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Articles indexed Friday April 23 2010

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  • how to use an array list ?

    - by soad El-hayek
    salam 3lekom i need to know if i store my data in an Araaylist and i need to get the value that i've stroed in it for example : if i've an array list like this ArrayList A = new ArrayList(); A = {"Soad", "mahran"}; and i want to get each String lonly how can i do it ? I've tried to do it like this package arraylist; import java.util.ArrayList; public class Main { public static void main(String[] args) { ArrayList S = new ArrayList(); String A = "soad "; S.add(A); S.add("A"); String F = S.toString(); System.out.println(F); String [] W = F.split(","); for(int i=0 ; i<W.length ; i++) { System.out.println(W[i]); } } }

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  • C# SQL Data Adapter System.Data.StrongTypingException

    - by René
    I get my data from SQL to Dataset with Fill. It's just one table with two columns (CategoryId (int) and CategoryName (varchar)). When I look at my dataset after fill method, CategoryId Columns seems to be correct. But in the CategoryName I have a *System.Data.StrongTypingExceptio*n. What could that mean? Any Ideas?

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  • Using variables for colors in table cells

    - by Mark Robinson
    Using the variables extension, I want to change the background color of a cell in a table. So far I've done this: {{#vardefine:green|<span style="background:Green; color:White">text</span>}} The problem is that, when I add {{#var:green}} to the cell, only the text itself has a green background. Ideally, I want the whole cell to have a background color, like it does if I use this: | bgcolor="#ff00ff" | test or this | style="background:silver" |silver in the cell. Does anyone know how to solve this?

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  • I expect to see in the browswer "http://path/some_page.html" but instead it identifies with "http:/

    - by indiehacker
    I am developing with app engine SDK. I have a feeling this is much too basic a question so apologies ahead of time... A simple submit button doesnt work instead of just showing an alert box as expected it continues on afterwards and redirects me to the latest http-request, and I think this is because I dont understand how to tell the browser to recognize the proper URLs. Why does my browser say I am at the most recent http-request http://localhost:8080/putProjectInDB rather than the somepage.html that was actually served to the browser that I am currently looking at? How can I get the browser to recognize and show in its url spot the normal expected http://somepage.html ? Just in case, here are details of the specific problem which you might be able to ignore for answering the question: This hasnt been mattered for me until I just wanted to put into my .html a simple button that changes some stuff of the page without needing the server. The below code after displaying the alert box redirects me to the last server request http://localhost:8080/putProjectInDB instead of just staying in the same html page. in header: function MyFormCommands() { alert('Some Text'); } in body: <form onSubmit="MyFormCommands()" ><input type=submit ></form >

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  • Writing to a specific line of a file.

    - by helpmeh
    I have a .dat file with data like this in "James","Project5","15/05/2010","3" "Matt","Project1","01/05/2010","5" "Ellie","Project5","24/04/2010","1" "Ellie","Project2","10/05/2010","3" "Matt","Project3","03/05/2010","4" It gets written in with thise code. Private Sub Command2_Click() Open jobs For Append As #1 Write #1, Combo1, Combo3, Combo2, Text3 Close #1 End Sub I instead would like to write it to the file so that if a persons name is already in the file then it would just put the data in the file, under their that is already there but without the name. I can't figure out how to do this but this is what I would like it to end up like. "James","Project5","15/05/2010","3" "Matt","Project1","01/05/2010","5" "Ellie","Project5","24/04/2010","1" "Project2","10/05/2010","3" "Matt","Project3","03/05/2010","4" Any help would be fantastic!

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  • Can you have an extension method on a type instead of on an instance of a type?

    - by SLC
    I can have an extension method like this: DateTime d = new DateTime(); d = d.GetRandomDate(); GetRandomDate is my extension method. However the above doesn't make much sense. What would be better is: DateTime d = DateTime.GetRandomDate(); However, I don't know how to do this. An extension method created as: public static DateTime GetRandomDate(this System.DateTime dt) will only add the GetRandomDate() in the first example above, not the second one. Is there a way to achieve the desired behaviour?

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  • Rails image_tag prefix to a static content

    - by pepernik
    I would like to server all static content from a different domain like static.mydomain.com. Is there an option every image_tag, javascript_include_tag and stylesheet_link_tag would automatically add a prefix to that static domain? Example: image_tag '/images/img1.png' would generate http://static.mydomain.com/images/img1.png Thx10x.

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  • Editing a remote file on-the-fly with PHP

    - by user275074
    Hi, I have a requirement to edit a remote text file on-the-fly, the content of which currently stands at ~1Mb. I have tried a couple of approaches and both seem to be clunky or hog memory which I can't rely on. Thinking out logically what I'm trying to achieve is: FTP to a remote server. Download a copy of the file for backup purposes and store it somewhere locally. Open the remote file and add the necessary lines required. Remove lines from the remote file as per an array of un-required data generated from the local server. Is this possible? I've managed to code steps 1 and 2 but I'm having difficult with 3 and 4. The way I'm doing it now is to use fgets and return the whole string. Really, I don't want to do this as it involves manipulating and re-generating the whole string (and it's large) and then re-inserting it in between two markers in the remote file. Is there no way of manipulating the lines of text in the file on-the-fly?

