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• Ubuntu 13.04 Eclipse 3.8.1 fresh install..cannot read Eclipse help files..ideas?

  - by Mystic38

  I have recently setup a dual boot windows 7 /Ubuntu 13.04. Problem: I installed eclipse from the Ubuntu software center. Eclipse opens fine, but when i attempt to access the help i get a "server error 500".. What i know: the help file is located locally and read via the browser.. any ideas?.. nb.. novice linux user, happy to try anything to provide more data, ppls just be specific (ie assume i know zilch..) update jun 30th.. Although not an answer to this question, i have patched a working solution by removing the version of eclipse supplied by the Ubuntu software center and installing from eclipse.org.. details at http://ubuntuforums.org/showthread.php?t=2157452 thanks

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• How to use UILongPressGestureRecognizer with sprite drag & wait?

  - by ganesh

  May be it's asked before also but I couldn't find any good answer. Please tell me how this can be implemented with UILongPressGestureRecognizer? A user drags a sprite from X location to Y location. Then it waits at Y location (touch is not ended yet) for 1 or 2 secs and release the touch i.e touch is ended. In this case, shouldn't following states be triggered in below order for UILongPressGestureRecognizer: UIGestureRecognizerStateBegan UIGestureRecognizerStateChanged UIGestureRecognizerStateEnded ? My problem is if UIPanGestureRecognizer is also implemented to handle drags, UILongPressGesture is never triggered even after Long waits. Any thoughts?

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• User defined type for healthcare / Medical Records variable name prefixes?

  - by Peter Turner

  I was reading Code Complete regarding variable naming in trying to find an answer to this question and stumbled on a table of commonly accepted prefixes for programming word processor software. Well, I'm not a word processor software programmer, but if I was, I'd be happy to use those user defined types. Since I'm a programmer for a smallish healthcare ISV, and have no contact with the larger community of healthcare software programmers (other than the neglected and forsaken HealthCareIT.SE where I never had the chance to ask this question). I want to know if there is a coding convention for medical records. Like Patient = pnt and Chart = chrt and Medication = med or mdctn or whatever. I'm not talking full on hungarian notation, but just a standard that would fit in code complete in place of that wonderful chart of word processor UDT's which are of so little use to me.

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• How are buttons made to be clicked?

  - by Johnny

  I just want to ask a general question. According to that answer, Ill continue thinking. You know in games there are lots of clickable items. Play button, exit, comboboxes maybe etc. My question is are those buttons drawn in same canvas with background and all other things, or for every different thing there is another canvas object? My question is about for general. Im not asking about a specific game, im asking how they are made generally. Im planning to start a game on Android, and Im confused actually how to design buttons, and other object. Probably Im going to use View/SurfaceView for now. I don't have much experience with OpenGL yet. Thanks in advance.

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• How to set default Java version?

  - by Matteo

  I have followed all the instructions stated at this question, but am encountering some problems with the last part of it. I actually have version 6.22 of java and would like to update to version 6.30. So after moving the extracted directory java-6-oracle into /usr/lib/jvm I do not know what to do, since the script that is pointed out in the answer above updates from java 5 to java 6. For sake of clearness here is output if I do an ls in dir /usr/lib/jvm: matteo@matteo-ThinkPad-SL:/usr/lib/jvm$ ls -l total 8 lrwxrwxrwx 1 root root 14 2011-07-12 15:18 default-java - java-6-openjdk lrwxrwxrwx 1 root root 14 2011-07-12 12:19 java-1.6.0-openjdk - java-6-openjdk drwxr-xr-x 10 root root 4096 2012-04-12 12:06 java-6.31-oracle drwxr-xr-x 7 root root 4096 2012-02-24 14:43 java-6-openjdk What should I do now?

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• How do I implement a score database in Android?

  - by Michael Seun Araromi

  I making a 2D game for Android using OpenGL-ES technology. It is a space shooting game where the player shoots enemy ships. I want to keep a track of score for the amount of enemy ships destroyed and a record of a local highscore. The score should be incremented whenever an enemy is destroyed. I also want a way of displaying both the current score and highscore on the game screen. I am not familiar with databases at all and I will appreciate a clear answer or a link to a good tutorial for my cause. Thanks.

