "Wacom ISDv4 E6 Pen eraser" rotate none ;; esac

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  • Is code that terminates on a random condition guaranteed to terminate?

    - by Simon Campbell
    If I had a code which terminated based on if a random number generator returned a result (as follows), would it be 100% certain that the code would terminate if it was allowed to run forever. while (random(MAX_NUMBER) != 0): // random returns a random number between 0 and MAX_NUMBER print('Hello World') I am also interested in any distinctions between purely random and the deterministic random that computers generally use. Assume the seed is not able to be known in the case of the deterministic random. Naively it could be suggested that the code will exit, after all every number has some possibility and all of time for that possibility to be exercised. On the other hand it could be argued that there is the random chance it may not ever meet the exit condition-- the generator could generate 1 'randomly' until infinity. (I suppose one would question the validity of the random number generator if it was a deterministic generator returning only 1's 'randomly' though)

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  • MCM Lab exam this week

    - by Rob Farley
    In two days I’ll’ve finished the MCM Lab exam, 88-971. If you do an internet search for 88-971, it’ll tell you the answer is –883. Obviously. It’ll also give you a link to the actual exam page, which is useful too, once you’ve finished being distracted by the calculator instead of going to the thing you’re actually looking for. (Do people actually search the internet for the results of mathematical questions? Really?) The list of Skills Measured for this exam is quite short, but can essentially be broken down into one word “Anything”. The Preparation Materials section is even better. Classroom Training – none available. Microsoft E-Learning – none available. Microsoft Press Books – none available. Practice Tests – none available. But there are links to Readiness Videos and a page which has no resources listed, but tells you a list of people who have already qualified. Three in Australia who have MCM SQL Server 2008 so far. The list doesn’t include some of the latest batch, such as Jason Strate or Tom LaRock. I’ve used SQL Server for almost 15 years. During that time I’ve been awarded SQL Server MVP seven times, but the MVP award doesn’t actually mean all that much when considering this particular certification. I know lots of MVPs who have tried this particular exam and failed – including Jason and Tom. Right now, I have no idea whether I’ll pass or not. People tell me I’ll pass no problem, but I honestly have no idea. There’s something about that “Anything” aspect that worries me. I keep looking at the list of things in the Readiness Videos, and think to myself “I’m comfortable with Resource Governor (or whatever) – that should be fine.” Except that then I feel like I maybe don’t know all the different things that can go wrong with Resource Governor (or whatever), and I wonder what kind of situations I’ll be faced with. And then I find myself looking through the stuff that’s explained in the videos, and wondering what kinds of things I should know that I don’t, and then I get amazingly bored and frustrated (after all, I tell people that these exams aren’t supposed to be studied for – you’ve been studying for the last 15 years, right?), and I figure “What’s the worst that can happen? A fail?” I’m told that the exam provides a list of scenarios (maybe 14 of them?) and you have 5.5 hours to complete them. When I say “complete”, I mean complete – you don’t get to leave them unfinished, that’ll get you ‘nil points’ for that scenario. Apparently no-one gets to complete all of them. Now, I’m a consultant. I get called on to fix the problems that people have on their SQL boxes. Sometimes this involves fixing corruption. Sometimes it’s figuring out some performance problem. Sometimes it’s as straight forward as getting past a full transaction log; sometimes it’s as tricky as recovering a database that has lost its metadata, without backups. Most situations aren’t a problem, but I also have the confidence of being able to do internet searches to verify my maths (in case I forget it’s –883). In the exam, I’ll have maybe twenty minutes per scenario (but if I need longer, I’ll have to take longer – no point in stopping half way if it takes more than twenty minutes, unless I don’t see an end coming up), so I’ll have time constraints too. And of course, I won’t have any of my usual tools. I can’t take scripts in, I can’t take staff members. Hopefully I can use the coffee machine that will be in the room. I figure it’s going to feel like one of those days when I’ve gone into a client site, and found that the problems are way worse than I expected, and that the site is down, with people standing over me needing me to get things right first time... ...so it should be fine, I’ve done that before. :) If I do fail, it won’t make me any less of a consultant. It won’t make me any less able to help all of my clients (including you if you get in touch – hehe), it’ll just mean that the particular problem might’ve taken me more than the twenty minutes that the exam gave me. @rob_farley PS: Apparently the done thing is to NOT advertise that you’re sitting the exam at a particular time, only that you’re expecting to take it at some point in the future. I think it’s akin to the idea of not telling people you’re pregnant for the first few months – it’s just in case the worst happens. Personally, I’m happy to tell you all that I’m going to take this exam the day after tomorrow (which is the 19th in the US, the 20th here). If I end up failing, you can all commiserate and tell me that I’m not actually as unqualified as I feel.

