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• How can I return something early from a block?

  - by ryeguy

  If I wanted to do something like this: collection.each do |i| return nil if i == 3 ..many lines of code here.. end How would I get that effect? I know I could just wrap everything inside the block in a big if statement, but I'd like to avoid the nesting if possible.

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• XMLReader : how to catch syntax errors in the xml file ?

  - by mishal153

  Hi, I have an XML file with syntax errors. eg. <Viewport thisisbad Left="0" Top="0" Width="1280" Height="720" > When i create an XML reader it does not throw any errors. I there a way to do syntax checking automatically, like XMLDocument does ? I have tried setting various XmlReaderSettings flags but found nothing useful.

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• How do I best catch up with the latest developments in java?

  - by Fredriku73

  I am applying for a job as java developer. I programmed some hobby apps in java until 2001, after that I have mostly worked in c++ and other languages. Meanwhile, it feels like java has grown a lot, and there are all kinds of acronyms (EJB, spring, etc) unknown to me. Where can I find a concise, clear explanation of the recent (5 years) development of java? What are key elements to understand?

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• Tool To Catch All The Inputs That Cause Crash?

  - by Barakat

  Hi all, I need a Windows tool records inputs and debugging informations that cause program's crashing. I don't mean a fuzzing tool ! Ammmmm ... let me show you a scenario may explain what I'm talking about. Sometimes during using a program, It's crashed without known reason ! and when I want to debug it, I will not find helpful informations to know how the crash happened. Because that the data that cause the crash no longer exist. So I need a tool records all the inputs and debugging informations to find helpful informations to reuse the inputs data to make the program crashes under a debaucher in order to understand how the crash happen.

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• try-catch error handling -- display line number where error occurred?

  - by CSharp Noob

  Can someone please tell me how to get the line number of the code where the error occurred and display it to the console? Thank you!

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• What does "Contract can't be in try block" mean?

  - by MatthewMartin

  I'm using the 3.5 library for microsoft code contracts public object RetrieveById(int Id) { Contract.Ensures(newObject != null, "object must not be null"); return newProject; //No error message if I move the Contract.Ensures to here //But it isn't asserting/throwing a contract exception here either } I get the compiler message: "Error 18 Contract section within try block in method 'Controller.RetrieveById(System.Int32)'

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• i want to block my http port using .net application............can anybody help me its urgent plzzzz

  - by prasad

  I want to block port 80 in such a way that whenever user clicks on IE the pop-up window should display to enter required information and once he enter's required information and it is valid then and then only he vl be able to access internet so anybody help me....................using C#.NET

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• Drupal: can I add a block to my View ?

  - by Patrick

  Hi, I was wondering if I can add a block to my a specific view. Apparently I can only add blocks to a "Page" template or to the generic "View template". I actually want to add it to only 1 specific View of my website. thanks

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• how to catch the event when the particular application process is being suspended using task manager?

  - by Mohan

  I am developing a simple application where in we have predefined quotas on usage for each user on the system.. and if the quota is up..the system should logoff of the user account.. this will happen if the application is allowed to run.. but if the user is closing the application on his own ..the app should automaticaly logoff the account.. i did exactly that in writing forced logoff code in form-closing event.. but if we are closing the app/process using the taskmanager.. the form closing event is not being called. and so the user is able to continue even if his quota of time is up.. can anybody helpme out with this..

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• Django: How can I get a block from a template?

  - by Mark

  Suppose my template has in it something like {% block subject %}my subject{% endblock %} and I load this template with tmpl = loader.get_template('mytemplate.html'), how can I extract "my subject"?

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• How to sort this rebol domain names block on date ?

  - by Rebol Tutorial

  I want to sort this block on date column: ["domain1.com" 18-Jan-2011 #"^/" "domain2.com" 20-Aug-2011 #"^/" "domain3.com" 23-Dec-2011 #"^/" "domain4.com" 22-Sep-2011 #"^/"] I can't see how to really do so with sort/skip function explained here, it's not crystal clear for me: http://www.rebol.com/docs/words/wsort.html

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• How to block form submission when the enter key or return key is pressed?