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• C#/.net features to cut off assuming no backward compatibility needed?

  - by Gulshan

  Any product or framework evolves. Mainly it's done to catch up the needs of it's users, leverage new computing powers and simply make it better. Sometimes the primary design goal also changes with the product. C# or .net framework is no exception. As we see, the present day 4th version is very much different comparing with the first one. But thing comes as a barricade to this evolution- backward compatibility. In most of frameworks/products there are features would have been cut off if there was no need to support backward compatibility. According to you, what are these features in C#/.net? Please mention one feature per answer.

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• Why Does Chrome Have So Many Open Processes?

  - by Jason Fitzpatrick

  If you’ve ever taken a peek in Task Manager while running Google Chrome, you may have been surprised to see that the number of chrome.exe entries radically exceeded the number of actual Chrome windows you had open. What’s the deal with all those processes? Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-drive grouping of Q&A web sites. HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It HTG Explains: How Windows Uses The Task Scheduler for System Tasks

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• How to explain to non-technical person why the task will take much longer then they think?

  - by Mag20

  Almost every developer has to answer questions from business side like: Why is going to take 2 days to add this simple contact form? When developer estimates this task, they may divide it into steps: make some changes to Database optimize DB changes for speed add front end HTML write server side code add validation add client side javascript use unit tests make sure SEO is setup is working implement email confirmation refactor and optimize the code for speed ... These maybe hard to explain to non-technical person, who basically sees the whole task as just putting together some HTML and creating a table to store the data. To them it could be 2 hours MAX. So is there a better way to explain why the estimate is high to non-developer?

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• Read only array, deep copy or retrieve copies one by one? (Performance and Memory)

  - by Arthur Wulf White

  In a garbage collection based system, what is the most effective way to handle a read only array if such a structure does not exist natively in the language. Is it better to return a copy of an array or allow other classes to retrieve copies of the objects stored in the array one by one? @JustinSkiles: It is not very broad. It is performance related and can actually be answered specifically for two general cases. You only need very few items: in this situation it's more effective to retrieve copies of the objects one by one. You wish to iterate over 30% or more objects. In this cases it is superior to retrieve all the array at once. This saves on functions calls. Function calls are very expansive when compared to reading directly from an array. A good specific answer could include performance, reading from an array and reading indirectly through a function. It is a simple performance related question.

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• TypeScript Resources

  - by csmith18119

  TypeScript looks like a great start to evolving javascript.  I am going to start playing with it seeing what it is like.  This is the post I will update will all the resources I've found. Welcome to TypeScript - The TypeScript Language has an offical site, and this is it. This site does a nice job of giving the key information about the language and its uses, as well as highlighting that it is an open source project, which is cross platform. TypeScript is still causing quite a buzz in the community, here are some more of peoples initial impressions: Introducing TypeScript - Rob Eisenberg Why does TypeScript have to be the answer to anything? - Scott Hanselman TypeScript (or the obligatory post about it) - Shawn Wildermuth TypeScript project in Visual Studio 2012 - Linvi Microsoft TypeScript : A quick introduction and A Love Affair Begins here. - Anoop Madhusudanan Microsoft TypeScript : A Typed Superset of JavaScript & Using TypeScript in ASP.NET MVC Projects - Shiju Varghese Hello TypeScript - Getting Started - Sumit Maitra

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• Best way to prevent Google from indexing a directory [duplicate]

  - by Gkhan14

  This question already has an answer here: Stopping Google index some web pages I have 5 answers I've researched many methods on how to prevent Google/other search engines from crawling a specific directory. The two most popular ones I've seen are: Adding it into the robots.txt file: Disallow: /directory/ Adding a meta tag: <meta name="robots" content="noindex, nofollow"> Which method would work the best? I want this directory to remain "invisible" from search engines so it does not affect any of my site's ranking. In other words, I want this directory to be neutral/invisible and "just there." I don't want it to affect any ranking. Which method would be the best to achieve this?

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• Which is more maintainable -- boolean assignment via if/else or boolean expression?

