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• If you had the power to remove one thing in your daily job, what would it be?

  - by Pierre 303

  With nearly 60 answers to this question it's highly likely that your answer has already been posted. Please don't post an answer unless you have something new to say This can be a particular task you find not very useful, a manager behavior, your canteen, some security rule you must comply to, tools they want you to use, commuting, schedules, a customer, a technical problem you encouter all the time, anything, ... please be creative ;) One answer per thing. Explain why. Please vote up on other answers if appropriate.

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• Windows 8 Location Services

  - by ryanabr

  I spent the afternoon with the Geolocator object in the WinRT and Widows 8 platform. I have also been working with doing Windows Phone 7 development, and first had to wrap my head around the fact that while similar, it is not the same as the GeoCoordinateWatcher that environment. I found a nice example here http://code.msdn.microsoft.com/windowsapps/Geolocation-2483de66 But the behavior of my app wasn’t the same. Once you ensure that location services is enabled by following these instructions: http://msdn.microsoft.com/en-us/library/windows/desktop/hh768219.aspx Location Services was still disabled. From everything I read, it sounded like the first time you try to use the Geolocator object, the user would be prompted to allow to “Access to your location”. After nosing around I found the issue. You need to add the location service as a Capability in the Package.appxmanifest file: After checking the box, I was prompted to allow access to location services as expected the first time I needed to use it.

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• How to tell Wine that I have changed CD when mounting them virtually on a netbook with no CD drive?

  - by glenatron

  I have been trying to catch up with some of the old games from way back that are about right for my little Aspire One netbook through Wine. I've run into a problem Baldurs Gate, however, which is that I can't change CD. Obviously, I don't have a CD drive, so I have copied the CD content onto an external hard drive and I'm using a mount command with the loopback option to persuade the game that the CD is present. This allowed installation to work correctly and works fine to run it and to play the content from the first CD. However, when the game asks for CD2, I'm stuck. If I mount the CD2 ISO to the CD Rom path it doesn't appear to respond, whether or not I have first unmounted CD1. When I ask Wine to show me the CD drive it contains the right data, but it seems as though whatever signal would be interpreted by Windows to mean the CD drive has been closed isn't being sent. Does anyone know of a way to do this, or am I barking up the wrong tree and there is something else I need to do?

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• Learning the nuances of a language (C++)

  - by prelic

  So I'm a recent college graduate, and I really enjoy working in C++; I worked with it a lot in school, and would like to pursue a career writing in C or C++. The problem I'm having is that I'm trying to learn the nuances of C++. I'm not talking about the basics, or even advanced concepts like templates, namespaces, etc...I'm talking about the real nitty-gritty stuff like undefined behavior and stuff like that. When I'm interviewing, and they put a bizarre piece of C++ code in front of me, and ask me what the output will be, I want to be able to nail those questions. Obviously experience is a great way to learn, but when I write code for practice, I [obviously] know what it does. Reading open-source projects have been good practice, but I find that there tends to be an enormous learning curve just understanding the organization of the code (because the projects tend to be large). So basically what I'm asking is, what should I do now? Any tips are greatly appreciated!

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• What things to take into consideration when refactoring code?

  - by JustaPro

  Code refactoring is a "disciplined technique for restructuring an existing body of code, altering its internal structure without changing its external behavior" Could anyone explain this definition? I find it kind of blurry. Which is the best technique to do it? Are these the only ones? Which are the obstacles one would meet when refactoring code? What to take into consideration when switching between IDEs? Do tools which help refactoring exist? If yes, which one would you recommend using? Any references to links where I can find out more on this subject or to books that have been written are welcomed. The questions above are for any programming language, but specific examples are appreciated. Anything that would clarify this for me is.

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• Is there an apt command to download a deb file from the repositories to the current directory?

  - by Lekensteyn

  I am often interested in the installation triggers (postinst, postrm) or certain parts of packages (like /usr/share and /etc). Currently, I am running the next command to retrieve the source code: apt-get source [package-name] The downside is, this file is often much bigger than the binary package and does not reflect the installation tree. Right now, I am downloading the packages through http://packages.ubuntu.com/: Search for [package-name] Select the package Click on amd64/i386 for download Download the actual file This takes too long for me and as someone who really likes the shell, I would like to do something like the next (imaginary) command: apt-get get-deb-file [package-name] I could not find something like this in the apt-get manual page. The most close I found was the --download-only switch, but this puts the package in /var/cache/apt/archives (which requires root permissions) and not in the current directory.