  - by WillKop

  I have a form that I use JQuery, I don't think I need to put code in this post, the question is pretty basic. But I would like to block the form from submitting when people press the Enter Key or the Return Key. At the same time, I have textareas, where the user will need to be able to press the Enter / Return keys.

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• is there any way to catch ROLLUP (mysql) figures as values in php?

  - by JPro

  Hi, I am using group by ID WITH ROLLUP in my mysql query. The thing is I want to store these totals in a variable in php. Is there any way to do that? Thanks.

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• How to block a IP address using web.xml ?

  - by BrunoLM

  How can I block a ip address with some configuration on web.xml? Do I need a filter? How can I implement one?

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• what does "throw;" outside a catch block do?

  - by Tobias Langner

  Hi, I just stumbled this code: void somefunction() { throw; } and I wonder: what does it mean?

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• How can I write a cron job that will block my internet from 7pm to 7am? (So I can get some sleep)

  - by user242065

  I am using OSX 10.6 and it has cron built in. How can I write a cron job that will block my internet from 7pm to 7am every day? Im sure this must be simple but I could only find one example online and it didn't work. It said to: set /etc/hosts.allow flie to be empty set hosts.deny file to ALL : ALL I did this and google still came up.

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• What exactly does an #if 0 ..... #endif block do?

  - by vette982

  In C/C++ What happens to code placed between an #if 0/#endif block? #if 0 //Code goes here #endif Does the code simply get skipped and therefore does not get executed?

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• Is there any way static block is executed more than once? if so then how?

  - by learner

  My Understanding Static block is executed during class loading, If a class is already loaded then there is no way to load the class other than class reloading Doubt/Question 1) Is there any time JVM reloads the class? My Understanding In Class Loading JVM loads source of the Java file, so it can not keep all thousands files source is a memory, it should discard the rarely used code and reload again when it is necessary and during reload JVM is not initializing static variables and locks again(may be using some tracking mechanism) Doubt/Question 2) If my above understanding is incorrect then please correct me

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• Is there a way to catch an attempt to access a non existant property or method?

  - by Tor Valamo

  For instance this code: function stuff() { this.onlyMethod = function () { return something; } } // some error is thrown stuff().nonExistant(); Is there a way to do something like PHP's __call as a fallback from inside the object? function stuff() { this.onlyMethod = function () { return something; } this.__call__ = function (name, params) { alert(name + " can't be called."); } } // would then raise the alert "nonExistant can't be called". stuff().nonExistant();

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• How to Block images (img tags) from an iFrame?

  - by ramayac

  Hello, Im searching for ideas to solve the following problem: I'm loading an URL (any for that matter) into an iFrame, and then block (server side) all image tags, o object tags before sending the page to the client. -- What I was thinking to do is: fetching the URL, and then manipulating the fetched content using a Java library (any recomendation on that matter?). And after that, send the modify content to que client. Would that be the best approach to solve this problem? suggestions are wellcome :)

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• How do you align a block item to the right edge of its parent (with CSS)?

  - by George Edison

  I am aware that you can center a block item by setting the left and right margin to auto. However, is it possible to align it to the right edge? And how would this be done? Edit: without using float: right (because it doesn't seem to work, at least not with <ul>'s)

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• I want a feature to temporarly block my website from accessing?

  - by Holicreature

  Hi from time to time , i want to shutdown my site for maintenance ... How could i do this? I've seen a option in phpbb to block the site by admin and then unblock them.. Is there any apis for this or tell me a method of how to do this? I'm using php for my website..

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• What's the catch to create _names _of _fields _like _these in java?

  - by Roman

  From time to time I see something like this: class Clazz { private int _goodName; private int _anotherGoodName; ... } I don't get it. It's hard and unusual to read such code. What are the pros?

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• How to make a catch-all handler in an .htaccess file?

  - by George Edison

  I want to create a rule at the end of an .htaccess file that catches everything that failed to match up until then. How can I do that? P.S. I've already tried everything :) Actually, I haven't, but it sure seems like it!

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• what happens to finally block in the following cases?

  - by GK

  if i have a following code try{ //some code }catch(Exception e){ //some code }finally{ } what happens to the finally block in the following cases if any checked exceptions happen. if System.exit() is called. if any unchecked exceptions happen. if any errors happen.

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