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• Simple explaination of Arraylists

  - by Jeremy

  I'm new to programming and I'm looking for a simple answer to build my foundation of understanding Arrays. I've used google and searched this site. After a bit of trial and error I get how to make and reference Arrays like thing[3] gets you the fourth thing in the thing array(since 0 is the first). which lets me do something like thing[3].getStupidNumber() to get the StupidNumber of the 4th thing in the thing array. Then I get to ArrayLists which seem to have much more utility but I cant make logical sense of them like Arrays. When i search I cant find this or word this correctly and thus far everything else I've learned clicked easily. so say I make an ArrayList thing with 5 things in it. how do i get to the .getStupidNumber() method inside the fourth thing, if possible? I think if I learn this I can learn the rest on my own. Thanks!

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• Interacting with Sql Server jobs programmatically

  - by Shlomo

  I would like to be able to interact with a Sql Server job programmatically through a web page. What is the best way to do this? Through SMO? The job will take a long time to run, so it needs to fire and forget, and I would also like to be able to stop it. If SMO, can anybody point me to an easy tutorial? Google gave me some fairly basic stuff but nothing substantial... SQL Server 2008, ASP.NET MVC web app.

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• Handle/Grip bar convention

  - by tomdemuyt

  Greetings, Because textarea elements do not resize with jquery.touch ( http://plugins.jquery.com/project/touch ), I've put an textarea in a table where the first row allows the user to drag the table around and resize it with the textarea growing/shrinking/moving along. It works well, except that users dont seem to 'get' that they can use the bar to resize/move. I was trying to find some 'grip bar' graphics but google isnt helping me. What is the best way to show users that an element can be moved/resized ? Pointer to graphics ( generators ) would be great. Or, does any one know how to make textarea's movable/resizable ? T.

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• Algorithm for calculating indefinite integrals

  - by mbac32768

  Suppose I have an integral that's bounded on one (or both) ends by (-)infinity. AFAICT, I can't analytically solve this problem, it takes brute force (e.g. using a Left Riemann Sum). I'm having trouble generalizing the algorithm so that it sets the proper subdivisions; I'll either do far too much work to calculate something trivial, or not do nearly enough and have huge aliasing errors. Answering in any language is cool, but maybe someone with better google-fu can end this quickly. :) Is what I'm looking for as impossible as trying to measure the British coastline?

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• How do I go about embedding a youtube chromeless player without adding controls?

  - by ndthl

  I am creating an online experiment. It involves participants watching a video then answering a questionnaire. I would like to embed a chromeless youtube video which plays automatically on page load, does not have controls for participants to play around with, and loads the next page once the video finishes. Now the autoplay/forward to next page functions are secondary and I'm not too concerned if I can't get them working. However I am very interested in how to embed a chromeless player. I have gone to the google playground but this code already has the controls attached. I am not very experienced at coding so I do not know what to remove from the code for none of the custom controls on the left to be displayed. Is anyone able to help me? Thanks, Wil

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• Authentication in Rails, where to start?

  - by Victor P

  Hello. Im learning Rails by building apps. I want to make my first authenticated app: users signup, login, do some changes in models they have access to and logout. I did the Google search but it is quite confusing: many plugins, many tutorials. Don't know where to start. Is there a state-of-the-art authentication method for Rails? What do you use in Production to authenticate your users? Any help in this will be helpful. Thanks

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• How to handle existing indexed Mixed Case url's?

  - by marcusstarnes

  I have an asp.net web forms application that has been live for a number of years and as such has quite a lot of indexed content on google. Ideally, I'd prefer that all Url's for the website are in lowercase but I understand that having 2 versions of the same content indexed in search engines (MixedCase.aspx and mixedcase.aspx) will be bad for seo. I was wondering: a) Should I just leave everything in its current Mixed Case form and never change it? OR b) I can change the code so everything is in lowercase from here on in, BUT, is there a way of doing this so as the search engines are aware of this change and don't penalise me?

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• How to Have a Bundled Configurable Product in Magento?

