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• What to prefer in the following case?

  - by GK

  say suppose I have class as : public class Age { private int age; public int getAge() { return this.age; } } In my Main class I am calling the getAge() method many times. So I wanted to know is it advisable to call so many times or call once and assign it to some variable and use that variable. Which is best and why?

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• Java: Prepare a statement without a connection

  - by r3zn1k

  I'm trying to generate some sql files in my java application. The application will not execute any sql statements, just generate a file with sql statements and save it. I'd like to use the java.sql.PreparedStatement to create my statements so that i don't have to validate every string etc. with my own methods. Is there a way to use the PreparedStatement without the calling java.sql.Connection.prepareStatement(String) function, because I don't have a java.sql.Connection?

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• best scala idiom for find & return

  - by IttayD

  This is something I encounter frequently, but I don't know the elegant way of doing. I have a collection of Foo objects. Foo has a method bar() that may return null or a Bar object. I want to scan the collection, calling each object's bar() method and stop on the first one returning an actual reference and return that reference from the scan. Obviously: foos.find(_.bar != null).bar does the trick, but calls #bar twice.

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• jquery ajax: headers seem to not be working

  - by Will

  hello, i am trying to get the headers of an ajax request i made through jquery $.get(url, function(response, textStatus, headers ) { console.log("Response: %o", response); console.log("TextStatus: %o", textStatus); console.log("Request: %o", headers); } ); this does not seem to be working however: the response and textstatus are printing, but the "headers" object seems to be undefined i simply want to check if it is what i expect (content type='excel', etc) or if the response type is html, i can assume the page i was calling is an error

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• include link list depending on category

  - by user117701

  I want to display the linklist widget only on a certain category. The current way the sidebar is fetched is: if (!function_exists('dynamic_sidebar') || !dynamic_sidebar(1)) Which doesnt give me a say in the calling of the links widget. If i put an if clause there, then the rest of the widgets dont get loaded. So i either need to customize the links widget it self or find a way to call the links widget directly? And how do i check which category i'm on?

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• upload 2 images at once in codeigniter

  - by sonill

  can anyone plz provide me a simple working code snippet of codeigniter for uploading 2 images at once (through 2 different input field ofcourse). I need 2 images to be uploaded at once, or one after another. and both of the images need to be in different location. I tried to make it myself by calling upload function twice but it returned last images with these extentions: *.jpg.jpg. can anyone help

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• What's the best replacement for timeGetTime to avoid wrap-around?

  - by phjr

  timeGetTime seems to be quite good to query for system time. However, its return value is 32-bit only, so it wraps around every 49 days approx. It's not too hard to detect the rollover in calling code, but it adds some complexity, and (worse) requires keeping a state. Is there some replacement for timeGetTime that would not have this wrap-around problem (probably by returning a 64-bit value), and have roughly the same precision and cost?

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• C# Dispose() -clarification

  - by nettguy

  When i call object.Dispose(); Will CLR immediately destroy the object from memory or mark the object for removal in it's next cycle?. We are calling GC.SuppressFinalize() immediately after Dispose(),Does it mean ,"Don't collect the object again for dispose,because it is already submitted to displose". Actually which generation is responsible for destruction ,i guess generation 2.

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• Does Core Data take appropriate action automatically when there's a Low Memory Warning?

  - by dontWatchMyProfile

  Does it turn some managed objects into faults when there's a Low Memory Warning? Or must we do that manually by calling the -refreshObjects:mergeChanges: method which puts the affected managed objects on diet quickly? And...would that actually hurt? What if these objects are currently used by an NSFetchedResultsController to show up on a table view?

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• How to avoid circular reference when excel cell update

  - by Nimo

  Hi, I'm writing a set of functions in c++ which can be called by excel. However, these functions are asynchronous, therefore no immediate return values available. Once a result is available I used a callback function through VBA which update the result to the relevant cell which called the functions. But, here I'm having circular function calling problem, because when I update the cell. excel automatically call the original function once again. Please help me to get around this problem Thank You

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• What is the significance of Thread.Join method in c sharp .net ?

  - by Techee

  What is the significance of Thread.Join method in c sharp .net ? MSDN says that it blocks the calling thread until a thread terminates. Can anybody explain this with a simple example ?

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• How do I execute some code in a superclass after all the subclasses have been constructed?

  - by Thiado de Arruda

  Is there a way to do this in C#? I know that the subclass will call the superclass constructor before calling its own constructor, but what If I have some code on the superclass that should only be executed after all the subclasses constructors have been called?