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  • Scala and HttpClient: How do I resolve this error?

    - by Benjamin Metz
    I'm using scala with Apache HttpClient, and working through examples. I'm getting the following error: /Users/benjaminmetz/IdeaProjects/JakartaCapOne/src/JakExamp.scala Error:Error:line (16)error: overloaded method value execute with alternatives (org.apache.http.HttpHost,org.apache.http.HttpRequest)org.apache.http.HttpResponse <and> (org.apache.http.client.methods.HttpUriRequest,org.apache.http.protocol.HttpContext)org.apache.http.HttpResponse cannot be applied to (org.apache.http.client.methods.HttpGet,org.apache.http.client.ResponseHandler[String]) val responseBody = httpclient.execute(httpget, responseHandler) Here is the code with the error and line in question highlighted: import org.apache.http.client.ResponseHandler import org.apache.http.client.HttpClient import org.apache.http.client.methods.HttpGet import org.apache.http.impl.client.BasicResponseHandler import org.apache.http.impl.client.DefaultHttpClient object JakExamp { def main(args : Array[String]) : Unit = { val httpclient: HttpClient = new DefaultHttpClient val httpget: HttpGet = new HttpGet("www.google.com") println("executing request..." + httpget.getURI) val responseHandler: ResponseHandler[String] = new BasicResponseHandler val responseBody = httpclient.execute(httpget, responseHandler) // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ println(responseBody) client.getConnectionManager.shutdown } } I can successfully run the example in java...

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  • Copy a Table's data from a Stored Procedure

    - by Niike2
    I am learning how to use SQL and Stored Procedures. I know the syntax is incorrect: Copy data from one table into another table on another Database with a Stored Procedure. The problem is I don't know what table or what database to copy to. I want it to use parameters and not specify the columns specifically. I have 2 Databases (Master_db and Master_copy) and the same table structure on each DB. I want to quickly select a table in Master_db and copy that table's data into Master_copy table with same name. I have come up with something like this: USE Master_DB CREATE PROCEDURE TransferData DEFINE @tableFrom, @tableTo, @databaseTo; INSERT INTO @databaseTo.dbo.@databaseTo SELECT * FROM Master_DB.dbo.@tableFrom GO;

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  • ado.net data entity problem

    - by ognjenb
    I have this error Cannot implicitly convert type 'System.Linq.IQueryable' to 'Mvc.Models.engineer'. An explicit conversion exists (are you missing a cast?) after write this code engineer Ing = new engineer(); Ing = from j in testPersons.ibekoengineer select j.Name; What is wrong?

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  • Multiple Jquery Cycle Slideshows with their own Navs

    - by daveredfern
    Hello, I am using the Jquery cycle plugin (http://malsup.com/jquery/cycle/) on a blog listing page. There are multiple slideshows which work fine but I'd like each on the have their own previous and next. Because these are blog posts it is difficult to sign unique IDs or classes. I currently have:- $('.article .gallery').cycle({ next: '.viewmore .left', prev: '.viewmore .right', timeout:0 }); I have tried the following but doesn't work. It gives you a better idea of what I am looking for:- $('.article .gallery').cycle({ next: $(this).next('.viewmore .left'), prev: $(this).next('.viewmore .right'), timeout:0 }); Can anyone help me? Thanks in advance. Dave.

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  • Problems with matching emails with regex

    - by Gandalf StormCrow
    Hello, I'm trying to match an email address here is what I've come up with so far : String text = "[email protected]"; String regex = "(\\w+)@{1}(\\w+){2,}\\.{1}\\w{2,4}"; This however works with following cases : [email protected] [email protected] [email protected] So it matches any alphanumeric character repeated once or more that comes before one @ followed by any alphanumeric character repeated at least two times(which is minimal characters for any domain name) followed by one .(dot) and followed by any alphanumeric character repeated at least 2 times and at most 4 times(because there are domains such as .us or .mobi). This expression however does not work with emails such as : [email protected] [email protected] [email protected] [email protected] etc as many subdomains or [email protected] [email protected] [email protected] [email protected] I've just started to learn regex and I found interesting to try to solve problems such as these by using regex .. not partially but for each case, any help would be much appriciated. Thank you

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  • how to perform click to the output of ActionLink by jQuery or javascript?