  - by Calua

  I've been searching about this topic on Magento forum and Google but can't find a definite answer for the question. Hope I find it here. Is it possible to have a bundled configurable products in Magento? Take for example I want to sell a set of t-shirt and short on a product page where the customer can choose the number of quantity, the color and the size for the t-shirt and short respectively. Maybe like this : T-Shirt [A configurable Product] Color : [combobox to select color] Size : [combobox to select Size] Qty : [input to enter the qty] Short [Another configurable Product] Color : [combobox to select color] Size : [combobox to select Size] Qty : [input to enter the qty] [Add to Cart Button] Any help and answer will be much appreciated. Thanks!

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• What is Ruby's double-colon (::) all about?

  - by Meltemi

  I'd probably be able to answer this for myself if "::" wasn't so hard to Google. Didn't see anything on SO so thought I'd try my luck. What is this double-colon :: all about? I see it everywhere in Rails: class User < ActiveRecord::Base or… ActionController::Routing::Routes.draw do |map| I found a definition from this guy: The :: is a unary operator that allows: constants, instance methods and class methods defined within a class or module, to be accessed from anywhere outside the class or module. but that just leads to more questions. What good is scope (private, protected) if you can just use :: to expose anything?

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• can Yahoo and Hotmail contacts api be used without leaving the site?

  - by Dr.Dredel

  I might be missing something but I'm trying to implement a contacts retrieval mechanism akin to the one that is offered by Google for Yahoo and Hotmail. Both APIs seem to require the user to actually go to their sites to log in. The documentation is really convoluted for both. I was hoping someone has done this and can point me to a simple way (if there is one) to allow the user to log in directly in my app and then for me to go and fetch their contacts for them (preferably in XML, but JSON would also do nicely). I currently have a Perl script that goes and gets the gmail stuff and works very nicely. I was (maybe wildly optimistically) hoping that Yahoo and Microsoft would have similarly useful mechanisms.

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• I need a small parser (jquery) that knows if an input is URL:PORT format

  - by Johua

  You have a user input string from a textbox for example var strInput = $("#txtBox").val(); strInput has some string now. I need to now if it is of this format: IP:PORT Basically a user can input something like this: http://192.168.300.22:20000 1) Frist part (protocol): http:// always needs to be replaced by: https:// 2) Second part (everything until the ":" sign): 192.168.200.22 (or www.google.com) 3) Third part (port): everyhing after ":" (example: 9999, 100000) I step): TAKE THE INPUT var strInput = $("#txtBox").val(); II) step): PARSE THE INPUT III) results): var strProtocol = "https//"; var strIP = parsedIP; var strPORT = parsedPORT; So i need 2 know how to get the values (parsedIP and parsedPORT).

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• silverlight vs ASP.NET MVC

  - by magellings

  I'm debating whether to use Silverlight 2.0 vs ASP.NET MVC for a web application. The web application will be a subscription free service marketing all age groups. It's important the source is highly testable, but also with the Web 2.0 movement a graphical web application is important as well for competitive reasons. I'm assuming silverlight is better than the ajax helpers/MVC graphically, but foundation-wise testing is better/easier with MVC. Possibly an MVP pattern with Silverlight could increase the testability of the source. Could anyone elaborate on the pros/cons of each technology and recommend one or the other based on the above? (addition 9/22/08) In regards to allowing search engines to index the site, using either technology it will utilize a backend database whereas a lot of the content will be dynamically generated. Based on some of the comments, when we talk of the searchable content would the home page of the application if written in silverlight be searchable? Would I be able to get the site to appear in a google search?

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• Redirect failing - "...will never complete"

  - by Carl

  I am trying to redirect a blog page to a newly updated page. The old entry is gone, but it is indexed in Google, and other people have links to it. I get this error: "The page isn't redirecting properly" "Firefox has detected that the server is redirecting the request for this address in a way that will never complete." The (deleted) link looks like this: "http://mysite.com/blog/?p=158" I want to redirect that to "http://mysite.com/blog/?p=194" I used CPANEL to do a permanent (301) redirect. (I have other redirects working.) I gues the ? is causing a problem. How do I fix it so the page redirects? (Please give instructions for CPANEL - the server has Frontpage extensions, and I don't bother with re-researching how to do it manually - the multiple files that need updated.)

