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  • Make character escape from shot

    - by M28
    Hello all math masters, I got a problem for you: I have a 2D game (top down), and I would like to make the character escape from a shot, but not just walk away from the shot (I mean, don't be pushed by the shot), I want it to have a good dodging skills. The variables are: shotX - shot x position shotY - shot y position shotSpeedX - shot x speed shotSpeedY - shot x speed charX - character x position charY - character y position keyLeft - Set to true to make the character press the to left key keyRight - Set to true to make the character press the to right key keyUp - Set to true to make the character press the to up key keyDown - Set to true to make the character press the down key I can understand the following languages: C/C++ Java Actionscript 2/3 Javascript

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  • How can I add a default header to my source files automatically in Eclipse?

    - by John
    Hi. I'm trying to figure out how I can have a comment header automatically added to all new source files in my eclipse java project. I've looked around but I haven't found a simple solution to automate this process. I gave JAutodoc a try, and even though it does allow me to specify a header I still had to tell the plugin manually to inject the header and it didn't seem very fond of my keyword-subsitution. I'm by the way using the Maven2 plugin for Eclipse for most of my projects if that's any help. Any tips?

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  • How to improve IntelliJ code editor speed?

    - by Hoàng Long
    I am using IntelliJ (Community Edition) for several months, and at first I'm pleased about its speed & simplicity. But now, after upgrading to version 10, it's extremely slow. Sometimes I click a file then it takes 5 - 15 seconds to open that file (it freeze for that time). I don't know if I have done anything which cause that: I have installed 2 plugins(regex, sql), and have 2 versions of IntelliJ on my machine (now the version 9 removed, only version 10 remains). Is there any tips to improve speed of code editor, in general, or specifically IntelliJ? I have some experience when using IntelliJ: 1. Should open IntelliJ a while before working, cause it needs time for indexing. Don't open too many code tabs Open as less other program as possible. I'm using 2 GB RAM WinXP, and it just seems fairly enough for Java, IntelliJ & Chrome at the same time.

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  • How to use @PersistentCapable annotation in Scala 2.8

    - by Gero
    Hi, I'm switching from Scala 2.7.7 to Scala 2.8.0RC3 and now a few of my classes don't compile anymore. The problem is in the @PersistentCapable annotation: import javax.jdo.annotations._ import java.util.Date @PersistenceCapable{identityType=IdentityType.APPLICATION} class Counter(dt: Date, cName: String, vl: int) { <.. snip ..> } This code results in the following compilation errors: [ERROR] /Users/gero/prive/kiva/kivanotify-gae/src/main/scala/net/vermaas/kivanotify/model/LoanProcessed.scala:7: error: expected start of definition [INFO] @PersistenceCapable{val identityType = IdentityType.APPLICATION} I already tried a couple of variations, did some Googling but without luck. Any ideas on how I can use the @PersistentCapable annotation with Scala 2.8.0 RC3? Thanks, Gero

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  • XSLT transformations in Ruby and JRuby

    - by jpatokal
    Simple question: are there any solid XSLT libraries that work in both Ruby and JRuby? REXML works in both, but does not have XSLT support. ruby-xslt doesn't work in JRuby. The latest Nokogiri betas do support JRuby, but the support is still buggy and throws occasional NullPointerExceptions for XML input that works fine in Ruby. (In particular, any transforms that don't result in valid XML cause it to barf, even if xsl:output is set to 'text'!) JXslt is just a wrapper for Java's Xalan/Saxon and doesn't work in Ruby. Please tell me I'm missing something?

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  • is it possible to mix DHTML and Applet for Drag and drop?

    - by indra
    I am working on some example to find if a Div (DHTML) on to Java Applet in a web page. I used YUI JS Drag drop library to make the div as droppable item and made the div surrounding the Applet as Drop Target. When I dropped it in the Div containing Applet, I am Calling some method in the applet from Javascript Drop handler? This is fine, but I have the problem if the applet contains different objects and regions , how to identify which object it is dropped on? is there any other approach to work with DHTML and applets for Drag and Drop? Also, is it possible to write DD between two applets? Thanks in advance.

