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• How do people maintain their test suite?

  - by Ida

  In particular, I'm curious about the following aspects: How do you know that your test cases are wrong (or out-of-date) and needed to be repaired (or discarded)? I mean, even if a test case became invalid, it might still pass and remain silent, which could let you falsely believe that your software works okay. So how do you realize such problems of your test suite? How do you know that your test suite is no longer sufficient and that new test cases should be added? I guess this has something to do with the requirement changes, but is there any systematic approach to check the adequacy of test suite?

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• How to store an iOS game save file in multiple devices? (Without remote servers)

  - by Omega

  I've been developing an iOS game for iPhone. My game saves the progress as a couple of .plist documents in the device. I have come to realize that when I install a game in my iPhone, this same game is installed in my iPad. And then it struck me: how would I manage save files? I mean, I'd like the player to be able to continue playing from where they left no matter what device are they using... without using remote servers. What have you done to address this issue?

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• Ask The Readers: How Do You Find Your Next Game?

  - by Jason Fitzpatrick

  Once upon a time the only place for new video game information was down at the arcade. These days there’s a news source and niche for everyone and every kind of game; where and how do you find your next video game conquest? Word of mouth? App recommendations? Critical reviews? This week we’re interested in lining ourselves up for a little summer fun: tell us all about your tips, tricks, and techniques for finding the real gems in the pile of games that comes out every year. Sound off in the comments and then check back in on Friday for the What You Said roundup. HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux

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• Tumblr is visiting my blog?

  - by Hermes

  I have created a blog on Tumblr a few days ago. Looking over the statistics, it seems that Tumblr itself is visiting my website, using different browsers. What is this supposed to mean? Are these real visitors or is it a Tumblr bot? One example: Browser: Chrome 32.0 OS: Win8 Resolution: 1024x768 Location: New York, United States IP Address: Tumblr (66.6.40.249) Referring URL: (No referring link) Other browsers used include: Chrome 20.0.1090.0 Firefox 21 Opera 12.14 Chrome 15.0.861.0 Chrome 32.0.1667.0 Internet Explorer 6 Internet Explorer 9 Opera 12 Opera 12.02 They all use the same screen resolution (1024x768) and have no referrer. The flash version is not set, but they do support javascript. Unfortunately, I don't have the full user agent string.

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• Is there a way to determine if a database has been altered, then to push new data to the Application

  - by TeamGB

  All our (my company) currently applications pull information from that database, is their a way to get the following types of databses to either push data or push an event to allow the application to pull data. Access SQL Oracle File systems (Files and folders) The issue today is that most of our application spend a large amount of time constantly looking at databases and file system checking to see if data has changed . It would be better for the database to inform the application when data has changed. Are there tools within Visual studio to allow this or are there tools within the database / filesystem to do this? All ready asked this on stack overflow but go no answer. I've been doing some more research but I cant seem to get any further. My manager has asked to investigate it as it would mean our applications are much quicker and efficient.

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• Is there such a thing these days as programming in the small?

  - by WeNeedAnswers

  With all the programming languages that are out there, what exactly does it mean to program in the small and is it still possible, without the possibility of re-purposing to the large. The original article which mentions in the small was dated to 1975 and referred to scripting languages (as glue languages). Maybe I am missing the point, but any language that you can built components of code out of, I would regard to being able to handle "in the large". Is there a confusion on what Objects are and do they really figure as being mandatory to being able to handle "the large". Many have argued that this is the true meaning of "In the large" and that the concepts of objects are best fit for the job.

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• Java graphic objects as in flashgames

  - by Ryu Kajiya

  How is it possible (with the standard Java2D engine) to use small sprites like graphic objects? For those who don't know what I mean, in all those Flash-games like on Facebook they put small sprites on the screen which react to mouse-over and clicks. I tried to do the same in Java but can't find a good method. Swing components always spread over the whole bitmap, but I only want to get a reaction from the object when the mouse is over a pixel that's not transparent. So basically checking every time if the object below the mouse contains a non-transparent pixel (which i believe could be pretty intense in a gameloop or repaint loop). I have no idea how to implement such a thing efficiently.

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• Enjoy a Dazzling Desktop with the Brazil Theme for Windows 7

  - by Asian Angel

  Do you love a combination of nature and night-time city photography for your desktop? Then you will definitely want to download a copy of the Brazil Theme for Windows 7. The theme comes with six images featuring the colorful and unique beauty of Brazil. Download the Brazil Theme for Windows 7 [Windows 7 Personalization Gallery] How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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• Is programming or computer science in general, all about algorithms?