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• Apache server-side files caching via .htaccess?

  - by purpler

  Hi, I'm starting new website and gonna include several JS libs and would like to know how .htaccess file template should look like with caching of media and JS files on? Whats better for compression, GZip or Deflate? Is it better/faster solution to serve those JS libs of the Google CDN perhaps then locally? I'm asking CDN question since some of scripts served off GoogleCDN are potentially going to update and eventually break the website layout so i thought it would be better for me to host them locally and cache via webserver if its going to work with same/near-same speed.

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• How can I access the copy buffer on the web?

  - by Ólafur Waage

  Wild question here. Is it possible to access the copy buffer on the web. What I mean is. Can I go into Photoshop. Select a piece of a photo. Copy that piece and paste it into some element. That something would be like a Java applet or Flash or Silverlight or anything. I am just wondering if it is possible and if someone could point me in a direction. Since a few google searches have only found where you can copy files and paste via a Java applet.

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• Wordpress IIS directory problem

  - by Haluk

  Hi, I'm trying to install wordpress on a Windows IIS server. I've extracted the wordpress file to a path like the following: www.domain.com/home I've setup the mysql database and configured the necessary wp-config.php. All is good so far. When I open the install php at: http://www.domain.com/home/wp-admin/install.php The page looks for its stylesheet at: http://www.domain.com/wp-admin/css/install.css That is wrong, it should look for the stylesheet at: http://www.domain.com/home/wp-admin/css/install.css I'm guessing the problem is with IIS but I have no clue how to tackle it and google did not help so far. I hope someone would know why this is happening. Thanks!

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• Execute VBA Macro via C# Interop?

  - by Jon Artus

  Hi all, just wondering if anyone could suggest why I might be getting an error? I'm currently trying to execute a macro in a workbook by calling the Application.Run method that the interop exposes. It's currently throwing the following COM Exception: {System.Runtime.InteropServices.COMException (0x800A03EC): Cannot run the macro Macro1'. The macro may not be available in this workbook or all macros may be disabled. I've put the containing workbook in a trusted location, set all of the security settings to their minimum values, and trusted programmatic access to my object model. I'm entirely out of ideas and Google's failed me so far! Has anyone done this, or can you suggest anything which I could try? Many thanks!

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• Can you safely rely upon Yahoo Pipes to offload ETL for your application?

  - by Daniel DiPaolo

  Yahoo Pipes are a very intriguing choice for sort of a poor-man's server-free ETL solution, but would it be a good idea to build an application around one or many Pipes? I've really only used them for toy things here and there, with the only thing I've used longer than a week or two being one amalgamated and filtered RSS feed that I've plugged into Google Reader (which has worked great, but if it goes out for a while I wouldn't notice). So, my question is, would building an application around Yahoo Pipes be reliable (available most of the time)? Ideally it'd be something I could rely on being up 99+% of the time. It looks like the Pipes Terms of Use permit building apps around it, but I am unfamiliar with anyone building anything significant using them.

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• Multimap Space Issue: Guava

  - by Arpssss

  In my Java code, I am using Guavas Multimap (com.google.common.collect.Multimap) by using this: Multimap< Integer, Integer Index = HashMultimap.create() Here, Multimap key is some portion of URL and value is another portion of URL (converted into integer). Now, I assign my JVM 2560 Mb (2.5 GB) heap space (by using Xmx and Xms). However, it can only store 9 millions of such (key,value) pairs of integers (approx 10 million). But, theoretically (according to memory occupied by int) it should store more. Can anybody help me, 1) Why is this happening (means Multimap is taking lots of space) ? I checked my code with out inserting pairs in Multimap, it takes only 1/2 MB space. 2) Is there any other way or home-baked solution to solve this space issue ? More clearly, how to solve this memory issue ? Thanks in advance and any idea is perfectly OK for me.