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• SUM minutes SQL server

  - by sandu

  HI guys, My litle problem goes like this : I have this columns : PHONE_NR , TIME ( time field ), Meaning the calling telephone number and call duration. I need to group phone nr and sum the minutes. Filds looks like this : nr time 726028xxx 00:07:07 735560css 00:07:37 726028xxx 00:07:55

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• Forcing a PictureBox to retain its image if the image was drawn on using code in vb.net

  - by Cyclone

  My pictureboxes sometimes clear of all drawings when they are done creating the image, or sometimes halfway through. Calling GC.Collect() before the drawing starts lets it draw MORE before it clears, but how can I stop it from clearing entirely? This is in vb.net Thanks!

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• Using C++ from Objective C : how to allocate/deallocate?

  - by Dmitri Nesteruk

  Currently, my Objective C classes use C++ objects by doing a new when the owner is created, and calling delete when it is destroyed. But is there another way? I'd like to be able to declare, say, an auto_ptr whose scope lasts the duration of the Objective C class' lifetime.

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• How to make up a search box?

  - by dfjhdfjhdf

  How to make up a form that is going to be a search box and work only via Ajax? That is: 1) What to put as the form's action value? (action="what") 2) How to submit it so that nothing else happenes except for calling the JavaScript function?

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• What does the GDI+ background thread do?

  - by uj

  Upon initialization, GDI+ (non .NET) creates a background thread, which can optionally be suppressed subject to calling some hook functions. MSDN, however, doesn't say what this thread actually does. Google doesn't seem to know either. What is it for?

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• An unsecured or incorrectly secured fault was received from the other party

  - by Armn

  Hi. I have a Windows program that calling a WCF service. This service after a few times be strongly slow and eventually this error will encounter. Restart after once again to the service starts again. sincerely.

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• Show dialog after Application.Exit()

  - by Bryce Wagner

  Under certain circumstances, I wish to display an error message to the user if the application didn't shut down, but MessageBox.Show() doesn't actually do anything after calling Application.Exit(). Is there a way to convince it to show a dialog after Application.Exit()?

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• PHP Pass by reference

  - by Salil

  I am calling this function which is modifying an array by reference: function addWord(&$words, $wordIndex, $word) { $words[$wordIndex] = $word; } At the function call, addWord(&$words, $wordsIndex, $word); ($words is used only during the function call) doesn't work. How do I make this or a similar functionality work? I want the addWord to be a separate function.

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• Iterating over key/value pairs in a dict sorted by keys

  - by Helper Method

  I have the following code, which just print the key/value pairs in a dict (the pairs are sorted by keys): for word, count in sorted(count_words(filename).items()): print word, count However, calling iteritems() instead of items() produces the same output for word, count in sorted(count_words(filename).iteritems()): print word, count Now, which one should I choose in this situation? I consulted the Python tutorial but it doesn't really answer my question.

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• Using closes sql connection brought over by a function

  - by iefpw

  Would this using close this _connection? using(SqlConnection _connection = Class1.GetSqlConnection()) { //code inside the connection } //connection should be closed/ended? I'm just wondering because GetSqlConnection() is a static function of Class1 and the whole connection might not be closed because it is calling outside class' static function instead of straight? using(SqlConnection _connection = new SqlConnection(_connectionString) { //code inside the connection }

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• Why thread started by ScheduledExecutorService.schedule() never quits?

  - by moonese

  If I create a scheduled task by calling ScheduledExecutorService.schedule(), it never quits after execution, is it a JDK bug, or I just miss something? note: doSomething() is empty method below. public static void doSomething() { } public static void main(String[] args) { ScheduledFuture scheduleFuture = Executors.newSingleThreadScheduledExecutor().schedule(new Callable() { public Void call() { try { doSomething(); } catch (Exception e) { e.printStackTrace(); } return null; } }, 1, TimeUnit.SECONDS); }

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• Enabling edit mode for only one row in table view

  - by Shuaib

  Hi, I can set the edit mode for a while uitableview by calling [tableView setEditing:YES]; But that sets the edit mode for all the rows in a table. Is there a way to detect what row was swiped an enable the edit mode only for that row? Thanks

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• How does PHP know what the last database connection is when mysql_select_db() or mysql_query() is us

  - by agscala

  Consider the following code: <?php $conn = mysql_connect('localhost', 'username', 'password'); mysql_select_db('database', $conn); ?> This works as expected, but how does PHP know what database connection to use when calling mysql_select_db() in the following example? <?php mysql_connect('localhost', 'username', 'password'); mysql_select_db('database'); ?>

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