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• Java - converting String in array to double

  - by cc0

  I'm stuck with this pretty silly thing; I got a textfile like this; Hello::140.0::Bye I split it into a string array using; LS = line.split("::"); Then I try to convert the array values containing the number to a double, like this; Double number = Double.parseDouble(LS[1]); But I get the following error message; Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1 Does anyone have any idea why this doesn't work?

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• Including C header file with lots of global variables

  - by Costi

  I have an include file with 100+ global variables. It's being used in a library, but some programs that I'm linking the lib to also need to access the globals. The way it was built: // In one library .c file #define Extern // In the programs that use the globals #define Extern extern // In the .h file Extern int a,b,c; I had a hard time understanding why the original programmer did that so I removed that define Extern stuff. Now I think I understand the thing about TU with the help of stackoverflow: 1, 2, 3. Now I understand that I should define the global variables in one .c file in the library and use extern in the .h file. The problem is that I don't want to duplicate code. Should I go back to that #define Extern voodoo?

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• Re-ordering collection C#

  - by Adam

  Hi - I have a problem which I cant seem to find answer to through searches (either that or I am searching for the completely wrong thing!). I have a list of items called "Top 10" in a sortedlist item that is populated from my DB (SortedList where int is position and string is item). I want to be able to move items up & down the list order at the click of a button and then save the new order back to the DB. I am OK with the DB part it is just the re-ordering I am really struggling with - is a sortedlist the correct collection for this? Many thanks for any advice offered.

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• Is re-using a Command and Connection object in ado.net a legitimate way of reducing new object creat

  - by Neil Trodden

  The current way our application is written, involves creating a new connection and command object in every method that access our sqlite db. Considering we need it to run on a WM5 device, that is leading to hideous performance. Our plan is to use just one connection object per-thread but it's also occurred to us to use one global command object per-thread too. The benefit of this is it reduces the overhead on the garbage collector created by instantiating objects all over the place. I can't find any advice against doing this but wondered if anyone can answer definitively if this is a good or bad thing to do, and why?

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• paypal ipn simple question

  - by TIT

  I want to ask just a thing. I am using paypal for the first time. not by buttons. the data i sends through html page , is it returned by the ipn? i am using a paypal class and this is my custom data: $this->paypal_class->add_field('cemail', $this->session->userdata('check_email')); $this->paypal_class->add_field('fname', $this->session->userdata('check_name')); just wanna ask if it returned by the ipn or not.

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• Mozilla Firefox border rendering

  - by zA

  Hi, I've come across a strange thing in Firefox, which has become a problem to me. It seems that Firefox renders borders thinner than other browsers. For example I have just a simple empty div element, and nothing else on the webpage, with a border set to width:3px. In all other browsers, such as IE, Opera, Chrome and Safari, the width looks the same and is in fact 3px wide. But in Firefox I noticed that the border width seemed thinner. So I checked the border width with Firebug, under the Computed tab - Box model. And yes as I suspected, the rendered border in Firefox is thinner. The border width that Firefox rendered is actually 2.2px and not the expected 3px. This small difference with Firefox completely messes up my design. Has anyone else noticed this? Does anyone have a solution for this? Thanks in advance!

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• Easiest way to convert json data into objects with methods attached?

  - by John Mee

  What's the quickest and easiest way to convert my json, containing the data of the objects, into actual objects with methods attached? By way of example, I get data for a fruitbowl with an array of fruit objects which in turn contain an array of seeds thus: {"fruitbowl": [{ "name": "apple", "color": "red", "seeds": [] },{ "name": "orange", "color": "orange", "seeds": [ {"size":"small","density":"hard"}, {"size":"small","density":"soft"} ]} } That's all nice and good but down on the client we do stuff with this fruit, like eat it and plant trees... var fruitbowl = [] function Fruit(name, color, seeds){ this.name = name this.color = color this.seeds = seeds this.eat = function(){ // munch munch } } function Seed(size, density){ this.size = size this.density = density this.plant = function(){ // grow grow } } My ajax's success routine currently is currently looping over the thing and constructing each object in turn and it doesn't handle the seeds yet, because before I go looping over seed constructors I'm thinking Is there not a better way? success: function(data){ fruitbowl.length = 0 $.each(data.fruitbowl, function(i, f){ fruitbowl.push(new Fruit(f.name, f.color, f.seeds)) }) I haven't explored looping over the objects as they are and attaching all the methods. Would that work?

