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• C# Interview Preparation - References?

  - by Kanini

  This is a specific question relating to C#. However, it can be extrapolated to other languages too. While one is preparing for an interview of a C# Developer (ASP.NET or WinForms or ), what would be the typical reference material that one should look at? Are there any good books/interview question collections that one should look at so that they can be better prepared? This is just to know the different scenarios. For example, I might be writing SQL Stored Procedures and Queries, but I might stumble when asked suddenly Given an Employee Table with the following column(s). EmployeeId, EmployeeName, ManagerId Write a SQL Query which will get me the Name of Employee and Manager Name? NOTE: I am not asking for a Question Bank so that I can learn by rote what the questions are and reproduce them (which, obviously will NOT work!)

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• Successful technical communities except for open-source?

  - by Joshua Fox

  Have you ever seen a successful technical community -- e.g. user group, industry organization? Am I asking about a group of software engineers who get together F2F (or maybe online) and discuss technical and industry issues with deep zeal and interest -- a place where meaningful connections are made. Here are the only examples I have ever seen: Open source Maybe the Silicon Valley Java Users' Group Homebrew Computing Club in the '70's This sort of thing does exist in academia. Of course, there are lots of conferences and attempts at user's groups. However, almost all committed, serious software engineers, when asked about this, say "I don't have the time", which means that the organizations are not worthwhile to the best in our profession. Has anyone seen any organizations with an ongoing spirit of enthusiasm from top software engineers?

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• wireless connection will not authenticate with verizon adsl router

  - by eric

  hello, i have ubunto 10.10 running on an old dell xps system. when i set it up i had internet through my home wifi router on my cable modem. now the dell is at another home with an ADSL wifi router from verizon. we have entered the ssid and wep key as given from the adsl router. the other windows computers connect with the wep key and automatic detection. the ubuntu dell detects the connection but does not autenticate, keeps asking for wep key. i have tried diferent settings regarding wep, wpa, wep with hex and asci, still no results. what am i doing wrong? help please. thanks.

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• Web Developer or Software Engineer?

  - by Deepesh

  A question that I have been asking myself and really confused which path to take. So I need your guys help as to the pros and cons of these 2 professions in today's world. I love web applications development as the Web is the best thing to happen in this age and nearly everyone gets by on the World Wide Web. And also tend to keep learning about new technologies and about web services. On the other hand I like software engineering also for the desktop applications as I have had experience with development small scale softwares in VB.Net, Java, C++, etc. Which path has more scope and better future? Whats your view?

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• What package do I need to build a Qt 5 & CMake application?

  - by Kevin Reid

  I'm trying to build sdrangelove, which wants Qt 5 and uses CMake for its build system, on Ubuntu 13.10. What package do I need to install to give it the file it's asking for here? There are a lot of *qt5* packages, and I've tried installing the promising looking ones to no effect. All the discussions I've found either have things working fine or are talking about writing CMake build rules rather than executing them. I don't have a lot of experience with the organization of Debian/Ubuntu packaging. CMake Error at CMakeLists.txt:14 (find_package): By not providing "FindQt5Core.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "Qt5Core", but CMake did not find one. Could not find a package configuration file provided by "Qt5Core" (requested version 5.0) with any of the following names: Qt5CoreConfig.cmake qt5core-config.cmake Add the installation prefix of "Qt5Core" to CMAKE_PREFIX_PATH or set "Qt5Core_DIR" to a directory containing one of the above files. If "Qt5Core" provides a separate development package or SDK, be sure it has been installed.

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• Why is C++ predominant in programming contests and competitions?

  - by daniels

  I understand that C++ is a very fast language, but ain't C just as fast, or faster in some cases? Then you might say that C++ has OOP, but the amount of OOP you need for most programming puzzles is not that big, and in my opinion C would be able handle that. Here's why I am asking this: I am very interested in programming contests and competitions, and I am used to coding in C on those. However, I noticed that the vast majority of people use C++ (e.g., 17 out of 25 finalists on Google Code Jam 2011 used it, while no one used C), so I am wondering if I am at a disadvantage going with C. Apart from the Object Orientation, what makes C++ a more suitable language for programming competitions? What are the features of the language I should learn and use to perform better on the competitions? For background, I consider myself pretty proficient in C, but I am just starting to learn C++.