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• Logout or shutdown shows terminal

  - by N.N.

  When I logout or shutdown the terminal (the one I reach with Ctrl Alt + F7) is sometimes shown before the login screen appears or before the computer is shut off. Is there a way to stop this behavior? More explicitly. If I logout the terminal is sometimes shown for a second before the login screen appears. Also, sometimes when I shutdown (from within Unity or Gnome) the terminal is shown, sometimes for the whole shutdown process or just for a second or two. I've had this problem throughout 10.04, 10.10 and 11.04 and I've always used the standard Ubuntu variant. I've also noticed this happening on a fresh install of Natty on a friends netbook, so it's not local to my computers.

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• writing an autopilot for a 2d game with newtonian physics

  - by Jargo

  The subject says it all. I am making a 2d space game with newtonian physics and I need pointers on how to write an autopilot for it. The requirements are best explained by an example. There is a target object which has speed- and position-vectors and there a spaceship that is controlled by the autopilot. This spaceship also have speed, position and maximum acceleration. The autopilot needs to control the ship that it either collides with the target, Or intercepts the target so that the ship has matching speed and position with the target. Could someone give me some pointers how to achieve this behavior or perhaps even an ready implementation? I am sure someone has written something like this before and there is no point in reinventing the wheel.

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• Restore the Ctrl + Alt + Num Pad windows positioning commands?

  - by holocronweaver

  Using Unity in Ubuntu 12.04, the Ctrl + Alt + Num Pad combination for positioning windows has been fragmented by Ctrl + Alt + 4 (move window to left half of screen) being changed to Super + Left Arrow. A similar change moved Ctrl + Alt + 6 to Super + Right Arrow. Thus one moves windows to corners using Ctrl + Alt combos, but Super combos are needed to move to the left or right. This is more than a convenience problem since the new windows positioning provided by the super key combos seems to give different sizes than the Ctrl + Alt combos they replaced, leading to distracting gaps between windows when you combine the two methods to position three or more windows on one screen. Is there a way to restore the previous behavior so that I can use Ctrl + Alt + Num Pad for all windows positioning?

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• ALSA Mutes Incorrect Audio Device on Headphone Event

  - by Gardiner

  I know what the problem is, I just don't know how to prevent it. When I plug in my headphones, ALSA automatically mutes (and sets the volume to 0) the 'Speaker' entry in alsamixer. If I go in and manually unmute (and turn the volume up) I have sound from my headphones. Question is, how do I change this behavior? I want it to adjust the volume to half, but not mute or set the volume to 0. I'm using Ubuntu Gnome 13.04 Output of amixer scontents Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] This answer solved my issue: How can I get sound on headphones without switching back to 'Speakers' manually?

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• Cocos2d iOS A* Star Path finding help

  - by user32581

  Hello I need help implementing this class https://github.com/sqlboy/tiled-games/tree/master/src into my iOS game. Im using the suggested code of: AStarPathFinder pathFinder = [[AStarPathFinder alloc] initWithTileMap:tileMap collideLayer:@"collide"]; // Optionally, you can set the name of the collide property key and the value it expects. [pathFinder setCollideKey:@"collidable"] // defaults to COLLIDE [pathFinder setCollideValue:@"True"] // defaults to 1 // highlight a path (src and dst are tile coorindates) [pathFinder highlightPathFrom:srcTile to:dstTile]; // move a sprite [pathFinder moveSprite:player from:srcTile to:dstTile atSpeed:0.1f]; I get the following error: Instance method '-initWithTileMap:collideLayer:' not found (return defaults to 'id') This is the official post for the class: http://www.cocos2d-iphone.org/forums/topic/just-pushed-a-cctmxtiledmap-a-pathfinding-class-to-github/ The only other code I added was: #import "AStarPathFinder.h" I think I am perhaps missing something! I am grateful for any help!

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• What can I do when the interviewer doesn't know the answer to his/her own question?