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  • Matlab tutorial for programmers

    - by Jonas
    I'm getting some new students soon, who will be writing Matlab code. They're new to Matlab, but they have experience coding in Java and C++. I'm going to have them go through the 'Getting Started' section of the Matlab help. In addition, I want to give a small tutorial with the goal to prevent them from making some of the most common mistakes people make when switching to Matlab ("Matlab starts counting at 1"), and show them some features that they may not be aware of when coming from other languages ("you can subtract a scalar directly from an array, and for vectors, there's bsxfun"). What are the most important things I should tell them?

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  • Best practice for installing python modules from an arbitrary VCS repository

    - by fmark
    I'm newish to the python ecosystem, and have a question about module editing. I use a bunch of third-party modules, distributed on PyPi. Coming from a C and Java background, I love the ease of easy_install <whatever>. This is a new, wonderful world, but the model breaks down when I want to edit the newly installed module for two reasons: The egg files may be stored in a folder or archive somewhere crazy on the file system. Using an egg seems to preclude using the version control system of the originating project, just as using a debian package precludes development from an originating VCS repository. What is the best practice for installing modules from an arbitrary VCS repository? I want to be able to continue to import foomodule in other scripts.

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  • C code autocomplete in Eclipse

    - by Ittai
    Hi, I'm a Java developer and I've downloaded the Eclipse for C (course purposes) and to my amazement the control+space shortcut (for autocomplete) did not work. I've created a new project and a new class using the wizzards and started to type "print" and then tried to find an autocomplete feature. After a bit of googling I arrived at C/C++-Editor-Content Assist-Advanced and there I verified that Help proposals,Parsing-based proposals and Template proposals options were checked. I then went over to the Keys preferences page using the link at that page and entered a binding for all relevant content assist from before C\C++ Content Assist (type...) and chose in the When box the C\C++ Editor option. But alas no autocompletion was offered. Can someone please point me to the right direction? Thanks, Ittai

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  • What kinds of job scheduler framework or solution do you recomend on window server system

    - by Samuel.P
    Hi Guys My Company is running a lots of batch jobs to process data for partners. We used to use sql server agent to execute batch process. I found it's very difficult to get batch process information like log or status when i working on sql server's agent. So I'd like to change my company's job scheduling process to another stable solution But I dind't know which solutions to choose. I tried to find as same solution as CA Autosys. My Company use window server system. We shoud consider framework or solution should be configured using solution's api because i plan to make a asp.net web application to manage our job shceduler. What kinds of job scheduler Framework or inexpensive solution do you suggest? Regards, Park PS: I think Quartz Framework has a good reputation on J2EE system. But I am not sure Quartz.NET is as good as orginal java version.

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  • Python Django vs ASP.NET MVC

    - by eddyc05
    Hey guys ! i'm fairly new at web development scene and i was wondering if you guys can help me break up the pros and cons of using python django vs asp.net mvc besides the maturity level of its framework. I have intermediate experience with JAVA. As of right now, i'm leaning towards python but i just wanted to make sure i am making the right choice. I find myself limited with books available on asp.net web developments. I am aware that there is the storefront example on the official asp.net site. However, that tutorial was a little hard for me to follow. I've done a research around and was hoping python could be my next available choice. There are more tutorials available online for python anyways. What do you guys think??

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  • SQL bottleneck, how to fix

    - by masfenix
    This is related to my previous thread: http://stackoverflow.com/questions/3069806/sql-query-takes-about-10-20-minutes However, I kinda figured out the problem. The problem (as described in the previous thread) is not the insert (while its still slow), the problem is looping through the data itself Consider the following code: Dim rs As DAO.Recordset Dim sngStart As Single, sngEnd As Single Dim sngElapsed As Single Set rs = CurrentDb().QueryDefs("select-all").OpenRecordset MsgBox "All records retreived" sngStart = Timer Do While Not rs.EOF rs.MoveNext Loop sngEnd = Timer sngElapsed = Format(sngEnd - sngStart, "Fixed") ' Elapsed time. MsgBox ("The query took " & sngElapsed _ & " seconds to run.") As you can see, this loop does NOTHING. You'd expect it to finish in seconds, however it takes about 857 seconds to run (or 15 minutes). I dont know why it is so slow. Maybe the lotusnotes sql driver? any other ideas? (java based solution, any other solution) What my goal is: To get all the data from remote server and insert into local access table

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  • What kind of assemblies can be called using P/Invoke ?