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• is the AOC e2239fwt supported for multi touch on any ubuntu distro?

  - by HybriDPjT

  as the title says i have the e2239fwt monitor and ive tried ubuntu 10.04, 10.10, 11.04, 12.04 and now 13.04 and i cant get it to work. i should state that the single point touch seems to work ok but thats all. ive already tried looking and found no answers so here i am asking the peeps in the know :) i am currently running 13.04 and possibly going back to 10.04 if i cant get it to work or find that this monitor is in fact not supported.. hybridpjt@Unicorn:~$ lsusb Bus 002 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub Bus 003 Device 002: ID 045e:0780 Microsoft Corp. Bus 003 Device 003: ID 06a3:0cc3 Saitek PLC Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 003: ID 0408:3001 Quanta Computer, Inc. Optical Touch Screen

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• Best practices for managing deployment of code from dev to production servers?

  - by crosenblum

  I am hoping to find an easy tool or method, that allow's managing our code deployment. Here are the features I hope this solution has: Either web-based or batch file, that given a list of files, will communicate to our production server, to backup those files in different folders, and zip them and put them in a backup code folder. Then it records the name, date/time, and purpose of the deployment. Then it sends the files to their proper spot on the production server. I don't want too complex an interface to doing the deployment's because then they might never use it. Or is what I am asking for too unrealistic? I just know that my self-discipline isn't perfect, and I'd rather have a tool I can rely on to do what needs to be done, then my own memory of what exact steps I have to take every time. How do you guys, make sure everything get's deployed correctly, and have easy rollback in case of any mistakes?

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• JustMock and Moles A short overview for TDD alpha geeks

  People have been lurking near my house, asking me to write something about Moles and JustMock, so Ill try to be as objective as possible, taking in the fact that I work at Typemock. If I were NOT working at Typemock Id write: JustMock JustMock tries to be Typemock at so many levels its not even funny. Technically they work the same and the API almost looks like its a search and replace work based on the Isolator API (awesome compliment!), but JustMock still has too many growing pains and bugs...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• unable to add/remove program in Ubuntu 12.04 LTS?

  - by Manish Kumar Chauhan

  ** my problem is as following: unable to add/remove any program using either update-manager or Synaptic Package Manager or terminal update-manager is asking for partial upgrade and while updating software-center 5.6.2 catalog , there is no progress beyond the line "this is may take a moment" synaptic is unable to obtain an exclusive lock, similarly can't do terminal command sudo apt-get update if i try to break down the lock using the command sudo fuser -cuk /var/lib/dpkg/lock; sudo rm -f /var/lib/dpkg/lock it turns off my monitor display and i have to restart the whole system. note: this whole trouble started ,when i found ubuntu software-center missing after adding a repository and reinstalled it. **

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• How do I document my code?

  - by Brian Ortiz

  I'm a hobbyist programmer (with no formal education) looking to start doing small freelance jobs. One of the things that hobbyist programmers can get away with that those with a "real" job can't is lack of documentation. After all, you wrote it so you know how it works. I feel a little silly asking because it seems like such a basic thing, but how do I document my code? How should it be formatted? How should it be presented? (HTML pages? LaTeX?) What does/doesn't need to be documented? ...And maybe more specifics I haven't thought of. I mostly program in PHP but also C#.

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• cannot use sudo on ubuntu server passwordless authentication?

  - by Lucas Crijns

  Hello I'm new at the forum and I want to introduce myself: I'm Lucas Crijns and I'm a very happy user of ubuntu server. I was reading about passwordless authentication with ssh. So I made a key and published it to ubuntu server, it worked well and I could login with my private key. But then I locked the account to prevent hacking from my password. After I ran "passwd -l lucas", I was not longer able by my next login to use sudo. Because it was asking for a password and I locked it. I was thinking that sudo would also be without a password. My question is now: is it possible to use sudo? And how can I enable it without a valid password for sudo? Thank you for your help!

