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  • Why the generated key size is not constant?

    - by Tom Brito
    The following code prints randomly 634, 635, 636, each time I run it. Why its not constant? public static void main(String[] args) throws Exception { KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("RSA", "BC"); keyPairGen.initialize(1024); RsaKeyPair keyPair = new RsaKeyPair(keyPairGen.generateKeyPair()); System.out.println(keyPair.getPrivate().getEncoded().length); }

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  • how to copy files without showing dos window

    - by vinaym
    I have the following code to copy files sprintf(command, "copy /Y %s %s", sourceFile, targetFile); system(command); It works except for the dos window showing up which is very annoying. I am trying to use CreateProcess() (with an #ifdef for WINNT), but not sure how to setup the command line for the same. Any other options for copying files in C (on windows) without showing dos window?

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  • how to ensure that Nhibernate is inside a transaction when saving, updating or deleting

    - by pms1969
    I'd like to ensure that when I'm persisting any data to the database, using (Fluent)NHibernate, that the operations are executed inside a transaction. Is there anyway of checking that a transaction is active via an interceptor? Or any other eventing mechanism? More specifically, I'm using the System.Transaction.TransactionScope for transaction management, and just want to stop myself from not using it.

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  • Java array of arry [matrix] of an integer partition with fixed term

    - by user335209
    Hello, for my study purpose I need to build an array of array filled with the partitions of an integer with fixed term. That is given an integer, suppose 10 and given the fixed number of terms, suppose 5 I need to populate an array like this 10 0 0 0 0 9 0 0 0 1 8 0 0 0 2 7 0 0 0 3 ............ 9 0 0 1 0 8 0 0 1 1 ............. 7 0 1 1 0 6 0 1 1 1 ............ ........... 0 6 1 1 1 ............. 0 0 0 0 10 am pretty new to Java and am getting confused with all the for loops. Right now my code can do the partition of the integer but unfortunately it is not with fixed term public class Partition { private static int[] riga; private static void printPartition(int[] p, int n) { for (int i= 0; i < n; i++) System.out.print(p[i]+" "); System.out.println(); } private static void partition(int[] p, int n, int m, int i) { if (n == 0) printPartition(p, i); else for (int k= m; k > 0; k--) { p[i]= k; partition(p, n-k, n-k, i+1); } } public static void main(String[] args) { riga = new int[6]; for(int i = 0; i<riga.length; i++){ riga[i] = 0; } partition(riga, 6, 1, 0); } } the output I get it from is like this: 1 5 1 4 1 1 3 2 1 3 1 1 1 2 3 1 2 2 1 1 2 1 2 1 2 1 1 1 what i'm actually trying to understand how to proceed is to have it with a fixed terms which would be the columns of my array. So, am stuck with trying to get a way to make it less dynamic. Any help?

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  • Subconic3.0 with winform app

    - by Saif Khan
    Can subsonic 3.0 be used with a winform app? Do I need to add any references to the system.web? If it can be done, how can I exclude certain tables in the DB? Can I use the following whih I am using for subsonic 2.0 <providers> <!--<clear/>--> <add name="TEST" type="SubSonic.SqlDataProvider, SubSonic" connectionStringName="myString" includeTableList="CustomerReference" includeProcedureList=""/> </providers>

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  • asp.net RequiredFieldValidator with custom control.

    - by Evgeny
    I have custom control with asp textbox inside. And i need to Validate by RequiredFieldValidator my custom control on CLIENT side. I added attribute to custom control class: [ValidationProperty("Text")] public class WatermarkTextBox : System.Web.UI.UserControl { } It looks like working but it always make submit to server. How can i check it only on client side?

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  • PHP string parsing

    - by tmatthews
    I am trying to parse a list of operating system instances with their unique identifiers. I am looking for a solution to parse a text string, and pass the values into two variables. The string to be parsed is as followed: "Ubuntu 9.10" {40f2324d-a6b2-44e4-90c3-0c5fa82c987d}

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  • Problem with newly built VC++ application ?

    - by rajivpradeep
    My application which is built on VC++ 2008 , when run on a freshly installed XP shows an error that asks dotnet.fx to be installed. And also i faced similar problem when i tried to run it on another xp system after i installed that, it started to run. Is there any way that i can make my application independent of all these additional installs ?

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  • XML allows for external entities; what about XHTML?

    - by xtofl
    This question about web page 'inclusion' triggered my curiosity. The XML allows you to specify a reference to an 'external' portion. Can you do the same in XHTML, then? XML example: <!ENTITY foo SYSTEM "http://www.mydomain.com/logo.gif" NDATA GIF87A> ... <SOMETHING>&foo;</SOMETHING>

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  • Profiler tool for web service

    - by Rotem
    Hi, I need a profiler that is able to measure performance of web service execition. Our application has several layers and ideally I would like to be able to dive into each web service request and see how much time was spent in each layer (server, sql server, etc...) Is there a tool that can help detect where are the bottlenecks ? Is that something that can be done using VS Team System Test Edition ?

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  • Dynamically Add iFrame to a Page?