    - by milan
    Hi all, I allready asked at: Is it possible to call unmanaged code using C# reflection from managed code ? if it is possible to call C/C++ library unmanaged function with Invoke and reflection from .NET and the answer is yes. What I am not clear about is can I call using P/Invoke ANY assembly written/compiled/build with other compilers on my Windows PC like Labwindows/CVI(have some kind of C compiler) or Java written dll's, exe. If this is possible is it the same as explained in above given link using "Marshal.GetDelegateForFunctionPointer" ? Thanks! Milan.

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  • Can someone explain me implicit conversions in Scala?

    - by Oscar Reyes
    And more specifically how does the BigInt works for convert int to BigInt? In the source code it reads: ... implicit def int2bigInt(i: Int): BigInt = apply(i) ... How is this code invoked? I can understand how this other sample: "Date literals" works. In. val christmas = 24 Dec 2010 Defined by: implicit def dateLiterals(date: Int) = new { import java.util.Date def Dec(year: Int) = new Date(year, 11, date) } When int get's passed the message Dec with an int as parameter, the system looks for another method that can handle the request, in this case Dec(year:Int) Q1. Am I right in my understanding of Date literals? Q2. How does it apply to BigInt? Thanks

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  • Error while importing SSL into jboss 4.2 ?

    - by worldpython
    I've tried to setup .keystore on Jboss 4.2. due to this documentation from jboss community http://community.jboss.org/wiki/sslsetup but Jboss console generate this error LifecycleException: service.getName(): "jboss.web"; Protocol handler start failed: java.io.FileNotFoundException: C:\Documents and Settings\mebada\.keystore (The system cannot find the file specified) even I specify location of keystore in server.xml <Connector className = "org.apache.coyote.tomcat4.CoyoteConnector" address="${jboss.bind.address}" port = "8443" protocol="HTTP/1.1" SSLEnabled="true" scheme = "https" secure = "true"> <Factory className = "org.apache.coyote.tomcat4.CoyoteServerSocketFactory" keystoreFile="D:/Projects/Demo/jboss-4.2.3.GA/jboss-4.2.3.GA/server/default/conf/server.keystore" keystorePass="tc-ssl" protocol = "TLS"></Factory> Any Help ? Thanks in advance

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  • Classes missing if application runs for a long time

    - by Rogach
    I have a funny problem - if my application runs for a long time ( 20h), then sometimes I get NoClassDefFound error - seems like JVM decided that the class is not going to be used anyway and GCd it. To be a bit more specific, here's an example case: object ErrorHandler extends PartialFunction[Throwable,Unit] { def isDefinedAt(t: Throwable) = true def apply(e: Throwable) =e match { // ... handle errors } } // somewhere else in the code... try { // ... long running code, can take more than 20 hours to complete } catch (ErrorHandler) And I get the following exception: Exception in thread "main" java.lang.NoClassDefFoundError: org/rogach/avalanche/ErrorHandler$ If that try/catch block runs for smaller amounts of time, everything works as expected. If anyone is interested, here is the codebase in question: Avalanche I need to note that I saw this and similar problems only on Cent OS 5 machines, using JRE 6u26 and Scala 2.9.1 / 2.9.2. What could be the cause of this problem?

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  • begin...end VS braces {...} VS indentation grouping

    - by Halst
    Hi, everyone. I don't want to fuel any holy-wars here, but I need to ask your opinion. Right now I'm in process of designing a Hardware Description Language as a project in my university. I decided to take VHDL language and just add some syntax-sugar 'coz VHDL is rather obese in syntax. I decided to use indentation to group blocks of code (like in Python), and I'm strongly criticized for that. Originally Begin...End; grouping is used in VHDL language. I have no clue what are cons and pros of these 3 types of grouping, the only thing I know is that I like Python style and I don't understand if it's usage could be erroneous or something? What do you think? What do you like? (hope that I can get some feedback from people who extensively used different languages with different code-grouping syntax, like Pasca, Ada, Delphi, C, C++, C#, Java, Python)

