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• Are Ruby formatted strings and interpolated strings identical in behaviour?

  - by Steve Weet

  Do the following two lines of code behave in exactly the same way despite slightly different implementations values.map{ |k,v| __send__('%s=' % k.to_s, v) } values.map{ |k,v| __send__("#{k.to_s}=", v) } The second line would be a more common ruby idiom so I was wondering why the other method was used when this was in the Rails Core which I would expect to use idiomatic ruby.

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• Type-casting. C and C++

  - by thecoshman

  I always though that float var_a = 9.99; int var_b = (int)var_a; was they way to typecast in c++... But here it said that its not the proper C++ way, its the old C way. So I ask, What is the proper C++ way, and more importantly, how do they differ? the C method should still work though shouldn't it.

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• what is means of system.string.compareordinal

  - by Steven Spielberg

  are you know about it. just tell me about it where we need it and want to use it. are anywhere this method can use

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• Where to place logic in a rich domain model

  - by Fino

  I have a model "news item" which contains text, image etc to display as latest news on several pages in a website. This "news item" can also be posted to Twitter or Facebook. Is it clean to implement a method post inside the news item model and inject the different post implementations as a strategy? Or is it better to have a separate application service for this? Thanks

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• how big is the performance impact of using system('hostname') in PHP?

  - by Jian Lin

  I saw some existing code in the PHP scripts doing a system('hostname'); how big can the performance impact on the server be if using this method?

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• Model binding broke after upgrade to Visual Studio 2010

  - by John

  I have an ASP.net MVC 1.0 VS2008 application that I just opened in Visual Studio 2010. When I did this Studio upgraded the app from VS2008 to the VS2010 project. It also upgraded the MVC references from 1.0 to 2.0. In my app I have a class for a form post, I then use the class for the model binding in the Action method so it will auto populate the values. This worked fine in mvc 1.0 but now it does not work in 2.0 after the upgrade. Does does anyone know why? Or where I should look to resolve this? Here is my class, public class Add_Postal_Form_Input { public string ACTION_RDO { get; set; } public string POSTALSELECT { get; set; } public string CNY_CD { get; set; } public string S_PST_LOW { get; set; } public string R_PST_LOW { get; set; } public string R_PST_HI { get; set; } public string G_PST_LOW { get; set; } public string G_GRP_CD { get; set; } public string CAT_CD { get; set; } public string SUB_CD { get; set; } public string ATTR_VAL { get; set; } public string NBG_HR { get; set; } public string NBG_MN { get; set; } public string REC_STT_DT { get; set; } public string REC_END_DT { get; set; } public string DEFAULT_DATE { get; set; } } Here is the method, [AcceptVerbs("POST")] public PartialViewResult AddData(Add_Postal_Form_Input FORM_IN) { Thanks

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• java timer for game

  - by user261002

  I have created a game in java and now I just need to add a timer that allow the user to play under 60s. I have searched on internet and found the timer for swing and util packages. could you please just give me a method to be able to use it in my game???

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• How do i propagate security to my independent web service enteprise application?

  - by Nitesh Panchal

  Hello, I created a simple web application which contains web pages and one enterprise application which contains web services and EJBs for my web application. I managed to configure security for my web application. But now how do i propagate this security to my enterprise application on my EJB method methods? so that i can use annotations like @RolesAllowed("") etc?

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• How to start an activity Dialog.

  - by PP

  I have one activity which i am using for displaying Dialogs and as a normal layout. So what i want to do is, sometimes i want to start activity as Theme Dialog and some times using setContentView. I can't use <activity android:theme="@android:style/Theme.Dialog"> in manifest file as it will always display activity as dialog. So can we do it programmatic, i have also tried setTheme() method but it did't work. Thanks, PP.

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• how do i do very fast inserts to SQL Server 2008

  - by CharlesO

  I have a project that involves recording data from a device directly into a sql table. I do very little processing in code before writing to sql server (2008 express by the way) typically i use the sqlhelper class's ExecuteNoneQuery method and pass in a stored proc name and list of parameters that the SP expects. This is very convenient, but i need a much faster way of doing this. Thanks.

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• C++ class pointer

  - by JHollanti

  I know that you can get a reference to a static method like this: typedef void (*pointer)(); pointer p = &MyClass::MyMethod; But is there a way to get a reference to the class itself?

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• Rails 3 and encrypted cookies with IE9

  - by user1832686

  I am using encrypted cookies to pass data to my rails app. Once these cookies get set, they are being passed just fine to Chrome, Firefox, Safari (iOS and OSX version), etc. However, the cookie isn't being passed back on Win7/IE9. I'm using Ruby 1.9 and Rails 3, and using the cookies.permanent.encrypted method of setting the cookie. E.g: cookies.permanent.encrypted[:some_data] = object.some_data Any ideas about what's going on?