    - by DaveDev
    I need to generate a composite page made up of other pages in our system. Is it possible for me to dynamically add iFrames to a page, each with its own src pointing to different URLs which are determined on the fly? If so, is there a preferred method to this? Otherwise I need to refactor the other pages into user controls so I can add them as needed.

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  • Deserialize JSON, sometimes value is an array, sometimes "" (blank string).

    - by karl.r
    I am trying to deserialize a field: "presenters":[{...},{...}] but some of the rows come back with only: "presenters":"" When the serializer gets to the row with that empty string I get: Error converting value "" to type 'System.Collections.Generic.List`1[DataPrototype.Model.Presenter]'. Am I right in thinking that I need a JsonConverter that will change the empty string into an empty List?

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  • Database design

    - by Hadad
    Hello, I've a system, that have two types of users (Companies and individuals).all types have a shared set of properties but they differ in another. What is the best design merge all in one table that allows null for unmatched properties, or separate them in two tables related to a basic table with a one to one relationship. Thanks.

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  • How can a property resolve its own name and type with reflection?

    - by Tim Santeford
    Is there a way for a property to access its own name and type at runtime using reflection? I want to access this info without hard coding the name or index of the property in the class. Simple Example Code: Private ReadOnly Property MyProperyName() As String Get Console.WriteLine((Get Current Property Info).Type.ToString) Console.WriteLine((Get Current Property Info).Name) Return "" End Get End Property Expected output: System.String MyPropertyName

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  • Process.Start to run exe in same folder as application is

    - by Hallgaws
    When I am running myProcess = Process.Start("something.exe") and want to start it using button it doen not find the file - i need to execute it from the same folder where application is how can i do that? Thank you. System could not find this file - but it is there . in the same folder as application. Using Visual Basic 2008 Express

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  • Is it impossible to embed Java3D in a way that I don't need to install it?

    - by Kyle
    I'm running a big application and a small part of it includes Java 3D, the problem is many users need to use the code, but it isn't practical for everyone to install Java 3D just to run the application if they aren't even going to use that section of the application. Is it possible through compiling an extra jar, or changing some paths, to include Java 3D in a project without installing it on a system? Or perhaps to manually include any dlls?

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  • How to get latest files in C#

    - by Newbie
    I have some files with same name but with different dates. Basically we are finding the files with most recent dates The file patterns are <FileNames><YYYYMMDD><FileExtension> e.g. test_20100506.xls indicates <FileNames> = test_ <YYYYMMDD> = 20100506 <FileExtension> = .xls Now in the source folder, the files are standardization_20100503.xls, standardization_20100504.xls, standardization_20100305.xls, replacement_20100505.xls As can be seen that, standardization_.xls are 3 in numbers but replacement_.xls is only 1. The output will be a list of file names whose content will be standardization_20100504.xls and replacement_20100505.xls Because among all the standardization_.xls is the most recent one and replacement_.xls is also the same. I have tried with my own logic but somehow failed. My idea is as under private static void GetLatestFiles(ref List<FileInfo> validFiles) { List<FileInfo> validFilesTemp = new List<FileInfo>(); for (int i = 0; i < validFiles.Count; i++) { for (int j = i+1; j < validFiles.Count; j++) { string getFileTextX = ExtractText(validFiles[i].Name); string getFileTextY = ExtractText(validFiles[j].Name); if (getFileTextX == getFileTextY) { int getFileDatesX = Convert.ToInt32(ExtractNumbers(validFiles[i].Name)); int getFileDatesY = Convert.ToInt32(ExtractNumbers(validFiles[j].Name)); if (getFileDatesX > getFileDatesY) { validFilesTemp.Add(validFiles[i]); } else { validFilesTemp.Add(validFiles[j]); } } } } validFiles.Clear(); validFiles = validFilesTemp; } The ExtractNumbers is: public static string ExtractNumbers(string expr) { return string.Join(null, System.Text.RegularExpressions.Regex.Split(expr, "[^\\d]")); } and the ExtractText is public static string ExtractText(string expr) { return string.Join(null, System.Text.RegularExpressions.Regex.Split(expr, "[\\d]")); } I am using c#3.0 and framework 3.5 Help needed .. it's very urgent Thanks .

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  • How to make the swf load after all the images and text loaded?

    - by Jay
    My CMS system allow people to post some swf on the homepage, however, sometime there is video which is included in swf, not two files swf+flv. When the swf video load, it near used up the bandwidth and so the page seems not response for a while ... Can I use jQuery to control all the swf in a page that they load after the others done or maybe just load it after 3s or what? Thanks!!

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  • Calling Windows commands (e.g. del) from a GNU makefile

    - by Tom
    It does not appear to be possible to call Windows system commands (e.g. del, move, etc) using GNU Make. When the following rule is run, an error is reported del: command not found: clean: del *.o This is presumably because there is no such execuatable as "del". I've also tried running it as an option to cmd but with this only seems to open a new prompt: clean: cmd /C del *.o I'm using GNU Make 3.79.1 that is bundled as part of MSys.

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