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• java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

  - by Nitin Garg

  I am trying to connect to mysql database using java on windows7. Inspite of adding the complete url of jdbcdriver jar file in CLASSPATH, java.lang.ClassNotFoundException: com.mysql.jdbc.Driver is thrown. Could anyone tell me what i am missing here?? it works if i add the jar file in project library but i want to do it by CLASSPATH itself. My classpath looks like this- C:\jython2.5.1\javalib\mysql-connector-java-5.1.12-bin.jar

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• use AMF instead of JSON on iPhone? (for web services)

  - by Henry

  Although iPhone support JSON natively, AMF is a binary protocol and it supposes to use much less bandwidth. Do you think using AMF is a good idea? Just found this AMF library in cocoa (Objective-C): http://github.com/nesium/cocoa-amf/

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• Memory layout of executable

  - by Ross

  Hi all, When loading an executable then segments like the code, data, bss and so on need to be placed in memory. I am just wondering, if someone could tell me where on a standard x86 for example the libc library is placed. Is that at the top or bottom of memory. My guess is at the bottom, close to the application code, ie., that would look something like this here: --------- 0x1000 Stack | V ^ | Heap ---------- Data + BSS ---------- App Code ---------- libc ---------- 0x0000 Thanks a lot, Ross

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• solve mathematical equation with 1 unknown (equations are dynamically built)

  - by chris-gr

  Hi, I have to built dynamically equations like following: x + x/3 + (x/3)/4 + (x/3/4)/2 = 50 Now I would like to evaluate this equation and get x. The equation is built dynamically. x is the leaf node in a taxonomy, the other 3 nodes are the super concepts. The divisor represents the number of children of the child nodes. Is there a library that allows to build such equations dynamically and resolve x? Thanks, Chris

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• Which JVMs do not support direct java.nio.ByteBuffer?

  - by Joe Holloway

  The release notes for Java NIO (in Java 1.4+) state that support for direct ByteBuffers is an optional feature. I am curious which JVM vendors/flavors do not support it? Should a JNI library always code for managed ByteBuffers and relegate direct ByteBuffers as an optimization? Thanks

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• iPhone: how to make key click sound for custom keypad?

  - by Kaffeine Coma

  Is there a way to programmatically invoke the keypad "click" sound? My app has a custom keypad (built out of UIButtons) and I'd like to provide some audio feedback when the user taps on the keys. I tried creating my own sounds in Garageband, but wasn't happy with any of my creations. If there isn't a standard way to invoke the key click, can anyone point me to a library of sounds that might have such a gem?

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• Google Data API on Symbian

  - by brsata

  I want to use Google Data API on a Symbian device with pys60 but I could'nt find any doc. Is there any way to install Google Data APIs Python Client Library on Symbian ?

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• Parse Directory Structure (Strings) to JSON using PHP

  - by Ecropolis

  I have an array of file-path strings like this videos/funny/jelloman.wmv videos/funny/bellydance.flv videos/abc.mp4 videos/june.mp4 videos/cleaver.mp4 fun.wmv jimmy.wmv herman.wmv Is there a library or easy way I can get to a data structure json or xml? Something like this: (I see there are a lot of snippets available for traversing actual folders, but again, I just have strings.) { files:{ file:[ { filename:'fun.wmv' }, { filename:'jimmy.wmv' }, { filename:'herman.wmv' } ], folder:{ foldername:'videos', file:[ { filename:'abc.mp4' }, { filename:'june.mp4' }, { filename:'cleaver.mp4' } ], folder:{ foldername:'funny', file:[ { filename:'jelloman.wmv' }, { filename:'bellydance.flv' } ] } } } }

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• Which .NET libraries do you use most ?

  - by Quandary

  Which .NET programming libaries do you use most ? I'm putting together a list, kind of "best of" SourceForge, CodePlex, Google Code, GitHub, etc. SourceForge.NET Nhibernate (database ORM) SharpZipLib (ZIP compression) itextsharp (PDF library) GitHub: JQuery (JavaScript) Google Code: aforge (imaging) Codeplex: Excel Data-Reader Other: bouncycastle.org (Encryption)

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• Is there a definitive solution for auto_complete in Rails?

  - by blee

  I'm using DHH's auto_complete plugin, but am in the process of updating my dependencies on plugins to gems where feasible. Is there a newer, gemified version of this library, or has another solution emerged as the de facto standard?