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• Create photo collage with php script

  - by ToughPal

  Does anybody know of any php script / open source method of creating a photo collage like http://www.shapecollage.com/ Just a script to give a list of images and create something like this example http://www.shapecollage.com/collages/collage-popart.jpg no need of all that shape options.

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• C library to read from zip archives

  - by Ariel

  Is there a portable C library to access .zip archives? "gzip" or "zlib" (the closest I could find) only handle compressed data, I need to be able to list the files inside the archive, and access each one individually, and if they're compressed using the 'deflate' method, I can use zlib on it.

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• Using java provided parameters into xpath function while applying xslt transformation

  - by filmac

  I'm working at a java application that performs some xslt transformation. I would like to match nodes into the xslt document, using a parameter provided by java. Which is the right way to do something like: <xsl:template match="//m:properties/*[contains($pattern,name())]"> because when I launch my application, it claims it's not able to compile the stylesheet, since pattern is not defined but I'm setting it using the setParameter method and I was able to use another parameter defined in the same way but in a different context. Thanks in advance Fil

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• How do you construct a symbol in clojure?

  - by Nick Orton

  I want to construct a macro that given a symbol 'foo creates a method called foo*. How do concatinate 'foo and '* ?

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• Java: Check if file is already open

  - by hello_world_infinity

  I need to write a custom batch File renamer. I've got the bulk of it done except I can't figure out how to check if a file is already open. I'm just using the java.io.File package and there is a canWrite() method but that doesn't seem to test if the file is in use by another program. Any ideas on how I can make this work?

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• [C#] RegEx search for two pattern strings and cut what's between

  - by gsharp

  I'm trying to write a little SQL Helper. I have a query like this stored in a string: DECLARE @V1 INT --ignore DECLARE @V11 INT DECLARE @V12 INT --endignore DECLARE @V2 INT --ignore SELECT * FROM SampleTable INNER JOIN AnotherSampleTable ...... --endignore SELECT * From Employee ORDER BY LastName My helper method should cut everything what's between --ignore and --endignore The result string should look like: DECLARE @V1 INT DECLARE @V2 INT SELECT * From Employee ORDER BY LastName How can achieve my result with RegEx?

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• How to make an C vector or array from an NSArray?

  - by mystify

  Is that possible? I've seen no method that would generate a plain old C vector or array. I have just NSNumber objects in my array which I need as C vector or array.

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• howto create a new Date() in Javascript from a non-standard date format

  - by Michel

  hi, i have a date in this format : dd.mm.yyyy when i instantiate a javascript date with it, it gives me a NaN in c# i can specify a dateformat, to say: here you have my string, it's in this format, please make a Datetime of it. is this possible in javascript too, and if not, is there an easy way? i would prefer not to use a substring for day, substring for month etc. because my method must also be capable of german, italian, english etc dates.

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• Haskell and random numbers

  - by John D.

  Hi, I've been messing with Haskell few days and stumbled into a problem. I need a method that returns a random list of integers ( Rand [[Int]] ). So, I defined a type: type Rand a = StdGen -> (a, StdGen). I was able to produce Rand IO Integer and Rand [IO Integer] ( (returnR lst) :: StdGen -> ([IO Integer], StdGen) ) somehow. Any tips how to produce Rand [[Int]]?

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• Main point of Application Delegate class

  - by ahmet732

  What's the main point behind putting variables and method signatures inside ApplicationDelegate.h in Objective-C ? By doing this, all those methods and variables are seen by another view controller classes? Is that the point? And also: is there only one application delegate class inside each project?

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• Jaxws notifications

  - by akmer

  Hi, Could you please help in the following? Is there an acceptable design guideline to implement WS Notification Messaging in java? My scenario is the following: a web service client makes a web service call to a web service. After that, the web service should be able to send asynchronous notifications to the web client (as a result of the first web method call). What approach should be used? Thank you, Regards

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• How to pass a property to an event with a Button

  - by Tam

  I'm generating buttons dynamically that I want it to call a method like this: private function fetchTheDay(day:String):void { ... } But I wasn't sure how to make the button pass the string to it button.addEventListener(MouseEvent.CLICK,fetchTheDay); buttonVGroup.addElement(button); trying to do something like this didn't work: button.addEventListener(MouseEvent.CLICK,fetchTheDay(myString)); How should I do this?

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• How to make an tiled background like on the web?

  - by mystify

  On the iPhone, how could I achieve the same tiled background effect? For example, I have an pattern image which I want to repeat only horizontally. Would I have to go the route in -drawRect: by myself and loop over to draw the pattern, or is there a convenient method to do that?

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