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  • does eCryptfs support multiple users?

    - by new to eCryptfs
    I'm new to ecryptfs and I need some clarification on how it works. Suppose there are two root users userA and userB, If I mount some folder under userA: [userA@Dev] $ mount ecryptfs real img now I can visit the img folder to access decrypted data. My questions is: While userA is still in log in state. Can userB login and access the decrypted data? This is currently what I observed on my local machine, but I'm not sure if it was cause by my misconfiguration. If it is the case, how can I avoid other users from accessing the decrypted data while userA is in login state?

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  • Is the 'C' in MVC really necessary?

    - by Anne Nonimus
    I understand the role of the model and view in the Model-View-Controller pattern, but I have a hard time understanding why a controller is necessary. Let's assume we're creating a chess program using an MVC approach; the game state should be the model, and the GUI should be the view. What exactly is the controller in this case? Is it just a separate class that has all the functions that will be called when you, say, click on a tile? Why not just perform all the logic on the model in the view itself?

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  • Is there any practical use for the empty type in Common Lisp?

    - by Pedro Rodrigues
    The Common Lisp spec states that nil is the name of the empty type, but I've never found any situation in Common Lisp where I felt like the empty type was useful/necessary. Is it there just for completeness sake (and removing it wouldn't cause any harm to anyone)? Or is there really some practical use for the empty type in Common Lisp? If yes, then I would prefer an answer with code example. For example, in Haskell the empty type can be used when binding foreign data structures, to make sure that no one tries to create values of that type without using the data structure's foreign interface (although in this case, the type is not really empty).

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  • SysRq+REISUB hangs at "resetting" (without actually resetting/restarting) in Maverick

    - by Andrei
    I'm trying SysRq+REISUB to see how it would be used to restart my system safely in case of emergency. However, I find that SysRq+REISUB hangs at "resetting" (without actually resetting/restarting) in Maverick. All other SysRq combinations appear to work correctly (i.e. SysRq+REISU). cat /proc/sys/kernel/sysrq returns 0. But I'm not sure it's relevant because SysRq certainly works. What can I do to have "B" actually restart the system? Thanks!

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  • Storage and BackUp Strategies

    - by Chandra Vennapoosa
    Many of us are familiar with backing up our data.  While it sounds pretty simple, the fact is that most of the computer users do not backup their data. Some of the excuses which they often make involve how long it takes, how slow it is, or how many DVDs or disks they need. However, once disaster strikes, the loss that you will suffer by not having your data backed up can be very severe. Topics Introduction What is an Online Back Up? Online Back Up Strategies Implementing Disaster Avoidance Implementation and Storage Security Issues to Consider Reader complete article : Storage and BackUp Strategies

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  • Help with Zotac zbox nano ad10 mini pc ?

    - by Razor
    I have a Zotac Zbox nano ad10. I have it connected to a Samsung Syncmaster t220hd monitor via a HDMI cable for audio and sound, everything else works apart from sound. I have tired Ubuntu 11.04, 11.10, 12.04 beta 1, LinuxMint 12, Lubuntu 11.10, and other Linux distributions all with the same issue. On Zotac's website I don't see any Linux drivers to help the issue ? Please help, thank you in advance to everyone. I have also tried to install windows 7 on this same computer and the audio works fine. it just does not want to work with Linux.

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  • Absolutely Nothing Apearing in "Additional Drivers"

    - by Joshua Arroyo
    OK so I just got Ubuntu the other month or so. I'm running the 11.04 version currently and trying to install drivers for a Nvidia graphics card (it's my brother's computer and he currently cannot find the number of the card right now). I read that, to install the proper drivers for gaming, I would need to go into "Additional Drivers" and choose them myself. I clicked to go into "Additional Drivers" and it searched "for available drivers", then opened the additional drivers list. Lo and Behold, there was nothing, simply the message "No proprietary drivers are in use on this system" and the Help and Close buttons. Sorry if there's some silly simple answer to all of this, I'm new to this sort of thing (used to Windows simplicity, lol) and I really don't know what to do. Help would be much appreciated. Also, I should mention that the graphics card was installed and ran fine before switching from Windows XP to Ubuntu.