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• What are the most likely reasons an application would fail on only one of my servers?

  - by Rising Star

  I have several servers to test new code on. I primarily push out asp.NET web applications. Last week, I had an issue where I installed a newly developed web application on three servers. The three servers all run in separate environments. The application worked fine on two of them, but consistently crashed on the third server with each web request. The problem was eventually traced to an in-house developed .dll file being out of date on the third server. I'm certain that this kind of thing happens all the time. However, there are numerous things that could go wrong to cause this kind of behavior. I spent quite a bit of time tracing this problem. I would like to make a list of things to be suspicious of next time this happens? What are the most likely reasons that a web application would crash on one of my servers while identical code runs fine on another server.

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• What's the most "death-resistant" component on Android?

  - by Arhimed

  I'm looking for the most suitable class to be a dispatcher for AsyncTasks invoked from my Activities. I think it could be one of these: subclass of Application; subclass of Service; my own static stuff. As for me - it's simlier to implement the 3rd choice. But the question is will it be more "death-resistant" than Service or Application? Also it's very interesting what will live longer - Application or Service? My guess is the Application lives as long as the app (task in terms of Android) process lives. So basically I need to range those options by their "death-resistant" quality, because I'd like to rely on the most "static" thing.

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• Programmatically changing code files

  - by Carra

  I'm changing our webservices to an async model. And for that I have to change over a hundred methods. Doing it manually is one (unappealing) option. Is there no way to programmatically parse & change multiple functions/code files? Example: [Webmethod] public void MyWebservice (string parameter1, string parameter2, string parameter3) { //Logic here } And change this to: public void InternalMyWebservice (string parameter1, string parameter2, string parameter3, AsyncCallback callback) { //Logic here } [Webmethod] public void BeginMyWebservice (string parameter1, string parameter2, string parameter3, AsyncCallback callback, object asyncState) { //Queue InternalMyWebservice in a threadpool } public void EndMyWebservice(IAsyncResult asyncResult) { //Set return values } It's basically the same thing I have to do for each webservice. Change the name to "InternalX", add a parameter and create the begin & end method.

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• Online webcam chat. Free server and easy-to-implement client?

  - by Oskar Kjellin

  I have a client requesting that his users can use their webcams to talk to each other. From what I've understood the main thing to use for this is Flash. However as I have not written flash I would like to have something really easy to implement. Of course preferrably free (or trial). The idea of this is that everything but the chat alone is in .net. So the users will not use flash until they are actaully going to talk to each other. So there is no use for rooms here. I've been looking into silverlight some as well. But it seems like silverlight does not offer streaming between users..? I know this question has been asked many times here. But I could not find a suitable answer which is why I post a new question.

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• Zipping increment file names using Zip Utils

  - by Peter

  Hello I've been using "Zip Utils" from http://www.codeproject.com/Articles/7530/Zip-Utils-clean-elegant-simple-C-Win32 to zip files and folders. the easy thing is if the file name is known i just need to do something like this HZIP hz; DWORD writ; hz = CreateZip(_T("filename\\image1.zip"),0); The problem is I get errors when trying to zip files by incrementing file names within a loop int i= 0; for(i=0; i<record; i++) { ZipAdd(hz,_T("doc"+i+1+".kml"), _T("filename\\doc"+i+1+".kml")); }

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• display classes of a namespace in visual studio (C#)

  - by ericyoung7001

  I am a Java programmer, and just starting to use Visual Studio to do C# programming. In Java IDE such as Eclipse, if I do not know the classname in a package, I can just type a dot (.) after a package name, then I will get a list of all the classes in that package in the IDE. How I can configure visual studio to do the similar thing, say, if I click a namespace name in a file (for example, using System), or add a dot after the namespace, all the classes in that namespace will be displayed somewhere in the IDE?