  - by bjskishore123

  Yesterday I had a terrible experience in an interview. Interviewer asked me about pure virtual function. I said, It may or may not have definition in base class, but derived classes should provide definition unless they also want to be abstract class. But interviewer kept on asking that "Can pure virtual have definition !!! ???"... I said yes. Again he said "Pure ?" I said yes. It is allowed, derived classes can explicitly call that function if they want that particular behavior. He sent me out. I am sure that he doesn't know the fact that pure virtual function can have definition. How to deal with this kind of Interviewers ? After asking 2nd time, should i lie that it can't have definition ? :) Or i should stick to my words and loose the job opportunity ?

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• How selective do we need to be for an index to be used?

  - by TiborKaraszi

  You know the answer already: It depends. But I often see some percentage value quoted and the point of this post is to show that there is no such percentage value. To get the most out of this blog post, you should understand the basic structure for an index, i.e. how the b+ tree look like. You should also understand the difference between a clustered and a non-clustered index. In essence, you should be able to visualize these structures and searches through them as you read the text. If you find...(read more)

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• Laptop wakes while lid is closed and overheats

  - by user56601

  I'm running 12.04 on a toshiba L305D with athlon x2 (Already suspect this has something to do with it). My laptop will wake from suspend, presumably from wireless scanning. This is a serious bug as sleeping laptops are often inside bags, so the cooling system is effectively disabled. I can no longer seriously use Ubuntu when I have to worry about hardware damage every time I close the lid. There is shockingly lack of information about anything close to this. So many control panels have been removed or dumbed down, and everyone seems to want this behavior instead of the opposite, for servers or torrents of whatever. Well, most laptop users will 99% be likely to regularly put their laptop in a backpack or briefcase or other bag. Does anyone know how to fix this?

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• Partner Webcast – Oracle Weblogic 12c for New Projects - 07 Nov 2013

  - by Roxana Babiciu

  Fast-growing organizations need to stay agile in the face of changing customer, business or market requirements.Oracle WebLogic Server 12c is the industry's best application server platform that allows you to quickly develop and deploy reliable, secure, scalable and manageable enterprise Java EE applications. WebLogic Server Java EE applications are based on standardized, modular components. WebLogic Server provides a complete set of services for those modules and handles many details of application behavior automatically, without requiring programming.New project applications are created by Java programmers, Web designers, and application assemblers. Programmers and designers create modules that implement the business and presentation logic for the application. Application assemblers assemble the modules into applications that are ready to deploy on WebLogic Server. Build and run high-performance enterprise applications and services with Oracle WebLogic Server 12c, available in three editions to meet the needs of traditional and cloud IT environments. Join us, in this webcast, as we will show you how WebLogic Server 12c helps you building and deploying enterprise Java EE applications with support for new features for lowering cost of operations, improving performance, enhancing scalability. Read more here

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• Changing Wallpaper on 12.04 Login Screen

  - by userIsAMonkey

  I'm using this link but seems to be not working on 12.04, here's the Terminal message below: Are there other softwares/tips for changing the login screen? I'm also using link but seems outdated. Failed to fetch http://ppa.launchpad.net/claudiocn/slm/ubuntu/dists/precise/main/source/Sources 404 Not Found W: Failed to fetch http://ppa.launchpad.net/claudiocn/slm/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/claudiocn/slm/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead. law@ubuntu:~$ sudo apt-get install simple-lightdm-manager Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package simple-lightdm-manager

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• How can I disable update checking on boot?

  - by Chauncellor

  I'm running off of a thumb drive with very average read/write speeds and automatic update checks makes the bootup far less pleasant. Since I manually update via apt there's truly no need to notify me like on a normal desktop. In older versions of Ubuntu there was an item to disable this behavior. On 12.04 this is no longer the case. would it be the 'unattended-upgrades' item in /etc/init.d? If yes, would simply removing the init script would solve my problem?

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• Rewriting software using Agile methodologies

  - by Asier

  Suppose you have to rewrite an entire application using Agile methodologies, how would you do it? I guess you could write a big bunch of user stories based in the behavior of your current system. And then implement them in small iterations. But this wouldn't mean that we have the requirements UP FRONT?? Also, when would you start releasing? Agile says we should release early and often, but it doesn't make much sense to release before the complete rewrite has been completed. Anybody has used Agile before to rewrite software? How did you do it?