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• Hibernate, alter identifier/primary key

  - by Schildmeijer

  I receive the following exception when Im trying to alter my @ID in an @Entity. identifier of an instance of com.google.search.pagerank.ItemEntity was altered from 1 to 2. I know that im altering the primary key in my table. Im using JPA-annotations. I solved this by using this single HQL query: update Table set name=:newName where name=:oldName instead of using the more oo approach: beginTransaction(); T e = session.load(...); e.setName(newName); session.saveOrUdate(e); commit(); Any idea what the diff is?

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• How to connect to a legacy Informix database?

  - by ivo

  I have to connect my app to a customer's Informix 7.2 legacy database. From what I was able to find out, in theory there should be a database service running on port 50000. The problem is that I cannot find any database service in the Operative System. So far I'm only able to use dbaccess and perform queries from the command line. I would like to use a database driver (such as http://code.google.com/p/ibm-db/) so my app can connect and query the database using a cursor, but since I cannot find any database service, apparently I can't... Am I missing something here? Are there options I'm not considering? Is it possible to have an Informix database in which the only interface is dbaccess?

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• In .NET which loop runs faster for or foreach

  - by Binoj Antony

  In c#/VB.NET/.NET which loop runs faster for or foreach? Ever since I read that for loop works faster than foreach a long time ago I assumed it stood true for all collections, generic collection all arrays etc. I scoured google and found few articles but most of them are inconclusive (read comments on the articles) and open ended. What would be ideal is to have each scenarios listed and the best solution for the same e.g: (just example of how it should be) for iterating an array of 1000+ strings - for is better than foreach for iterating over IList (non generic) strings - foreach is better than for Few references found on the web for the same: Original grand old article by Emmanuel Schanzer CodeProject FOREACH Vs. FOR Blog - To foreach or not to foreach that is the question asp.net forum - NET 1.1 C# for vs foreach [Edit] Apart from the readability aspect of it I am really interested in facts and figures, there are applications where the last mile of performance optimization squeezed do matter.

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• In Ruby on Rails Routing I Would Like to Use Dash `-` Instead of Underscore `_`

  - by pablitostar

  I would like all the URLs for my web applications to use dash - instead of underscore _ for word separators. I'm surprised about a couple of things really: Google et al. continue to distinguish them. That RoR doesn't have a simple global configuration parameter to map - to _ in the routing. Or does it? I found a few questions here and elsewhere, but the best solution I've seen is to use :as or a named route. That's quite annoying. So I'm thinking of modifying the Rails routing to check for that global config and change - to _ before dispatching to a controller action. But before I do that, I'm hoping someone can save me the trouble! Thanks in advance for any help, or even confirmation that my approach makes sense. I'd submit it back. BTW, I'm currently on 2.3.8, but hope to migrate to 3 soon.

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• Document to String?

  - by Nate

  I've been fiddling with this for over twenty minutes and my Google-foo is failing me. Let's say I have an XML Document created in Java (org.w3c.dom.Document): DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder docBuilder = docFactory.newDocumentBuilder(); Document document = docBuilder.newDocument(); Element rootElement = document.createElement("RootElement"); Element childElement = document.createElement("ChildElement"); childElement.appendChild(document.createTextNode("Child Text")); rootElement.appendChild(childElement); document.appendChild(rootElement); String documentConvertedToString = "?" // <---- How? How do I convert the document object into a text string?

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• Flexibility starting to develop applications and DB

  - by kristaps

  Hi! First of all I want to say some info for admins. This post can help to all DBA and developers. Hope You don't close this. I'm writing about widespread problem I'm writing master work and I want that You will had little time to answer my questions in my form. These questions are about db structures. Visit here: http://spreadsheets.google.com/embeddedform?formkey=dEhmOWFGb2twWVFreWJwWXp2U3c5a1E6MQ After I summarized results, I insert it in new post and developers can choose which structure to use to reach needed requirements developing new applications. I think that my test will help a lot of people. Best regards, Kristaps

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