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• Which paradigm to use for writing chess engine?

  - by poke

  If you were going to write a chess game engine, what programming paradigm would you use (OOP, procedural, etc) and why whould you choose it ? By chess engine, I mean the portion of a program that evaluates the current board and decides the computer's next move. I'm asking because I thought it might be fun to write a chess engine. Then it occured to me that I could use it as a project for learning functional programming. Then it occured to me that some problems aren't well suited to the functional paradigm. Then it occured to me that this might be good discussion fodder.

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• Design Patterns: Should I learn them?

  - by prelic

  So it's kinda weird asking two questions back-to-back, but they aren't very related and I didn't want to combine them, but I'm not spamming questions, I promise! Anyway, I'm a recent college grad, and my education only touched on design patterns...we implemented a few simple ones, touched on the fact that there were more complicated ones, and were instructed to turn to the GoF book if we wanted to learn more. My question is, is it worth learning the patterns in the GoF book? To me, it's always seemed counter-intuitive to try and make a problem fit a classic pattern, but obviously the book, and the patterns, are famous for a reason. Do they show up enough that I should be learning them? Thanks again!

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• CloudFlare DNS: Downtime failover host

  - by Dr. McKay

  My company uses CloudFlare for its DNS, but as our site is HTTPS-secured and we're on the free plan, we can't utilize CloudFlare's CDN services. Our host has fairly rare but not insignificant downtime. We can't migrate servers just yet, and I'd like to be able to either have the main domain redirect to the status domain, or simply resolve to the alternative status host in the event of downtime so users will stop bugging me asking if the site is down. Is this possible to do automatically using the free CloudFlare plan, or will I have to manually edit my DNS every time the site goes down?

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• Uploading a file automatically for speed test?

  - by Abhi

  I am building a Web UI for a device for internet connection and one of the requirements in it is a speed test. I know the basic concept of how speed test works. A file is downloaded for a limited time then the same file is uploaded again and the speed is tracked at regular intervals. Downloading the file is not an issue, but how am I supposed to upload the file without the client knowing that the file is getting uploaded? I've read through a lot of documentation, but I'm still not able to get the answer to how I will upload the file from clients machine without asking him to select the file.

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• How do I prevent an external monitor from shutting off when closing my laptop lid?

  - by Thom

  I've seen this issue on previous versions of Ubuntu, but not on 12.04 and some of those are resolved bugs, so I'm asking again. I've set up power management so that, when plugged in, my laptop does nothing when the lid is closed. I do this so that I can use as a desktop with my external monitor with the screen closed and the laptop scurried away from my desktop. I tried turning off the laptop monitor to see if that made a difference, but it doesn't. The problem is that closing the lid still shuts off my external monitor. What can I do to prevent this?

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• Using subdomains or directories for main categories?

  - by Matthieu

  I have a website which references places to travel to in the world. Those places are (of course) grouped by countries. Here is an example of an actual URL of my website: http://awespot.org/country/105/iceland I am wondering if it would be better, in terms of SEO, to have the countries separated in subdomains: http://iceland.awespot.org/ I know subdomains are considered by Google as different websites, so I am considering the 2 options: separating would mean also separating the pagerank and benefits of links to the website but separating would enable me to create a "web" or related websites (all related to travel and all) that link and benefit to each other I am only asking about SEO here, I know there are other questions raised by this possibility (user experience, administration... even password completion by web browsers)

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• How to make Windows boot first?

  - by Rani.Shemer

  I want to know how to make Windows the default boot OS in Ubuntu 11.10, how to make Windows boot first on GRUB2, specifically for Windows 7, which is my current version. I know that are some tutorials about this, but it seems that I made a mistake, so I'm asking. Luckily nothing serious happened. I didn't lose my data. The difference between my question and the tutorials is that the tutorials are from older version. Sorry for any disturbs and redundancy of the question. I'll love it better for a GUI app that making easy the boot. P.S: I forgot to say the version of my OS's I am running Windows 7 Home Premium X64 bit Ubuntu 11.10 X64 bit I hope this will make understand better because I now saw it a tutorial that for 64 bit versions Startup-Manager doesn't work.