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• Avoiding session hijacking with Kohana

  - by Toto

  Do I have to do anything special to avoid session hijacking using Kohana framework? (Assuming the session is manipulated only with the Kohana Session library) Thanks in advance

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• On linux, what can cause dlopen to emit SIGFPE?

  - by kdt

  I have a library of dubious origins which is identified by file as a 32 bit executable. However, when I try to dlopen it on a 32 bit CentOS 4.4 machine, dlopen terminates with SIGFPE. Surely if there was something wrong with the format of the binary then dlopen should be handling an error? So the question is: What kinds of problems can cause dlopen to emit SIGFPE?

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• Converting keynote presentations to images on the ipad

  - by Scotty Allen

  I'd like to be able to read keynote presentation files on the ipad, and convert them to a series of images, one per slide. Is there an easy way of doing this? I briefly took a look at the internals of a keynote presentation, and the huge xml wad looks pretty daunting. Is there a library that can do this?

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• Why Ruby on Rails uses default Prototype?

  - by Anry

  I just recently started learning RoR. In Rails by default available Prototype. Why uses it is this library? Why is not jQuery, Dojo, Mootools, ExtJS ...

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• is there any difference between work om Office 2007 and 2003 in C#

  - by Gold

  hi i work with Office 2007 (excell) in my C# program. i do this reference: Microsoft Excel 12.0 Object Library it work excellent !, but if in the computer there is Office 2003 is it work good ? if not, what i need to do ? thank's in advance

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• Obfuscate Javascript in C# output

  - by James Jeffery

  Anyone know a way to obfuscate javascript before it's outputted to the browser? I was using http://www.javascriptobfuscator.com/ But I'm hoping there is a library that can do this on the fly. Help appreciated.

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• use AMF instead of JSON on iPhone?

  - by Henry

  Although iPhone support JSON natively, AMF is a binary protocol and it supposes to use much less bandwidth. Do you think using AMF is a good idea? Just found this AMF library in cocoa (Objective-C): http://github.com/nesium/cocoa-amf/

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• non reference-counting dictionary in objective-c

  - by Colin

  Is there any 'easy' way of having pure objective-c containers, such as NSMutableDictionary or CFMutableDictionary, that don't increment the reference count of added objects, without using the c++ standard library?

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• nonzeros in csr_matrix in scipy.sparse matrices

  - by user308476

  Dear all, There is a nonzero() method for the csr_matrix of scipy library, however trying to use that function for csr matrices result in an error, according to the manual that should return a tuple with row and colum arrays. Any ideas on this problem? Best regards, Umut

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• Helping using FirePHP to debug a .php application

  - by Angela

  Hi, just set up FirePHP and using a framework called Qcodo / Qcubed. Has anyone heard of these on SO? Been having challenges debugging -- trying to do a fairly simple new() and save() and then output via Ajax but not getting any kind of responsiveness from errors. Any help for us, two of us have checked it out but can't seem to get a response. Thanks! BTW, here's the class which seems to be creating the problems: http://github.com/allyforce/AF-upload/blob/master/Library/Target1.class.php

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• What is the use of interface constants?

  - by kunjaan

  I am learning Java and just found that the Interface can have fields, which are public static and final. I haven't seen any examples of these so far. What are some of the use cases of these Interface Constants and can I see some in the Java Standard Library?

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• Monitor serial port already open

  - by Cristiano

  Hi, I am try to read data over serial port already open. I have used C# and c++ library for use microsoft api (overlapped and not overlapped I/O), but not work. I can use same windows api? or other?? Thanks in advance for your availability, Cristiano http://bugbusters.altervista.org/index.php

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• list exported functions from dll with ctypes

  - by Tom

  Is there anyway to know which functions exported from the dll througth python foreign function library -ctypes- and if possible to know details about the exported functions throught ctypes. if yes could someone provide snippet of code

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• How do I change colors for the Java Docs Hover Over in Eclipse

  - by Ankur

  If you hover over a standard library Java method in Eclipse, you get a hover over dialog. How can you change the color of the text in that hover over dialog ? Thanks, Ankur

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• Why cant partial methods be public if the implementation is in the same assembly?

  - by Simon

  According to this http://msdn.microsoft.com/en-us/library/wa80x488.aspx "Partial methods are implicitly private" So you can have this // Definition in file1.cs partial void Method1(); // Implementation in file2.cs partial void Method1() { // method body } But you cant have this // Definition in file1.cs public partial void Method1(); // Implementation in file2.cs public partial void Method1() { // method body } But why is this? Is there some reason the compiler cant handle public partial methods?

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