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  • Execute Command Line Java program in background

    - by Mark Szymanski
    Is it possible to execute a Java program in the background so the user can execute other commands in front of it? For instance, here is how the console might look for said program: $ myProgram (executes program) Program Started! (output from myProgram) $ (the user can enter another UNIX command while myProgram is still running) Thanks in advance!

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  • What's going on here? Repeating rows in random list of lists.

    - by Jesse Aldridge
    I expected to get a grid of unique random numbers. Instead each row is the same sequence of numbers. What's going on here? from pprint import pprint from random import random nrows, ncols = 5, 5 grid = [[0] * ncols] * nrows for r in range(nrows): for c in range(ncols): grid[r][c] = int(random() * 100) pprint(grid) Example output: [[64, 82, 90, 69, 36], [64, 82, 90, 69, 36], [64, 82, 90, 69, 36], [64, 82, 90, 69, 36], [64, 82, 90, 69, 36]]

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  • JQUERY, AJAX Request and then loop through the data.

    - by nobosh
    Does anyone see anything wrong with the following: $.ajax({ url: '/tags/ajax/post-tag/', data: { newtaginput : $('#tag-input').val(), customerid : $('#customerid').val()}, success: function(data) { // After posting alert(data); arr = data.tagsinserted.split(','); alert(arr); //Loop through $.each(arr, function(n, val){ alert(n + ' ' + val) }); } }, "json"); tagsinserted is what's being returned, here is the full response: {"returnmessage":"The Ajax operation was successful.","tagsinserted":"b7,b4,dog,cat","returncode":"0"} Thanks

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  • Converting stream of jpg files to FLV stream

    - by Mark
    I work with a Panasonic hcm280a camera that can be controlled by my software, It generates a stream of jpeg files that are huge and I want to convert this stream to a FLV stream preferably with a good compressional ration Does FFMpeg do that? I am basically looking for an off the shelve open source software (or commercial software) that can generate that streaming media for me. Again my input is a stream of jpg files that come from the camera server. Any insight or comment would be greatly appreciated Thanks

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  • No tests found with test runner 'JUnit 4'

    - by lamisse
    Hello , my java test worked well from Eclipse ,I do not know I relaunch test from run menu and then have the following message: No tests found with test runner 'JUnit 4' In the .classpath file I have all jar files, and at the end have : <classpathentry exported="true" kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/> <classpathentry kind="output" path="bin"/> </classpath> please help!

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  • sdf file (sqlce) not copying to emulator

    - by MicTech
    I have problem with copying sdf file to WM emulator. My solution structure MyApp.DataLayer - there is sdf file MyApp.WMUI - this is windows mobile winform app sdf file has set build action: content copy to output directory: copy always But if I deploy app to emulator, that sdf file doesn't copy.

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  • how to access generated groupname for asp radiobutton

    - by rap-uvic
    Hi, I need to access radiobutton groupname in my jquery. However, groupname that's rendered for an asp radiobutton is kind of different. Example: <asp:RadioButton runat="server" GroupName="payment" ID="creditcard" Checked="true" value="creditcard" /> will generate: <input type="radio" checked="checked" value="creditcard" name="ctl00$ContentPlaceHolder1$payment" id="ctl00_ContentPlaceHolder1_creditcard"> I can't work with <%=creditcard.GroupName% in jquery. Is there a way I can get the generated groupname or name for it?

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  • getting error while converting wav to amr using ffmpeg

    - by sohilvassa
    hello friends I am using ffmpeg to convert amr to wav and wav to amr.Its successfully converting amr to wav but not viceversa. As ffmpeg is supporting amr encoder decoder, its giving error. ffmpeg -i testwav.wav audio.amr (working fine) Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height

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  • it means quick-select algorithm?

    - by matin1234
    Hi, I have a question from my homework. I think my teacher needs an algorithm like quick select for this question is this correct? The question: Following a program (Subroutine) as a "black box" is given (for example, inside it is not clear and we do not even inside it) with the worst case linear time, can find the middle of n elements. Using this black box, get a simple linear algorithm that takes input i and find the element which its rank is equal to i (among the n elements) Thanks.

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  • Simulating Key Press event using Python for Linux

    - by user308827
    Hi, I am writing a script to automate running a particular model. When the model fails, it waits for a user input (Enter key). I can detect when the model has failed, but I am not able to use python (on linux) to simulate a key press event. Windows has the SendKeys library to do this but I was wondering if there is a similar library for python on linux. Thanks!

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  • jqgrid problem:Where is the "filter" param?

    - by davykiash
    Am curently looking at the jqgrid documentation on advanced search and specifically search_adv.php file that comes with it. I have noted the following line of code $searchstr = Strip($_REQUEST['filters']); However when I look at the output on firebug of my jqgrid post I see _search true nd 1270148130165 page 1 rows 10 searchField income_types_desc searchOper eq searchString 5 sidx income_types_desc sord asc Where on earth is the "filter" param?

