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• How to write ½ in php

  - by skarama

  Hi everyone, Quick question, how can I make this valid : if($this->datos->bathrooms == "1½"){$select1 = JText::_( 'selected="selected"' );} The ½ doesn't seem to be recognized. I tried to write it as &#189; but then it looks for &#189; literally, and not the ½ sign. Any ideas?

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• What data actually gets cached in InnoDB/MySQL?

  - by ming yeow

  Hi folks, i am trying to optimize performance for my database. My question is - what get cached in the db memory? For example: (table with 2 columns: key (indexed), data (not indexed) updated (not indexed) Select * where updated=20100202 (the db will do a scan - will the scanned rows be kept in memory?) Select * where key = 20 (the db will refer to the index - will the identified rows be kept in memory?)

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• Is there a cross-platform header in the standard library that provides access to the current time?

  - by George Edison

  Probably a stupid question, but I couldn't find anything searching... Is there a standard header that allows me to fetch the current time? Otherwise is there some cross-platform alternative?

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• Do you say No to C# Regions?

  - by LittleBoy

  The idea behind the question is - Just say No! to C# Regions It is said that "the reason to use #region tags because all the things they are hiding is just really bad code." How do you use regions effectively?

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• Django menu item sorting

  - by doktorno

  Hi i've got MenuItem model : MenuItem(models.Model) name=models.CharField(max_length=50) url = models.URLField() position = models.IntegerField() Class Meta: ordering =['position'] then i'm retriving it by MenuItem.objects.all() My question is how can i make any user friendly interface in admin panel to allow sorting MenuItems - for example list with + and - buttons to move MenuItem up and down ....

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• Writing Url's in latex

  - by danzig

  This is a pretty basic question but... How do you write a url in Latex? The subscripts and everything else make the font look very strange when it compiles.

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• Is the Google Annotations Gallery useful in production code?

  - by cafe

  I could actually see a use for the Google Annotations Gallery in real code: Stumble across code that somehow works beyond all reason? Life's short. Mark it with @Magic and move on: @Magic public static int negate(int n) { return new Byte((byte) 0xFF).hashCode() / (int) (short) '\uFFFF' * ~0 * Character.digit ('0', 0) * n * (Integer.MAX_VALUE * 2 + 1) / (Byte.MIN_VALUE >> 7) * (~1 | 1); } This is a serious question. Could this be used in an actual code review?

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• The right way to write "ID" in columns in SQL

  - by radbyx

  My first question in here. I like the site so much :) I've a SQL table called Product. In that table I want to make a column for the ID of the product, and I really like to now the right way of write ID because I make alot of ID columns in the long run. So is it: "ID" or "Id" ? And also a foreign key in another table, is that called ProductID or ProductId? Thx guys.

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• Configure email notification in Hudson.

  - by MikeU

  I am trying to configure Hudson to sent an email if a build fails to the person who committed the broken build to the SVN. Question Is it possible to do this and if so how do I configure Hudson to do it?

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• Network Differences

  - by Chris

  I am busy working on a java app to run on blackberries but on some devices i am testing on, the code does not seem to be working and im having a hard time pinpointing where the problem lies. My question is: Could the problem with some phones working and not working have t odo with the type of network they are running on such GSM vs CDMA and would the code that stops working on some devices be in one of the following areas: 1) Listeners - such as MessageListener and Phone Listener 2) UI Objects - simple test labels and buttons 3) Connection to a web service using ksoap2

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• insert exclusive locking

  - by Markus

  Hi, I have thought about the following SQL statements: INSERT INTO A(a1, a2) SELECT b1, udf_SomeFunc(b1) FROM B Where udf_SomeFunc makes a select on table A. As I understand, first, a shared lock is set on A (I am talking just about table A now), then, after this lock is released, an exclusive lock is obtained to insert the data. The question is: is it possible, that another transaction will get the exclusive lock on table A, just before the current transaction takes its exclusive lok on A?

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• Flash button not reacting at all...

  - by Jerre

  Hi, I'm making a game in Flash for school. I have a few dialog boxes that work just fine! Now I need a bigger one with more buttons and with the same code, I can't even get a trace reaction... My code: On the button itself: okButton.addEventListener(MouseEvent.CLICK,MovieClip(parent).clickMyButton); In the AS file: public function clickMyButton(event:MouseEvent) { trace("Halloooo"); } Another question: How can I close (remove from stage) a child dialog box (movie clip)

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• Fastest and most efficent way of seaching a key-value pair in Java?