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  • Using the Antenna and J2ME Polish preprocessors interchangeably and setting a variable value

    - by walter
    I have J2ME code, which I want to be able to compile using the J2ME Polish preprocessor or the wtkpreprocessor (antenna). They mostly use the same directives so it usually works, but ... When I want to insert an URL value in the Java code this gives a problem. In Antenna the code would look like this: //#ifdef my.url //# System.out.println("My Url"); //#expand String location = "%my.url%"; //#else System.out.println("Default"); String location = "http://www.some.default.url.com"; //#endif and in J2ME Polish it would look like this: //#ifdef my.url:defined //# System.out.println("My Url"); //#= String location = "${my.url}"; //#else System.out.println("Default"); String location = "http://www.some.default.url.com"; //#endif I want some way in which I can use the preprocessors interchangeably and still be able to set the url in the build.xml, any ideas?

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  • Apply Alphabetical Filters on listView on Android os

    - by mudit
    Hi.. i need to create a list view that display same functionality as Contact App. I need to have a scroller through which i can traverse the list alphabetically. To achieve this i am following an example from API demos "com.example.android.apis.view.List1.java". When i implement this functionality on a static list view = it is working fine. But when i try this on a dynamic listview= it is not working. Plz help...

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  • my android app runs fine in the emulator, but when i publish it it's wrong

    - by Charlie
    i have an app that has a few checkboxes in the settings and then compiles a remote sql based on the checkboxes selected. i ran it in the emulator and it's fine. but then i exported it and published it as an app, and the same checked boxes aren't being passed correctly. i wonder if it's a caching issue or something. tried deleting the apks a few times and republish but to no avail. i "fake-edited" the source java and then export again, still no difference. i'm kind of new to eclipse but is there a force build option? i only see build-automatically option under project but not sure how i can make sure that the apk exported is the same as run in the emulator edit the emulator is version 1.5, and my phone is nexus one running 2.1- not sure if that makes a difference thanks

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  • using BOSH/similar technique for existing application/system

    - by SnapConfig.com
    We've an existing system which connects to the the back end via http (apache/ssl) and polls the server for new messages, needless to say we have scalability issues. I'm researching on removing this polling and have come across BOSH/XMPP but I'm not sure how we should take the BOSH technique (using long lived http connection). I've seen there are few libraries available but the entire thing seems bloaty since we do not need buddy lists etc and simply want to notify the clients of available messages. The client is written in C/C++ and works across most OS so that is an important factor. The server is in Java. does bosh result in huge number of httpd processes? since it has to keep all the clients connected, what would be the limit on that. we are also planning to move to 64 bit JVM/apache what would be the max limit of clients in that case. any hints?

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  • How to update document object value in loop (Javascript)

    - by Graham
    Hi folks i am a beginer to Java script so appologies if this is a dumb question. I am trying to put the following in a for loop but I can't seem to get it to work. if (rowID==1) { document.form1.class_titleDis_1.value=class_title; } if (rowID==2) { document.form1.class_titleDis_2.value=class_title; } This is what I tried var i=1; for (i=1;i<=2;i++) { document.form1.(class_titleDis_)+i.value=class_title; } I would be really grateful for any suggestions. Graham

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  • What (kind of) project could I create to learn JavaScript?

    - by Aziz Light
    Hello, I started learning JavaScript a while ago. It's a fairly easy programming language considering that I learned Java in university, that I know php pretty well and that I already played around with python and ruby. The problem is that to properly learn a programming language I usually create a project. In javascript, I just don't know what kind of project I could create - that is, a project that is not web-based or related to the web browser. Can I create javascript shell scripts? Where is javascript commonly used beside the web browsers? So, can someone actually give me some ideas please?

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  • Programming related name for a kitten? [closed]

    - by andrhamm
    I am a programmer and I just got my first kitten. A Google search for nerdy/geeky cat names was unimpressive. She's a little black kitten with a very courageous and adventurous attitude! She has a little light gray spot on her chest which might turn white with time. Here she is on my Flickr Which name would you suggest? Which of these do you like? It should be something short that has a couple contrasting sounds so it stands out a bit when you say it. PHP is my favorite scripting language but it makes for a lousy name :P Java Pixel Perl Ruby Gizmo Mocha Thanks for the help!

