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• Error in jsp program calling servlet variable

  - by megala

  hi i created one webapplication project.It containe one servlet file jsp file. I created one string variable in servlet and assign some value like /* sampleservlet.java *******/ String s=" WELCOME" My constraints I want to display the string in my jsp file.so that i import the servlet file inj jsp and i created object as ---call--- jsp file contain following coding <%sampleservlet call ;% <%call.s% But it shows error how to solve this?

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• Is developing iPhone apps in any language other than Objective-C ever a truly viable solution?

  - by David Foster

  I hear all this stuff about crazy ways to build iPhone apps using Ruby or C# under .NET or the like. Even stuff about developing apps on Windows using Java, or auto-generated apps using Flash CS5 or something. Now, I've never really spent any time at all investigating these claims—I just brushed them off as clumsy or cumbersome or down-right claptrap—but I'm a proud Objective-C programmer who's perhaps a little worried as to whether there's any truth in all of this?

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• Instantiating classes between jsp scriptlets

  - by Aliens

  Is it possible to instantiate a class and then invoke its methods between scriptlets in JSP? I am getting errors and I don't know why (java class and methods are fine). Any other way to do the same (i just want a string from a method in a class)?

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• Redundant code constructs

  - by Diomidis Spinellis

  The most egregiously redundant code construct I often see involves using the code sequence if (condition) return true; else return false; instead of simply writing return (condition); I've seen this beginner error in all sorts of languages: from Pascal and C to PHP and Java. What other such constructs would you flag in a code review?

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• How to intialize a variable from another script in bash?

  - by Zombies

  How can I set my intial variables in a re-usable way? I tried to do this by invoking something like this in my child script: ./init.bash And inside init.bash: prod="false" if [ "$prod" == "prod" ] then RUN_DIR=/home/windsor/.scripts/websites JAVA_DIR=/home/windsor/prog/websitechecker OUT_DIR=/tmp/ DB="prod" else if [ ! -a /tmp/test ] then mkdir /tmp/test fi DB="mydb" OUT_DIR=/tmp/test/ RUN_DIR=/home/windsor/workspaces/bash/websites JAVA_DIR=/home/windsor/workspaces/java/testrun fi cd $RUN_DIR

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• How can I add imports to an "eval"ed piece of clojure code?

  - by Zubair

  I would like to evaluate some clojure code entered by users interactively, and I would like to "use" certain namespaces and "import" certain Java classes as well. I end up running the code using: (defn execute-command [string-command] let [ code-with-context (add-code-context string-command) result (eval(read-string code-with-context)) ] result ) My question is how can I program "add-code-context" to add the required context to the code in "string-command"?

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• How do I parse an xml document as a stream using Scala?

  - by ScArcher2

  How do I parse an xml document as a stream using Scala? I've used the Stax API in java to accomplish this, but I'd like to know if there is a "scala" way to do this.

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• Resources and tutorials to get started on algorithms

  - by koldfyre

  I'm interested in learning about algorithms, both conceptually and practically, as a beginner. I want to learn about binary search trees and similar. What tutorials and example programs, preferably in Python or Java, will help me?

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• jetty deploy problem

  - by user550748

  I had deploy a project in jetty(jetty-wtp plugin) in eclipse server. when i start jetty server the console output wrong: java.lang.NoClassDefFoundError: javax/annotation/security/RunAs i also add common-annotations.jar to this project lib but cann't resolve this problem. my installed environment: JDK 1.6.0 jetty 8.0.0.M2 jetty-wtp http://download.eclipse.org/jetty/updates/jetty-wtp/development can anyone help me?:)

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• What is AppEngine database "cold start time"?

  - by Issumanual

  One of the more common complaints I have read about the AppEngine database (for Java) is that it is extremely slow when it come to "cold start time". What does this mean? And is it something I should be worried about?

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• Get ahold of session in command object in Grails

  - by UltraVi01

  How can I get the session from within a command object? I have tried: import org.springframework.security.context.SecurityContextHolder as SCH class MyCommand { def session = RCH.currentRequestAttributes().getSession() } This throws java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.

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• Flex AS3 Asynchronous Webservice example request

  - by user283403

  I want my web service to call a callback in my Flex client when it finishes a batch job that I have submitted already using a web method. What will I need to change on both server and client sides? I am using Java on server side.