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• Problem with notification bar in fullscreen app

  - by Mathias Lin

  I run an app in fullscreen mode where fullscreen is defined as a theme in xml for the entire app. <style name="AskTingTingTheme" parent="android:Theme"> <item name="android:windowNoTitle">true</item> <item name="android:windowFullscreen">true</item> <item name="android:windowBackground">@null</item> </style> Generally it works ok, but there are some issues in some cases: 1) when I open the search dialog via search button - Screenshot: http://tinyurl.com/3xzadft 2) when I open spinner widgets that are very long and fill the screen (so that the list is usually scrollable) - Screenshot: http://tinyurl.com/39q5ya2 The problem is that when I open the search dialog or spinner widget, the system notification bar occurs for a few millisecs and then scrolls off the screen again. Please see the screenshots linked above. I'm currently on 2.2 with NexusOne, but same thing happened on 2.1update1 (esp. case 2) as well before.

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• Move Global.asax to iHttpModule when using ASP.NET MVC

  - by rockinthesixstring

  I have successfully created an iHttpModule to replace my Global.asax file in many Web Forms applications. But in looking at the Global.asax file in my MVC application, the methods are totally different. I'm wondering if it is still possible to create this same thing in an MVC app. I know it's not necessary and the Global.asax works just fine. I suppose I just want to have nothing but the web.config in the root directory of my application. Also, I am putting all of my classes in a separate class library project instead of a folder in my MVC application. Not sure if this makes a difference or not.

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• formation an external hard disk

  - by Alex

  I am trying to format an external hard disk to FAT32 (i need it to wrok with some hardware that expects it to be in fat32). When i am trying to format it vie windows the only option I'm getting is to format it to NTFS. Another strange thing is that when i am trying to format one of my own partitions (on the hard disk that is running the OS) i can do it only in NTFS while another partition my OS can format in both NTFS and FAT32. What can cause such a bihavior and how can I format the external hard dist to FAT32?

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• [Rails] HTTP Get Request

  - by Karl

  I've been trying to get Rails to play with the new Facebook Graph API. After I get the authorization "code", I need to send another request which returns the access token in JSON form. It seems to work fine, however I want to fetch the access token JSON without redirecting the user. I'm attempting to use Net::HTTP.get, but I'm not sure how to use it to get a request body, or even if it's the right thing to use to begin with. Can anyone give an example of performing an HTTP GET?

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• Multiple asserts in single test?

  - by Gern Blandston

  Let's say I want to write a function that validates an email address with a regex. I write a little test to check my function and write the actual function. Make it pass. However, I can come up with a bunch of different ways to test the same function ([email protected]; [email protected]; test.test.com, etc). Do I put all the incantations that I need to check in the same, single test with several ASSERTS or do I write a new test for every single thing I can think of? Thanks!

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• One repository/multiple projects without getting mixed up?

  - by OverTheRainbow

  Hello After reading Joel's last article on Mercurial, I'm giving it a shot on XP as a single-user, single-computer source control system. One thing I'd like to check, though, is: It'd be easier to just create a repository of all the tiny projects I keep in eg. C:\VB.Net\, but the result is that the changes I make to the different projects therein (C:\VB.Net\ProjectA\, C:\VB.Net\ProjectB\, etc.) will be mixed in a single changelog. But if I use a single repository for all projects, when I do diff's or go through the change history, will I be able to filter data so that I only see changes pertaining to a given project? Otherwise, is creating repositories in each project directory the only solution? Thank you.