  - by wakandan

  As a grad student, I find it more and more common for prestigious companies (like Google, Facebook, Microsoft,...) to put algorithm questions in their test and interviews. A few startups I applied to also asked about algorithms. I wonder if algorithms fluency is the most important thing for software developer in those companies? If the answer being yes, what are the best method or resources for one to learn & practice about algorithms effectively? I can't seem to get interested in solving seemingly too complicated problems found in most textbook or websites. Though easily understand basic algorithms (like quicksort, bubblesort,...), I find it immensely difficult to remember and reuse them later. Thanks. P/S: If you ask me what I like, it's building good softwares to solve users' problems innovatively. I suppose that does not necessarily mean the software has to be very complicated.

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• Are there any reliable solutions for annotations/reflection/code-metadata in C?

  - by dukeofgaming

  Not all languages support java-like annotations or C#-like attributes or code metadata in general, however that doesn't mean it is not possible to have in languages that don't have this. An example is PHP with Stubbles and the Doctrine annotation library. My question is, is there anything like this for C?, or are there any reliable ways of doing reflection with extended code metadata in C? Ideally, I'm looking for something that reads javadoc-like comments. Edit: The reason for me *needing* as opposed to just wanting, is that I need to generate C code and code-metadata from a database, as well as being able to edit that metadada and update the database. The volume of the work (~15,000 variables/structures/functions to generate from this database) justifies the solution.

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• C++ linkage error . What am I doing wrong ? [migrated]

  - by nashmaniac

  So, this is the first time I actually separated a single program into a header and two .cpp files . But I think I am getting an linkage error . Heres how the directory looks . (heres a link to my image I dont have enough rep to post image in the question) http://i.stack.imgur.com/sbT4V.png The main.cpp is my main source file where all the calling functions and other important stuff goes . In functions.cpp I have all my functions , in the coordin.h file I have the function prototypes and structures and Constants . Everything is ok no typo nothing I have checked everything . But I am getting an undefined reference to function error. I have included the coordin.h file too . Do you think the functions.cpp file needs to go somewhere else I mean is the compiler not looking inside that file ? Thanks !

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• Does a code inherit GNU GPL if it just link to GPL library?

  - by user14284

  Sorry for bad English. Suppose there is a library xxx under GNU GPL, that provide a function yyy. Suppose my code links to the library and use this function. Does my code inherit GPL license? IANAL, but my thoughts are conflicting: On one hand, my code is derivative from the library, so it should inherit GPL. On other hand, my code just use link to the xxx. Maybe there are other libraries, that has the same interface (particularly, they provide yyy function with same functionality, but different implementation). My code may link to any. My code really doesn't directly derived from xxx, it just use its interface. So, my code shouldn't inherit GPL. I'm confused. ADDED. The question is absolutely abstract. I don't mean any concrete GPL library.

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• How do I make a dialog box? [on hold]

  - by bill

  By dialog box I mean when player talks to someone, a box shows up with text on it. I haven't found much about this topic online, so I created a basic dialog box: //in dialog box i have only two methods public void createBox(int x, int y, int width, int height, String txt) { this.x = x; this.y = y; this.width = width; this.height = height; this.txt = txt; } //draw dialog box public void draw(Graphics2D g) { if (txt != null) { g.setColor(Color.red); g.drawRect(x,y,width,height); g.setColor(Color.black); g.fillRect(x, y, width, height); g.setColor(Color.white); g.drawString(txt, x + 10, y + 10); } } I wanted to now can I make this better?

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• Model Based Apps and Frameworks

  Having been involved (mostly as a user or observer) with several recent applications and frameworks, Ive come to the conclusion that building your app/framework on an internal model is generally the best way to go.  In this post Ill explain what I mean by on an internal model and later describe the benefits I have seen, realized, been told about by others and still others that Ive only imagined (but are still possible).  I plan on writing a few blog posts along these lines to explore what...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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• Friday Fun: Draw a Line

  - by Asian Angel

  In this week’s game your thinking skills will be put to the test as you work to draw lines and direct the movement of orbs on the game screen. Can you draw the proper configuration so that all the orbs move where they are supposed to or will you watch helplessly as your carefully crafted plans fail? How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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• How to manage the images for my Desktop Application

  - by NonExistent

  What's the better way to manage the image files of my app? i've been thinking about the way that i do right now (save the image as a BLOB IN db), and i ask myself if would be better to manage the image as text in my DB, i mean, convert the image to hex(length of 500), then save in the db as text, and when calling it convert it from hex to image, or something like that, but what do you consider as an Experienced Progammer that is the better way? Maybe the question is too broad, but i need to know that, and nobody answers me anywhere...