    - by user324003
    <%= Ajax.ActionLink("Edit", "Update", "Home", new { id = item.mID }, new AjaxOptions { OnBegin = "function(){ $('#edit" + item.mID + "').show();}", HttpMethod = "get", UpdateTargetId = "edit" + item.mID })%> The above code generates the html source code. when user click the link, it works well. But there're so many links there, I must click them one by one. Is there any method to click once, all of them excutes? I tried the method: $("a.buttonID").click() and modified the above code: <%= Ajax.ActionLink("Edit", "Update", "Home", new { id = item.mID }, new AjaxOptions { OnBegin = "function(){ $('#edit" + item.mID + "').show();}", HttpMethod = "get", UpdateTargetId = "edit" + item.mID } new{@class="buttonID"})%> But it doesn't work. Because it only excutes the onclick event of a tag, the href attribute doesn't work.

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  • Installing flex on Mac Parallels

    - by Ali Syed
    Hello folks, I am trying to install Flex 3 on my Windows 7 Virtual machine (parallels desktop) on my Mac Pro. The problem seems to be some sort of conflict between the copy of Flex 3 Builder installed on Mac OS X. The installer tries to install Flex in x:/Program Files/Adobe/Flex Builder 3/ but since Parallels Desktop connects all directories, there resides the Flex Builder 3 installation of MAC. I get this error Log: !SESSION 2010-04-22 16:09:23.031 ----------------------------------------------- eclipse.buildId=unknown java.version=1.5.0_11 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_DE Framework arguments: -application org.eclipse.update.core.standaloneUpdate -command install -from file:\C:\Program Files\Adobe\Flex Builder 3 Windose\com.adobe.flexbuilder.update.site/ -featureId com.adobe.flexbuilder.feature.standalone -version 3.0.214193 Command-line arguments: -application org.eclipse.update.core.standaloneUpdate -command install -from file:\C:\Program Files\Adobe\Flex Builder 3 Windose\com.adobe.flexbuilder.update.site/ -featureId com.adobe.flexbuilder.feature.standalone -version 3.0.214193 !ENTRY org.eclipse.update.core 4 0 2010-04-22 16:09:29.187 !MESSAGE Cannot install featurecom.adobe.flexbuilder.feature.standalone 3.0.214193

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  • JSP: EL expression is not evaluated

    - by James
    I have a JSP page running on Tomcat 5.5. I have the following code: <c:forEach var="i" begin="1" end="10" step="1"> <c:out value="${i}" /> <br /> </c:forEach> The output I am getting is: ${i} ${i} ${i} ${i} ${i} ${i} ${i} ${i} ${i} ${i} I cant work out why the forEach loop is working but the output is not working. Any help any one could give would be great.

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  • Using Linq to group a list of objects into a new grouped list of list of objects

    - by Simon G
    Hi, I don't know if this is possible in Linq but here goes... I have an object: public class User { public int UserID { get; set; } public string UserName { get; set; } public int GroupID { get; set; } } I return a list that may look like the following: List<User> userList = new List<User>(); userList.Add( new User { UserID = 1, UserName = "UserOne", GroupID = 1 } ); userList.Add( new User { UserID = 2, UserName = "UserTwo", GroupID = 1 } ); userList.Add( new User { UserID = 3, UserName = "UserThree", GroupID = 2 } ); userList.Add( new User { UserID = 4, UserName = "UserFour", GroupID = 1 } ); userList.Add( new User { UserID = 5, UserName = "UserFive", GroupID = 3 } ); userList.Add( new User { UserID = 6, UserName = "UserSix", GroupID = 3 } ); I want to be able to run a Linq query on the above list that groups all the users by GroupID. So the out pub will be a list of user lists that contains user (if that makes sense?). So the out put would be something like: GroupedUserList UserList UserID = 1, UserName = "UserOne", GroupID = 1 UserID = 2, UserName = "UserTwo", GroupID = 1 UserID = 4, UserName = "UserFour", GroupID = 1 UserList UserID = 3, UserName = "UserThree", GroupID = 2 UserList UserID = 5, UserName = "UserFive", GroupID = 3 UserID = 6, UserName = "UserSix", GroupID = 3 I've tried using the groupby linq clause but this seems to return a list of keys and its not grouped by correctly: var groupedCustomerList = userList.GroupBy( u => u.GroupID ).ToList(); Any help would be much appreciated. Thanks

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  • Quickest algorithm for finding sets with high intersection

    - by conradlee
    I have a large number of user IDs (integers), potentially millions. These users all belong to various groups (sets of integers), such that there are on the order of 10 million groups. To simplify my example and get to the essence of it, let's assume that all groups contain 20 user IDs (i.e., all integer sets have a cardinality of 100). I want to find all pairs of integer sets that have an intersection of 15 or greater. Should I compare every pair of sets? (If I keep a data structure that maps userIDs to set membership, this would not be necessary.) What is the quickest way to do this? That is, what should my underlying data structure be for representing the integer sets? Sorted sets, unsorted---can hashing somehow help? And what algorithm should I use to compute set intersection)? I prefer answers that relate C/C++ (especially STL), but also any more general, algorithmic insights are welcome. Update Also, note that I will be running this in parallel in a shared memory environment, so ideas that cleanly extend to a parallel solution are preferred.

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