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• How can I save content from another website to my database ?

  - by HJ-INCPP

  Hello, I want to upload dynamically content from a soccer live score website to my database. I also want to do this daily, from a single page on that website (the soccer matches for that day). If you can help me only with the connection and retrieval of data from that webpage, I will manage the rest. website: http://soccerstand.com/ language: php/java - mysql Thank you !

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• Get the File name with out file extension in VIM function.

  - by tr-sugumar

  I want to get the fine name with out the file extension in VIM. I wrote the following functions in my .vimrc file for compile and run the Java program. :function! JAVA_RUN() :!javac %^M :endfunction map <F3> :execute JAVA_RUN()<CR> :source $HOME/.vimrc<CR> In side the function how can I get the file name with out the extension.

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• Is there a universal way to get a nice String representation of a variable in VBA?

  - by HenryTyler

  In VBA, is there a nice way to get a String representation of a variable / object? Like Java's various String.valueOf(...) methods.

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• How do I play an AU file using .NET?

  - by mafutrct

  The AU file format is very common in the Java world. In .NET however, I found no built-in class to play this format. Did I miss something, or do I need to resort to using a third-party library?

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• Go - Raise an exception

  - by nevalu

  I would want to raise an exception as it's made in Python or Java --to finish the program with an error message--. An error message could be returned to a parent function: func readFile(filename string) (content string, err os.Error) { content, err := ioutil.ReadFile(filename) if err != nil { return "", os.ErrorString("read " + filename + ": " + err) } return string(content), nil } but I want that it can be finished when the error is found. Would be correct the next one? func readFile(filename string) (content string) { content, err := ioutil.ReadFile(filename) defer func() { if err != nil { panic(err) } }() return string(content) }

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• A way to automatically organize #imports in Xcode

  - by Arrel

  I love the "Organize Imports" command in Eclipse to implicitly add and remove classes imported into a source file (as in Java or ActionScript). Is there a command in Xcode to update the #import directives at the top of.m Objective-C files based on the classes referenced within the file?

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• what is the fastest-best PHP IDE on windows?

  - by vegatron

  hi I've tried a few php IDEs , but still searching for the FASTEST one all Java based IDEs are too slow, I have 2 computers to work, my home pc which is too fast, and my laptop witch is good , but cant handle a heave software. and I have to work on them both, so I'm looking for the best free ide which is fast I'm not talking about text-editors , because I already have np++ and its great, but looking for extra features to help me save time.. any tips?

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• information hiding in python

  - by ali

  in python tutorial added that python cannot hide its attributes from other classes. some thing such as private data in C++ or java..But also i know that we can use _ or __ to set some variables as privated one but it is not enogh. I think it is a week if it is not any thing to do it.

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• Objective C: Compare timeInMillis with current time

  - by Srivathsan Canchi

  Hello, In my iPhone application, I need to calculate the time difference between the time a message was created on the server, and the time my phone received it. The server (Java) puts in a number returned by System.currentTimeMillis() as metadata along with the message. How do I compare this number with the current time on the device? Could not find a suitable NSDate method to do this comparison. Thanks in advance!

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• How to parse the AndroidManifest.xml file inside an .apk package

  - by jnorris

  This file appears to be in a binary XML format. What is this format and how can it be parsed programmatically (as opposed to using the aapt dump tool in the SDK)? This binary format is not discussed in the in the documentation here: http://developer.android.com/guide/topics/manifest/manifest-intro.html Note: I want to access this information from outside the Android environment, preferably from Java.

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• solr or sphinx? which is better?

  - by scalalala

  I will use it to do full text search in my ruby on rails app. which is the best choice. solr use java to do this job. or sphix in ruby?

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• JPA and hibernate for Flex

  - by dejaninic

  I'm using JPA but I'm not sure how to use it for relation between two classes. I need to connect them @OneToMany. I have done this before but forgot. Is there any good tutorial for this or an example that is easy to understand. By the way this is a Flex application where I'm using BlazeDS for connection between Java and Flex.

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• How do I name a variable with acronym?

  - by Vishal

  For example in Java for Data Transfer Object I use as: ExampleDTO exampleDTO = new ExampleDTO(); What naming convention should I follow for similar in Python?

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