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  • How to create a SOAP REQUEST using ASP.NET (VB) without using Visual

    - by user311691
    Hi all , I urgently need your help . I am new to consuming a web service using SOAP protocol. I have been given a demo webservice URL which ends in .WSDL and NOT .asml?WSDL. The problem is I cannot add a web reference using Visual studio OR Disco.exe or Wsdl.exe - This webservice has been created on a java platform and for security reasons the only way to make a invoke the webservice is at runtime using SOAP protocol IN asp.net (VB). I I have created some code but cannot seem to send the soap object to the receiving web service. If I could get a solution with step by step instructions on how I can send a SOAP REQUEST. Below is my code and all am trying to do is send a SOAP REQUEST and receive a SOAP RESPONSE which I will display in my browser. <%@ page language="vb" %> <%@ Import Namespace="System.Data"%> <%@ Import Namespace="System.Xml"%> <%@ Import Namespace="System.Net"%> <%@ Import Namespace="System.IO"%> <%@ Import Namespace="System.Text"%> <script runat=server> Private Sub Page_Load() Dim objHTTPReq As HttpWebRequest Dim WebserviceUrl As String = "http://xx.xx.xx:8084/asy/wsdl/asy.wsdl" objHTTPReq = CType(WebRequest.Create(WebserviceUrl), HttpWebRequest) Dim soapXML As String soapXML = "<?xml version='1.0' encoding='utf-8'?>" & _ " <soap:Envelope xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'" & _ " xmlns:xsd='http://www.w3.org/2001/XMLSchema'"& _ " xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/' >"& _ " <soap:Body> "& _ " <validatePaymentData xmlns='http://asybanks.webservices.asycuda.org'> " & _ " <bankCode>"& bankCode &"</bankCode> " & _ " <PaymentDataType>" & _ " <paymentType>"& payment_type &"</paymentType> " & _ " <amount>"& ass_amount &"</amount> " & _ " <ReferenceType>" & _ " <year>"& year &"</year> " & _ " <customsOfficeCode>"& station &"</customsOfficeCode> " & _ " </ReferenceType>" & _ " <accountNumber>"& zra_account &"</accountNumber> " & _ " </PaymentDataType> " & _ " </validatePaymentData> " & _ " </soap:Body> " & _ " </soap:Envelope> " objHTTPReq.Headers.Add("SOAPAction", "http://asybanks.webservices.asycuda.org") objHTTPReq.ContentType = "text/xml; charset=utf-8" objHTTPReq.ContentLength = soapXML.Length objHTTPReq.Accept = "text/xml" objHTTPReq.Method = "POST" Dim objHTTPRes As HttpWebResponse = CType(objHTTPReq.GetResponse(), HttpWebResponse) Dim dataStream As Stream = objHTTPRes.GetResponseStream() Dim reader As StreamReader = new StreamReader(dataStream) Dim responseFromServer As String = reader.ReadToEnd() OurXml.text = responseFromServer End Sub </script> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title> XML TRANSACTION SIMULATION - N@W@ TJ </title> </head> <body> <form id="form1" runat="server"> <div> <p>ZRA test Feedback:</p> <asp:label id="OurXml" runat="server"/> </div> </form> </body> </html> the demo webservice looks like this: <?xml version="1.0" encoding="UTF-8" ?> - <!-- WEB SERVICE JAVA DEMO --> - <definitions targetNamespace="http://asybanks.webservices.asycuda.org" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:apachesoap="http://xml.apache.org/xml-soap" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:y="http://asybanks.webservices.asycuda.org"> - <types> - <xs:schema elementFormDefault="qualified" targetNamespace="http://asybanks.webservices.asycuda.org" xmlns="http://www.w3.org/2001/XMLSchema"> SOME OTHER INFORMATION AT THE BOTTOM <soap:address location="http://xx.xx.xx:8084/asy/services/asy" /> </port> </service> </definitions> From the above excerpt of the wsdl url webservice, I am not sure which namespace to use for soapACTION - please advise.... Please if you could comment every stage of a soap request and provide a working demo - I would be most grateful as I would be learning rather than just assuming stuff :)

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