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  • Using a :default for file names on include templates in SMARTY 3 [closed]

    - by Yohan Leafheart
    Hello everyone, Although I don't think the question was as good as it could be, let me try to explain better here. I have a site using SMARTY 3 as the template system. I have a template structure similar to the below one: /templates/place1/inner_a.tpl /templates/place1/inner_b.tpl /templates/place2/inner_b.tpl /templates/place2/inner_c.tpl /templates/default/inner_a.tpl /templates/default/inner_b.tpl /templates/default/inner_c.tpl These are getting included on the parent template using {include file="{$temp_folder}/{$inner_template}"} So far great. What I wanted to do is having a default for, in the case that the file "{$temp_folder}/{$inner_template}" does not exists, it uses the equivalent file at "default/{$inner_template}". i.e. If I do {include file="place1/inner_c.tpl"}, since that file does not exists it in fact includes "default/inner_c.tpl" Is it possible?

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  • Launch a real install of Ubuntu already on another hard-drive in Windows 7 like a VM

    - by Chad M
    I'm not too familiar with VMs and the like so this may not even be possible. Here is what I have: A real, full install of Windows 7 on hard drive A. A real, full install of Ubuntu 10.04 on hard drive B. Grub allowing me to select what I want to launch when I start up my computer. It would be Amazing if I could do one of two things. Within Windows 7, launch my real install of ubuntu as if it were a VM. That means i would get all the installed software, all of the files, and all of the settings. Launch a VM copy of ubuntu 10.04 but some how make it use all of the installed software and settings from my real copy. Thanks!

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  • Hard drive and DVD drive are not being detected by the BIOS

    - by Shah Nsd
    My hard drive and DVD drive are not being detected by the BIOS when I go in to the boot option menu by pressing F12. When I put the hard drive in a different computer it's being detected. I am assuming it's either the mother board or the BIOS. Since the HDD is not being detected I have installed Ubuntu on a flash drive, but even that has become so slow, that it takes around 5 minutes for it to boot. I want to flash the BIOS before I think of changing the motherboard. I have downloaded the updated file and it has a flash.bat and a afudos.exe. I have to run the .bat file. I downloaded the Dos in a box and went to the DOS directory where the .bat file is and tried to run it, but it gives me the error message "This program cannot run under this operating system" Any help would be appreciated

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  • How to manage two video cards on a laptop that runs Ubuntu 10.10?

    - by Marc-François Cochaux-Laberge
    I have a laptop with two video cards. One ATI and on integrated Intel. On Windows, I can choose which video card I want to use. For example, I use the Intel card for normal use and for gaming, I switch to my ATI card for better performance, but a shorter battery life. In Ubuntu 10.10, only the Intel driver is installed, the ATI driver for my card doesn't work at all and there's heat coming out of my computer all the time, like when I'm playing video games on Windows. I think both cards are active, but only the Intel one is usefull. How can I solve this by making sure Ubuntu is aware of the two video cards and by disabling my ATI. Or may be I am all wrong about this?

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  • Simple 2d game pathfinding

    - by Kooi Nam Ng
    So I was trying to implement a simple pathfinding on iOS and but the outcome seems less satisfactory than what I intended to achieve.The thing is units in games like Warcraft and Red Alert move in all direction whereas units in my case only move in at most 8 directions as these 8 directions direct to the next available node.What should I do in order to achieve the result as stated above?Shrink the tile size? The screenshot intended for illustration. Those rocks are the obstacles whereas the both ends of the green path are the starting and end of the path.The red line is the path that I want to achieve. http://i.stack.imgur.com/lr19c.jpg

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  • HTG Explains: How Windows 8's Secure Boot Feature Works & What It Means for Linux

    - by Chris Hoffman
    Whether you plan on using Windows 8 or not, everyone buying a PC in the future will end up with the Microsoft-driven Secure Boot feature enabled. Secure Boot prevents “unauthorized” operating systems and software from loading during the startup process. Secure Boot is a feature enabled by UEFI – which replaces the traditional PC BIOS – but Microsoft mandates specific implementations for x86 (Intel) and ARM PCs. Any computer with a Windows 8 logo sticker has Secure Boot enabled. Image Credit: Kiwi Flickr HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization HTG Explains: What Is RSS and How Can I Benefit From Using It?