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• << and >> in C++

  - by JacKeown

  I don't quite understand what this means...I'm just learning C++ from my very very very basic Python experience...and so this may be a very stupid question. My question is...say you have your classic "Hello World" program and you have the line: cout<<"Hello World!"<<endl; what does the << mean...because I was just looking at using input in C and saw that you'd do something like: int i; cini; and I noticed that it has instead of << and I've read that those are bitwise shifts...and I don't exactly understand what those are...but I think it might be different here...Help...Thanks in advance

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• I Can not install skype on Ubuntu 12.10

  - by Arsalan

  Need help, I cant install skype on this Ubunto 12.10 version, need your help. this is the error. 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: skype : Depends: skype-bin but it is not installable E: Unable to correct problems, you have held broken packages. SO?

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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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• Where Are Multiple JUnit Test Methods Typically Placed in Code?

  - by Thunderforge

  I've just read the Vogella JUnit tutorial and found it very helpful in understanding how to use JUnit. However, I'm a bit confused about what the convention is for placing multiple test methods in code. The tutorial only places one test method in a class, then describes how you can use a test suite to group multiple test classes together. Does this mean that it's common practice for each test class to only have one test method and then test suites are used to chain them together? Or was that just unintended and instead common practice is to put multiple test methods in a class?

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• How to set up Ubuntu Server as a NAS?

  - by rifferte

  I am looking to set up Ubuntu Server as a headless NAS for my home. I would like to have file storage there, as well as a central hub for my MP3s and pictures. What are the best packages out there to handle this? Can someone post a link to a good tutorial or post some tips? One constraint I have is that it has to be Windows 7 friendly. By that I mean the shares and streaming should work for a Windows machine.

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• Designing a user-defined list to be stored in a relational database - Should I include user index?

  - by Zaemz

  By index, I mean, as the user creates the list, each item receives an integer index for its place in that particular list. Since there will be a table of ListItems, I'd prefer to avoid using the name "Index" for the field. Then I was thinking - should I even include the list index in the database? I figured I would because the list would be created in the same fashion every time, then. Or I could order the list for the user based on its actual primary key, since the list items are created in succession anyway... What should I do?

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• How much will be difference between building php sites with SVN and not using it

  - by user1315279

  I have been developing PHP sites for about 5 years but never used SVN. But i am going to start in new company and they use SVN. Tomorrow is my first day. I want to know that how site developement differes with SVN. WITHOUT SVN I make test account on Linux server via cpanel I make database tables Put all files in /home/user/public_html and i use PHP designer as IDE to edit files and i can see the results on test.mydomain.com I just want to know how much will be the difference with SVN. I mean what will be the steps

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• Vector normalization gives very imprecise results

  - by Kipras

  When I normalize vectors I receive very strange results. The lengths of the normalized vectors range from 1.0 to almost 1.5. The functions are all written by me, but I just can't find a mistake in my algorithm. When I normalize I just divide all components of the vector by the vector's length. public double length(){ return Math.sqrt(x*x + y*y); } public void normalize(){ if(length() > 0){ x /= length(); y /= length(); } } Is this supposed to happen? I mean I can see the length ranging from 0.9 to 1.1 at worst, but this is just overwhelming. Cheers

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• How long before Google will update search terms matching my website?

  - by Camran

  I have a website which title I changed about a month ago. The website is a classifieds website which is dynamic, using php. The title changed from "Free classifieds" to "buy and sell free classifieds". The strange part is that after about two weeks the title showed in google search results changed to the new title, BUT when I searched for "buy and sell free classifieds" my website didn't show up at all. I mean I have gone through over 30 pages of search results and my site isn't listed. However, searching for "free classifieds" still display my website at the same position it was before the title change. Any reason for this? How patient should I be? FYI the website has a sitemap submitted and updated, good meta tags and is W3 valid etc etc, so that is not the problem here. Thanks

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