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  • iPhone 3.5mm jack based application

    - by maverick
    I want to encode data via a DTMF encoder and send it back to the iPhone via the 3.5mm Jack. Is it possible to send data back into the 3.5mm jack. conventionally audio signals are sent out over the iPhone 3.5mm jack? Is there provision to deal with DTMF and 3.5mm jack based input applications in Iphone's External Accessory framework?

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  • flowchart library for business process visualization

    - by jonny
    I need to generate flowchart from business process specification (tasks, their input, output points, roles applicable for each task... ) stored in a database. What I need is javacript (preferably, open-sourced) library which can generate a shiny flowchart with swimlines. Ideally I should be able to edit workflow connections and send changes back to database. Any recommendations? UPDATE By flowchart I mean something like this:

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  • Should my WCF webservice return a 500 or 200 http code (soap fault / functional return message)

    - by Tim Mahy
    Hi all, after reading the SOAP specs, it states that a SOAP Fault should return a http 500 errorcode, so when a SoapException is thrown, WCF returns a 500 error code. Now, I'm looking for some best practices to when return a functional soap error message and when to return a SOAP Fault. What would you guys return when a functional error occurred while processing the message because of the input message contains some functional errors, a 500 SOAP Fault or a 200 Soap response containing some error message ?

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  • ActionScript Comparing Arrays

    - by TheDarkIn1978
    how can i evaluate whether my test array is equal to my static constant DEFAULT_ARRAY? shouldn't my output be returning true? public class myClass extends Sprite { private static const DEFAULT_ARRAY:Array = new Array(1, 2, 3); public function myClass() { var test:Array = new Array(1, 2, 3); trace (test == DEFAULT_ARRAY); } //traces false

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  • Perl glob one liner

    - by user260826
    Im working in a perl one liner to invert the contents of my file contents or perform operations, I was able to generate the script and one liner, but this one liner only works by entering file by file. perl -i -ne '$a=reverse $_;print "$a\n"' <filename> I want to change my one liner to get input from a range of files but when i do: perl -i -ne '$a=reverse $_;print "$a\n"' | ls -al I just get screen output of ls -al Not sure how to proceed. Thanks

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  • Code Golf: Numeric Equivalent of an Excel Column-Name

    - by Vivin Paliath
    Can you figure out the numeric equivalent of an Excel column string in the shortest-possible way, using your favorite language? For example, the A column is 1, B is 2, so on and so forth. Once you hit Z, the next column becomes AA, then AB and so on. Rules: Here is some sample input and output: A: 1 B: 2 AD: 30 ABC: 731 WTF: 16074 ROFL: 326676 I don't know if the submitter is allowed to post a solution, but I have a Perl solution that clocks in at 125 characters :).

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  • Creating a readable FxCop report

    - by User1
    Is there a good tool that can convert the XML output of FxCop into something that can be put into a Word document? I'd prefer not to write an XML-FO XSLT transform, maybe someone did something like that already.

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  • Using a Windows Form with Ruby

    - by Gil Milow
    Is it possible to create a form on Windows using Ruby? I have a Ruby script and I would like to have an input form to ask for a user's password, then use this in the rest of my script. update: I have successfully done this with wxRuby, although it looks ugly. Shoes looks promising, I might look into that if I need to do this again..

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  • [ASP.NET MVC] Ajax.BeginForm doesn't work asynchronously

    - by Tony
    Hi, I've read the article http://davidhayden.com/blog/dave/archive/2009/05/19/ASPNETMVCAjaxBeginForm.aspx and now I have small problem with that code: <%using (Ajax.BeginForm("ChangeData", new AjaxOptions { UpdateTargetId = "myLabel" })) { %> <input id="mbutton" type="submit" value="blabla" /> <%} %> <label id="myLabel"></label> then, in the MyBookController.cs is the code to be invoked asynchronous: public ActionResult ChangeData() { return Content("OK"); } but, it doesn't work asynchronously, the compiler doesn't go inside that method

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  • AWK scripting :How to remove Field separator using awk

    - by anil-1985
    Need the following output ONGC044 ONGC043 ONGC042 ONGC041 ONGC046 ONGC047 from this input Medium Label Medium ID Free Blocks =============================================================================== [ONGC044] ECCPRDDB_FS_43 ac100076:4aed9b39:44f0:0001 195311616 [ONGC043] ECCPRDDB_FS_42 ac100076:4aed9b1d:44e8:0001 195311616 [ONGC042] ECCPRDDB_FS_41 ac100076:4aed9af4:4469:0001 195311616 [ONGC041] ECCPRDDB_FS_40 ac100076:4aed9ad3:445e:0001 195311616 [ONGC046] ECCPRDDB_FS_44 ac100076:4aedd04a:68c6:0001 195311616 [ONGC047] ECCPRDDB_FS_45 ac100076:4aedd4a0:6bf5:0001 195311616