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  • Why does multiplying texture coordinates scale the texture?

    - by manning18
    I'm having trouble visualizing this geometrically - why is it that multiplying the U,V coordinates of a texture coordinate has the effect of scaling that texture by that factor? eg if you scaled the texture coordinates by a factor of 3 ..then doesn't this mean that if you had texture coordinates 0,1 and 0,2 ...you'd be sampling 0,3 and 0,6 in the U,V texture space of 0..1? How does that make it bigger eg HLSL: tex2D(textureSampler, TexCoords*3) Integers make it smaller, decimals make it bigger I mean I understand intuitively if you added to the U,V coordinates, as that is simply an offset into the sampling range, but what's the case with multiplication? I have a feeling when someone explains this to me I'm going to be feeling mighty stupid

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  • Is there any reason to use "plain old data" classes?

    - by Michael
    In legacy code I occasionally see classes that are nothing but wrappers for data. something like: class Bottle { int height; int diameter; Cap capType; getters/setters, maybe a constructor } My understanding of OO is that classes are structures for data and the methods of operating on that data. This seems to preclude objects of this type. To me they are nothing more than structs and kind of defeat the purpose of OO. I don't think it's necessarily evil, though it may be a code smell. Is there a case where such objects would be necessary? If this is used often, does it make the design suspect?

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  • Why prefer a wildcard to a type discriminator in a Java API (Re: Effective Java)

    - by Michael Campbell
    In the generics section of Bloch's Effective Java (which handily is the "free" chapter available to all: http://java.sun.com/docs/books/effective/generics.pdf), he says: If a type parameter appears only once in a method declaration, replace it with a wildcard. (See page 31-33 of that pdf) The signature in question is: public static void swap(List<?> list, int i, int j) vs public static void swap(List<E> list, int i, int j) And then proceeds to use a static private "helper" function with an actual type parameter to perform the work. The helper function signature is EXACTLY that of the second option. Why is the wildcard preferable, since you need to NOT use a wildcard to get the work done anyway? I understand that in this case since he's modifying the List and you can't add to a collection with an unbounded wildcard, so why use it at all?

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  • Codestock: Apparently Powershell ain't got the power

    - by Theo Moore
    I checked on the status of voting on the Codestock (www.codestock.org) site this week. I was surpised to see that none of the Powershell sessions were among leaders in voting. Now, I confess that I am somewhat biased (my session is on Powershell), but that said, I thought it odd. I was under the impression that Powershell had a strong following and that many people were using it. I suppose the voting reflects a stronger developer community that might not make use of Powershell to degree some others might. I am a huge fan of Powershell and I am constantly impressed with the things it can do. In my case, I use it as lightweight functional testing harness for web pages. I use it in this capacity at work and for work I do for the Carbonated Comics (www.carbonatedcomics.com) site as well. If anyone still hasn't registered, do us a favor and vote for a Powershell session, K?

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  • How do I change the language via a terminal?

    - by McGee
    Using system settings I changed my language to Arabic and deleted the English language from the settings. Then the computer lagged and it logged out - now I can't log back in because the login is in Arabic. So is there a way to default my language via terminal, default the login password language, or login via terminal which is still in English. I only have access to guest and a terminal. I changed the pasword to something that could be translated into arabic http://www.psychocats.net/ubuntu/resetpassword - then loged in and used system settings to default.

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  • Pointless Code In Your Source

    - by Ali
    I've heard stories of this from senior coders and I've seen some of it myself. It seems that there are more than a few instances of programmers writing pointless code. I will see things like: Method or function calls that do nothing of value. Redundant checks done in a separate class file, object or method. if statements that always evaluate to true. Threads that spin off and do nothing of note. Just to name a few. I've been told that this is because programmers want to intentionally make the code confusing to raise their own worth to the organization or make sure of repeat business in the case of contractual or outsourced work. My question is. Has anyone else seen code like this? What was your conclusion was to why that code was there? If anyone has written code like this, can you share why?

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