  - by Bret Walker

  Which would be considered more maintainable? if (a == b) c = true; else c = false; or c = (a == b); I've tried looking in Code Complete, but can't find an answer. I think the first is more readable (you can literally read it out loud), which I also think makes it more maintainable. The second one certainly makes more sense and reduces code, but I'm not sure it's as maintainable for C# developers (I'd expect to see this idiom more in, for example, Python).

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• Landed Cost Management Integration with OPM Financials

  - by Robert Story

  Upcoming WebcastTitle: Landed Cost Management Integration with OPM FinancialsDate: April 21, 2010 Time: 11:00 am EDT, 9:00 am PDT, 8:00 am MDT Product Family: EBS: Process Manufacturing Summary This one-hour session will present setup overview and detailed steps for a test case, and is recommended for functional users who are using OPM Financials module with an actual costing method. Topics will include: Overview on Landed Cost Management functionality Setup steps and a test case Some technical considerations Documentation and other reference materials available A short, live demonstration (only if applicable) and question and answer period will be included. 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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• Java - learning / migrating fast

  - by Yippie-Kai-Yay

  Hello! This is not one of those questions like "How do I learn Java extremely fast, I know nothing about programming, but I heard Java is cool, yo". I have an interview for a Java Software Developer in a couple of weeks and the thing is that I think that I know C++ really good and I am somewhat good at C# (like, here I can probably answer on a lot of questions related to these languages), but I have almost zero experience with Java. I have a lot of projects written in both languages, I participiated in several open-source projects (mostly C++, though). Now, what should I do (in your opinion) to prepare myself for this Java interview. I guess migrating from C# to Java should be kind of fast, especially when you know a lot about programming in global, patterns, modern techniques and have a lot of practical experience behind you. But still two weeks is obviously not enough to get Java in-depth - so what should I focus on to have the best chances to pass the interview? Thank you.

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• Restoring Databases

  - by Grant Fritchey

  I like the way Mike Walsh phrased it: You're Only As Good as Your Ability To Restore. Ain't it the truth. You may be taking backups, incrementals, and log backups of your databases. You may have DBCC in place, and all that fun stuff. But if you haven't restored the database, what do you have? You don't know. The trick is, restoring databases takes up a heck of a lot of space on your servers. To test all your productions backups, you'd need a system with as much space as production. unless.. Ever heard of SQL Virtual Restore? Check it out. With this, you answer Mike's questions and validate your backups without having to have twice the amount of space. That's a win, and we all know, winning is better than losing.

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• Mplayer can't play *.wmv file

  - by Jimmy

  I have a problem when I use the mplayer to play *.wmv file on my ubuntu11.10. There are some error messages here. Could anyone can help me solve this problem. I use some keyword to search in Gooele, but I can't find the answer. Thank you. Playing testmovie.wmv. ASF file format detected. [asfheader] Audio stream found, -aid 1 [asfheader] Video stream found, -vid 2 VIDEO: [WMV3] 1280x720 24bpp 1000.000 fps 4000.0 kbps (488.3 kbyte/s) Load subtitles in ./ open: No such file or directory [ MGA] Couldn't open: /dev/mga_vid open: No such file or directory [MGA] Couldn't open: /dev/mga_vid [VO_TDFXFB] Can't open /dev/fb0: Permission denied. [VO_3DFX] Unable to open /dev/3dfx. [vdpau] Error when calling vdp_device_create_x11: 1 ========================================================================== Opening video decoder: [dmo] DMO video codecs DMO dll supports VO Optimizations 0 1 DMO dll might use previous sample when requested MPlayer interrupted by signal 11 in module: init_video_codec I am using xv as my video driver.

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• XML: Multiple roots + text content outside the root. Does anyone do it?

  - by Jeffrey Sweeney

  I have another one of those "is it done in XML" questions (my last one about xml comments hasn't been answered if anyone has a good explanation) I was just wondering if anyone, anywhere would: Use multiple root elements in an XML document Put text content outside of a root element W3C discourages these practices, Javascript's DOMParser doesn't even allow these cases, and I can't think of one sane reason to do either of these things. However, I know how bizarre some implementations of XML have been, so I wouldn't be surprised. Does anyone have any real world examples where this would be done? I will also accept an answer that specifies if other mainstream parsers allow doing either of these.