  - by Mohit Deshpande

  DISCLAIMER: THIS QUESTION WAS NOT MENT TO BE ARGUMENTATIVE!!!!!!! What is fastest and less memory draining way of searching a key-value pair? I will be storing items in a key-value like relation and I need to access them quickly. Should I use a SQLite database? A Map? A Hashtable? A HashMap? Please give some advantages/disadvantages of using whatever method of searching.

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• Parallel computation of the median of a large array

  - by recipriversexclusion

  I got asked this question once and still haven't been able to figure it out: You have an array of N integers, where N is large, say, a billion. You want to calculate the median value of this array. Assume you have m+1 machines (m workers, one master) to distribute the job to. How would you go about doing this? Since the median is a nonlinear operator, you can't just find the median in each machine and then take the median of those values.

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• What will happen when I call a member function on a NULL object pointer?

  - by Rajendra Kumar Uppal

  I was given the following as an interview question: class A { public: void fun() { std::cout << "fun" << std::endl; } }; A* a = NULL; a->fun(); What will happen when this code is executed, and why?

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• In an iPhone app, is it beneficial to tile a background image that has a pattern in it?

  - by Dr Dork

  Here's an example of the type of background image I'm talking about, the iPhone Notes app... Clearly, there's a pattern in it. My question is, if this were an iPad app and the background image was twice the size, would there be any significant benefits to taking advantage of this pattern by tiling the image? Or would it really make no difference in terms of performance and just be easier to load the entire image into a UIImageView? Thanks in advance for all your wisdom!

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• Debug.Assert Appears in Release Mode

  - by Ngu Soon Hui

  We all know that Debug.Assert will not be compiled into the dlls when compiled in release mode. But for some reason Debug.Assert did appear in the release version of a component I wrote. I suspect that I might have mess up my csproject setting. Any idea why Debug.Assert appears in release mode? P/S: I have double checked to make sure that I was really compiling in release mode before asking this question.

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• The Stackoverflow alert box, How is it done?

  - by Scott

  Question says it all. Can someone point me to an example of how they do the alerts at the top when a new message arrives or someone posts to my answers or I just have a notification.. Thanks. P.s. I would love a JQUERY solution, but can work with just a js solution.

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• Working with dictioanries\lists in R

  - by Ivri

  Hi, everybody! I have trivial question: I couldn't find dictionary data structure in R, so I used list instead (like "word"-number) So, right now I have problem how to get the list of keys. Anybody knows?

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• SQL Exception: A truncation error was encountered trying to shrink VARCHAR '...' to length x

  - by Tom Brito

  I know really little about sql, can anyone give me a deeper explanation (or references) of what do this exception means? Possible related question: http://stackoverflow.com/questions/1016901/truncate-a-varchar-to-specific-length-in-derby-automatically

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• C#: How to replace "-" with " -" only when it's not preceded by "e"?

  - by MaDDoX

  I imagine I should use Regex for that but I still scratch my head a lot about it (and the only similar question I found wasn't exactly my case) so I decided to ask for help. This is the input and expected output: Input: "c-0.68219,-0.0478 -1.01455-0.0441 0.2321e-4,0.43212" Output:"c -0.68219,-0.0478 -1.01455 -0.0441 0.2321e-4,0.43212" Basically I need either commas or spaces as value separators, but I can't break the exponential index (e-4). Maybe do two successive replacements?

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• Building an IRC bot in Java

  - by Waltzy

  After some googling an obvious answer or starting point for a Java IRC bot has not presented itself, my question; is there an existing framework to help me do build an IRC bot? Failing that, is this possible using Sockets in Java to do this and has anyone seen an example around the web? cheers guys.

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• Linux tool to send raw data to a TCP server

  - by paul simmons

  Hi, I am aware that this is not a direct 'development' question but I need that info to test a development project, so I think someone could've hit similar problem. I will test a software that runs a TCP server and according to sent commands replies some answers. I will test the software and do not want to write code if it doesn't work well. So I want to send those commands and test drive the server software. How can I achieve this with a Linux box?

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• Divs not aligning side by side

  - by Abijah

  I've been learning about divs over the past few months, and am now able to align divs side by side. However, today I was working on my website, and my divs suddenly stopped lining up. The divs in question are: #dorsey_left, #dorsey_middle and #dorsey_right. When I remove #dorsey_left from the HTML document, #dorsey_middle and #dorsey_right align properly. I'm guessing that the problem is related to #dorsey_left, but I can't find anything in the code. This is the JsFiddle.

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• How to bundle bash completion with a program and have it work in the current shell?

  - by extempore

  I sweated over the question above. The answer I'm going to supply took me a while to piece together, but it still seems hopelessly primitive and hacky compared to what one could do were completion to be redesigned to be less staticky. I'm almost afraid to ask if there's some good reason that completion logic seems to be completely divorced from the program it's completing for.

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