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• Excel duration converts to date

  - by Malcolm Anderson

  I'm working on an Excel 2010 spreadsheet and I'm trying to put in durations for some tasks I want to schedule.The interesting thing is that up until a few minutes ago, I couldn't do it.I was entering in "47:00" and excel was (and still is) converting it to "1/1/1900 23:00:00"In my mind, I want the value to be 47 minutes, but for the life of me I cannot find a fix for this behavior.Here's the weirdest thing, I haven't had this problem in the past.  Usually I put in times, add them up and they work like magic.  Put in 18 entries of 20 minutes each, total them and excel will usually tell me that it's a total of 6 hours.No problem.Today, problem.Here's the weird bit:As I was writing this post, I got it to work.By formatting the column as custom "[hh]:mm" and summing the columns, I can get total times.But the times are still being formatted into dates if I look at the underlying data.  Bottom line, if you need to calculate durations, you can, but don't look too closely at what is happening underneath the covers.

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• Unity, Unrealistic Sphere On Inclined Plane

  - by user1086516

  So I am trying to model a ball rolling down an inclined surface in Unity based on what I am observing in real life but it is still quite off. In Unity it takes the ball about 3 seconds to travel from a place to another specified place where in real life it only takes 1 second. The ball isn't as fast to react to the incline as in real life (even though I have tried giving the ball and surface low or zero friction values) The ball does not accelerate as nearly as fast as it does in real life What do I do to give the ball more realistic behavior ? I have tried messing around with mass, physics materials, drag, and angular drag on the ball and surface but it doesn't seem to be helping.

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• Unable to install cedarview-graphics-drivers

  - by antnchv

  $ sudo apt-get install cedarview-graphics-drivers Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: cedarview-graphics-drivers : Depends: xserver-xorg-core (= 2:1.10.99.901) Depends: xorg-video-abi-11 E: Unable to correct problems, you have held broken packages. Please advice.

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• When to use event.initMouseEvent for simulating mouse clicks?

  - by Protector one

  I wonder if there are benign use-cases for simulating mouse clicks using event.initMouseEvent. I found that it is used for creating pop-under ads in the following way: var e = document.createEvent('MouseEvents'); e.initMouseEvent('click', true, true, window, 0, 0, 0, 0, 0, true, false, false, true, 0, null); a.dispatchEvent(e); This code simulates a click on the opening browser window, to force the newly opened window beneath it. Evil. I'm thinking of simply preventing all simulated clicks in my own browser via a browser extension, but I wonder if I might break useful websites and behavior in the process. Therefore I wonder what situations justify simulating mouse clicks, and if there are big sites that use it in non-evil ways.

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• How do I get the name of a package, modify and install it?

  - by Ken

  I'm not very familiar with Ubuntu or Linux, but I'm a programmer, and some people told me that you can just go ahead and modify your system. So my question is, how do you go on about that? For instance, If I'm interested in modifying the behavior of the button or the desktop icons, or whatever it is: How do I get the source code? I guess I need the package name and download it. But how can I get the package name? Let's say I want the button package, where do I look to get the package name? is there a list on a website or a help file? Once I modify it, how can I replace the original with the new one? P.S. I had some troubles finding the right tags, feel free to edit them

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• How to specify ingredients in Schema.org (other than recipes or drugs)?

  - by guillem

  I'd like to use Schema.org for a series of product specs pages. The products are cosmetics (shampoos, creams, etc.) and ideally an INCI declaration will be included for every product. I'd like to use Schema.org in the declaration, but I cannot find a suitable category in Schema.org. Ingredients is meant for cooking recipes, and ActiveIngredient for (medical) drugs and dietary supplements. Did I overlook some part of the tree? Any ideas for a workaround? Or am I trying to do something out of scope?

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• Implement an FTP server (no threads) - how to start?

  - by ironicaldiction

  As a semester project, I have the following specification: Write a simple single threaded ftp server. The ftp server is configurable from a configuration file. The config allows to set the interface (where the server listens), the roots of the served content, transfer log, and database of users and its passwords. The server allows to create a virtual filesystem. By a virtual filesystem, we mean a mapping of a served directory to the real directory on the filesystem. For example, the client tree will look like: /home/user1 maps to /mnt/x/home/user1 /www maps to /var/cache/www /home/user_list.txt maps to /var/ftpclient/user_list.txt The user will see /home/user1 directory and /www directory and the file /home/user_list.txt The course is in C++. The projects to this point have provided a lot of structure, such as a class header file to get you started on the program. My question is this: how can I get started on what seems like quite a massive project (I have 3 weeks to return a working implementation)?

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