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• Why do I have man pages of commands that don't exist?

  - by Robert Vila

  What is panel-test-applets for?? I don't know. But if I want to know I type: $ whatis panel-test-applets The answer is: panel-test-applets (1) - display installed applets I have the man page too, and I can read it: $ man panel-test-applets But there is no program with that name. Maybe the command is not very useful, but is its man page more useful? Does someone know how to install that program or what is its man page for when you cannot execute the program? I can't even execute the command: $ panel-test-applets nor $ panel-test-applets --help which is the only thing its man page talks about!!

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• What should my "code sample" look like?

  - by thesunneversets

  I've just had quite a good phone interview (for a CakePHP-related position, not that it's especially important to the question). The interviewer seemed to be impressed with my resume and personality. At the end, though, he asked me to email him a code sample from my existing work project, "to check you're not secretly a terrible programmer, ha ha!" I'm not too worried that my code can't stand on its own two feet, but I'm very much an intermediate programmer rather than an expert. What obvious pitfalls should I make sure my code sample doesn't fall into, in case they rule me out on the spot? Secondly, and this is probably the harder part of the question to answer, what features in a code sample would be so impressive that they would instantly make you much more favourably inclined towards the programmer? All ideas or suggestions welcomed!

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• Optimize strategies for xml parsing?

  - by Future2020

  I am looking for general optimization tips and guidelines for xml parsing. One of the optimization strategies is of course selecting the "right" parser. A detailed comparison between the available parsers for ios can be found here http://www.raywenderlich.com/553/how-to-chose-the-best-xml-parser-for-your-iphone-project. However, I am currently trying to investigate general guidelines and tips on how to optimize by payloads to increase the performance as possible. This question is similar to (a question I have posted in the context of ios) but I have not got a sufficient answer. So this question is not in the context of any particular programming language.

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• Learning the command line [duplicate]

  - by Billy

  This question already has an answer here: What is the best way to learn how to use Ubuntu with terminal? 3 answers This isn't really a technical question but I am curious as to how long it takes to learn the linux command line. I would like to learn how to be able to do as much as possible easily from the command line. I just bought a book, linux command line and shell scripting bible. I know that this book will be of great help, but i just have no clue how long it will be before i can successfully naviagte the terminal with ease. If you could post and let me know about your experience with the terminal, and the learning process, that would be greatly appreciated. Thank you in advance.

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• Flash doesn't work

  - by user210195

  I am a Linux and Ubuntu fan for many years, but I can not normally use it because flash does not work in any Internet browser. I already installed Ubuntu, as well as Zorin-os, on many computers, but flash won't work on any of them. Is this only my problem. Does anybody else has this problem? I've read a lot of forums, I got many responses, but none of the answers did not help me. Flash persistently doesn't work. Is there any universal solution to resolve the problem efficiently? From the beginning of the installation flash does not work and none of the solutions do not help ... I must admit that I'm pretty desperate ... I am impatiently awaiting for an answer that will solve the issue.

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• Code sample after Job offer?

  - by mdominick

  I was verbally offered a job and the manager insisted that I start the day after the following day from the interview; so two days after the interview. I left the interview unsure of the offer the manager called me later that day and I agreed to take the position. At this point, I was told that I would get an offer letter the following day and would start the day after that. Later that evening I was asked for a code sample. I have yet to receive the offer letter the business day is about to close. I've been mostly contracting and usually answer technical questions or show samples at the beginning of the process and find this situation somewhat odd. Is this a common practice? Should I call the manager before business closes?

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• Ubuntu Server 12.04 + Wine + Filezilla FTP Server help

  - by Rebecca Joy

  I am not very experienced with non-windows operating systems, so please if you can answer, consider me to be a complete newbie with this. I have a Ubuntu Server 12.04, I installed Wine on it so I could install some familiar programs with GUI on my Ubuntu. I installed Filezilla Server using Wine, that went fine, the server is running, but I cannot find the GUI anywhere. I know it is running because in the winefile, if I execute the filezille server.exe, it says it is already running. However I have not been able to configure anything on the filezilla server because I can't see it anywhere. What am I missing?

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