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  • Help with chat server

    - by mithun1538
    I am designing a chat server in java. The communication is Http based and not socket based. In the client side I have an applet. In the server side I have a servlet. Applet: I create a new thread to listen for incoming messages(GET method). The main thread is used to send messages(POST messages). The partial code is : public void start() { System.out.println("Creating new thread"); Thread thread = new Thread(this); thread.start(); } private String getNewMessage() { System.out.println("Inside getNewMessage"); String msg = null; try { while(msg == null) { System.out.println("Trying to listen to servlet"); URL servlet = new URL(getCodeBase(), "NewServlet?mode=msg"); URLConnection con = servlet.openConnection(); con.setUseCaches(false); DataInputStream din = new DataInputStream(new BufferedInputStream(con.getInputStream())); msg = din.readUTF(); System.out.println("message read :" + msg); } } catch (Exception e) { e.printStackTrace(); } return msg + "\n"; } public void run() { System.out.println("Inside new thread"); while(true) { System.out.println("inside first while"); String newMsg = getNewMessage(); chatOutput.append(newMsg); System.out.println("Appended!!"); } } private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { String message = chatInput.getText(); chatInput.setText(""); chatOutput.append(message + "\n"); try { System.out.println("Trying to send msg :" + message); URL url = new URL(getCodeBase(), "NewServlet"); URLConnection servletConnection = url.openConnection(); servletConnection.setDoInput(true); servletConnection.setDoOutput(true); servletConnection.setUseCaches(false); servletConnection.setRequestProperty("Content-Type", "application/octet-stream"); ObjectOutputStream out = new ObjectOutputStream(servletConnection.getOutputStream()); out.writeObject(message); out.flush(); out.close(); System.out.println("Message sent!"); } catch (Exception e) { e.printStackTrace(); } } This next code is from the servlet side. it uses the Observable interface to identify and send messages to clients. public class NewServlet extends HttpServlet { // getNextMessage() returns the next new message. // It blocks until there is one. public String getNextMessage() { // Create a message sink to wait for a new message from the // message source. System.out.println("inside getNextMessage"); return new MessageSink().getNextMessage(source);} @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println("Inside Doget"); response.setContentType("text/plain"); PrintWriter out = response.getWriter(); out.println(getNextMessage()); } // broadcastMessage() informs all currently listening clients that there // is a new message. Causes all calls to getNextMessage() to unblock. public void broadcastMessage(String message) { // Send the message to all the HTTP-connected clients by giving the // message to the message source source.sendMessage(message); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println("Inside DoPost"); try { ObjectInputStream din= new ObjectInputStream(request.getInputStream()); String message = (String)din.readObject(); System.out.println("received msg"); if (message != null) broadcastMessage(message); System.out.println("Called broadcast"); // Set the status code to indicate there will be no response response.setStatus(response.SC_NO_CONTENT); } catch (Exception e) { e.printStackTrace(); } } /** * Returns a short description of the servlet. * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; } MessageSource source = new MessageSource();} class MessageSource extends Observable { public void sendMessage(String message) { System.out.println("inside sendMsg"); setChanged(); notifyObservers(message); } } class MessageSink implements Observer { String message = null; // set by update() and read by getNextMessage() // Called by the message source when it gets a new message synchronized public void update(Observable o, Object arg) { // Get the new message message = (String)arg; // Wake up our waiting thread notify(); } // Gets the next message sent out from the message source synchronized public String getNextMessage(MessageSource source) { // Tell source we want to be told about new messages source.addObserver(this); System.out.println("AddedObserver"); // Wait until our update() method receives a message while (message == null) { try { wait(); } catch (Exception ignored) { } } // Tell source to stop telling us about new messages source.deleteObserver(this); // Now return the message we received // But first set the message instance variable to null // so update() and getNextMessage() can be called again. String messageCopy = message; message = null; System.out.println("Returning msg"); return messageCopy; } } As you can see I have included System.out.println("Some message"); in some places. this was just for debugging purposes. In java console, i get the following output: Creating new thread Inside new thread. inside first while. Inside getNewMessage. Trying to listen to servlet. In the servlet side, i get the following output in the tomcat logs: Inside Doget. inside getNextMessage. AddedObserver. After i type a message in the applet, and send it, I get the foll output in java console: Trying to send msg :you deR?? Message sent! But in servlet side, I dont get anything in the logs. I used the O'Reily Java Servlet Programming as reference(The observer interface comes from there). But I am not getting any chat communication between two clients. As can be understood from the logs, the POST method is not called. Any reason for this?

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  • SHA-1 and Unicode

    - by Andrew
    Hi everyone, Is behavior of SHA-1 algorithm defined for Unicode strings? I do realize that SHA-1 itself does not care about the content of the string, however, it seems to me that in order to pass standard tests for SHA-1, the input string should be encoded with UTF-8.

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