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• Using C++11 for cross-platform Game Engine Development

  - by Samaursa

  Note: This is not a 'give your opinion' question about C++03 and C++11. Our game engine, written in C++03, is designed to be compiled on Windows, OSX and iOS. Linux support is planned for the (very) near future. Our experience is limited when it comes to consoles, which is why I am asking this question. Currently, we are debating whether switching to C++11 and using non-compatible features of the C++11 standard could pose a problem in the near future when we need to port our engine to any of the current gen consoles (perhaps the compilers supported by some console(s) do not support C++11 yet? We don't know...). So, game developers who have experience across multiple platforms and consoles, do you think we should stick to C++03 until the new generation of consoles arrive and most everybody has switched to C++11 standard (have they already?). Or are most consoles using/support compilers (VC++, GCC or variants?) that are already supporting C++11 features?

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• Narrowing down my large keyword list for new PPC campaign

  - by gijoemike

  If I have a list of 100 keywords that are candidates for a PPC campaign (my list is actually 1000+). What is the best approach to narrowing this down to the top 5-10 keywords I should start with? I'm also wondering if my top chosen keywords for PPC campaign should be my main keywords for SEO site optimization for organic traffic. I also have another question on this site asking: How does one estimate where a competitor is getting most of their traffic from? Thanks. The website isn't created yet, but will be up in January.

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• Updated the Whiteboard Demo

  - by Bobby Diaz

  Just a quick update to let everyone know that I have updated the Whiteboard demo application.  I added a few options to make it more interesting to use!  I showed it to the kids and they loved it (even though they kept asking ME to draw pictures for them)!   Here is a list of available options: Color Picker for line color Slider for line thickness Save to XML file Open saved drawing Clear whiteboard Hold down ESC key to erase And here is a screenshot of my beautiful artwork! :) So what are you waiting for?  Go play with the Live Demo (and be sure to share with the kids) or download the source code. Enjoy!

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• Easy user management on html site?

  - by James Buldon

  I hope I'm not asking a question for which the answer is obvious...If I am, apologies. Within my html site (i.e. not Wordpress, Joomla, etc.) I want to be able to have a level of user management. That means that some pages I want to be only accessible to certain people with the correct username and password. What's the best way to do this? Are there any available scripts out there? I guess I'm looking for a free/open source version of something like this: http://www.webassist.com/php-scripts-and-solutions/user-registration/

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• T-SQL Tuesday - IO capacity planning

  - by Michael Zilberstein

  This post is my contribution to Adam Machanic's T-SQL Tuesday #004 , hosted this time by Mike Walsh . Being applicative DBA, I usually don't take part in discussions which storage to buy or how to configure it. My interaction with IO is usually via PerfMon. When somebody calls me asking why everything is suddenly so slow on database server, "disk queue length" or "average seconds per transfer" counters provide an overwhelming answer in 60-70% of such cases. Sometimes it can be...(read more)

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• How important is to sacriface your free time for accomplishing goals? [closed]

  - by Darf Zon

  I was reading a book about XP programming and about agile teams. While I was reading, I saw this scenario. I've never worked with a development team (just in school). So I would like what do you opine on this situation: Your boss has asked you to deliver software in a time that can only be possible to meet the project team asking if you want to work overtime without pay. All team members have young children. Discuss whether it should accept this request from your boss or should persuade the team to give their time to the organization rather than their families. What could be significant factors in the decision? As a programmer, you are offered an upgrade as project manager, but his feeling is that you can have a more effective contribution in a technical role in one administrative. Write when you should accept that promotion. Somethimes, I sacrifice my free time for accomplishing hits at work, so it's very important to me to know your opinion base of your experience.

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