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• Get data from html form to ruby in Ruby on Rails

  - by Maestro1024

  Get data from html form to ruby in Ruby on Rails I have some html like this <html> <h1>Text to PDF</h1> <textarea name="comments" cols="40" rows="5"> Enter your Text here... </textarea><br> <input type="submit" value="Submit" /> </form> </body> </html> I want to give the value of the text into the controller for this page/view. How do I do this with rails? I am new to rails, what is the mechanism for this? I don't need to write to the database just want to hand it to the controller. If there is a good tutorial for this sort of thing that would be great, I am not convince I am approaching this correctly.

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• Beginners question: Variable in Javascript

  - by Andreas

  Hello everybody! I'm new to javascript and cant get this little thing to work. (all external scripts a of course loaded) I have this jQuery script: $('a.Link').click(function(){ autoComp('City'); }); function autoComp(strFormName) { var Company = 'Adobe Apple Microsoft'.split(" "); var City = 'London Paris Berlin'.split(" "); $('#'+strFormName).autocomplete(strFormName) } I cant get it to work. I've discovered that the problem is the last "strFormName" after .autocomplete Appreciate all the help I can get.

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• How to make a table view which can be scrolled for ever?

  - by mystify

  I have a set of 100 rows, pretty similar to values which can be selected in a picker. When the user scrolls the table, I want the rows to be appended like an forever-ongoing assembly-belt. So when the user scrolls down and reaches the row 100, and scrolls even further, the table view will show again row 1, and so on. Reverse direction same thing. My thoughts: don't display scroll indicators (they would make not much sense, probably) what value to return in the numberOfRows delegate method? This infinity constant? in cellForRowAtIndexPath: simply wrap the index around when it exceeds bounds?

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• Storing rich text documents

  - by David Veeneman

  This is a follow-up to another question I asked earlier today. I am creating a desktop app that stores rich text documents created in WPF (in a RichTextBox control). The app uses SQL Compact, and up until now, I had planned to store each document in a binary column in the database. I am rethinking that approach. Would it be better practice to store each rich text document in the file system, rather than saving it to the database? I figure I could put the documents in the same folder with the database, then store a relative path to each document in its database record, along with other information about the document (tags and so on). I'd like to know some pros and cons of that approach, along with ideas of what is generally considered best practice for this sort of thing. Thanks for your help.

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• FileSystemWatcher event trigger problem(s)

  - by Bahadir Cambel

  It seems like , FileSystemWatcher triggers events more than once. Here is my settings ; watcher = new FileSystemWatcher(); watcher.Path = @"D:\testSpace"; watcher.InternalBufferSize = 1024*64; watcher.Deleted += Triggered; watcher.Changed += Triggered; watcher.Created += Triggered; watcher.Error += ErrorOccured; watcher.NotifyFilter = NotifyFilters.LastWrite; watcher.IncludeSubdirectories = true; watcher.EnableRaisingEvents = true; One more thing that I found out that , new folder created event does not get triggered unless a new file created under the folder. do you guys know any work around for these issues ?

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• Integers in JavaScript

  - by muntoo

  I'm a beginner to Javascript so forgive me if I sound dumb because I learned some Javascript from W3Fools (which are really difficult tutorials - they don't explain anything I want to know, but everything I probably can guess from my experience with C++). I may be switching over to MDN, but if you can recommend any other tutorials, that be great. Anyways, so here's my question: I just read a few lines of this, and apparently: Numbers in JavaScript are "double-precision 64-bit format IEEE 754 values", according to the spec. This has some interesting consequences. There's no such thing as an integer in JavaScript, so you have to be a little careful with your arithmetic if you're used to math in C or Java. I've already seen that there are few of the data types (for variables) I'm used to from C++. But I didn't expect all numbers to automatically be floats. Isn't there any way to use integers, not float? Will a future version of JavaScript support ints?

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