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  • How do I write an Oracle SQL query for this tricky question?

    - by atrueguy
    Here is the table data with the column name as Ships. +--------------+ Ships | +--------------+ Duke of north | ---------------+ Prince of Wales| ---------------+ Baltic | ---------------+ Replace all characters between the first and the last spaces (excluding these spaces) by symbols of an asterisk (*). The number of asterisks must be equal to number of replaced characters.

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  • jquery and confirmation link button problem

    - by senzacionale
    http://javiercrespoalvez.com/2008/12/aspnet-confirmation-button-using-jquery.html I am using this aspx control but i have problem in updatepanel on aspx confirmation link button. First time i click on link button then i click "yes" and code is executed. Next time i click on any link button code is alwas executed before i click "yes" or "no". I think problem is in jquery nad updatepane...

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  • Virtually shifting an array

    - by kmukund87
    Hi, I am using C#. I have an array of size 10. I want to pass it to a function, but only from the second element. In C, this is how I would implement it myfunc( myarray + 1 ) Effectively I am virtually shifting the array / deleting the first element. How do I implement this in C# ?

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  • Java: Difference between PrintStream and PrintWriter

    - by Martijn Courteaux
    Hi, What is the difference between PrintStream and PrintWriter? They have much methods in common. I always mix up this classes because of that reason. And I think we can use them for exactly the same. But there has to be a difference. Otherwise there was only one class. I first searched on StackOverflow, but not yet this question. Thanks

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  • [iPhone app] Detecting which key has been pressed in UITextField

    - by Dough
    Hi, I have an UITextField object in my view and want to launch a method when user press backspace button and textField is empty. First I have to do is to create a cursor storing text length, so when cursor changes from 1 to 0 there is nothing to do. The only way to launch the method is when text length is 0 - press backspace - remain to 0. How to catch the event of pressing the backspace key in my UITextField ? Thanks in advance !

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  • How to represent "{{" in a django template?

    - by rxin
    I'm trying to output in bibtex format in Django and the template looks like this: @{{ pubentry.type }{, author = {{% for author in pubentry.authors.all %}{{ author.first_name }} {{ author.middle_name }} {{ author.last_name }}{% if not forloop.last %} and {% endif %} {% endfor %}}, title = {{{ pubentry.title }}}, journal = {{{ pubentry.journal }}} } The problem is with the "{{{" or "{{%". One way to go around the problem is to add a space after the first "{", but that kind of tamper the format. What's the right way to escape { in Django templates?

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  • Attached property and style missing on re adding the user control

    - by RodD
    Hey people I've got an issue with a WPF project I'm working on, I have an items control which I add to and remove from certain user controls, these contols styles and attached properties are there on first view but when I remove and add them again the user control apears on screen but is detached from the items control attached properties and styles. Is this behaviour common and if so what is the best way to handle it? Thanks in advance

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  • Shortening large CSV on debian

    - by Unkwntech
    I have a very large CSV file and I need to write an app that will parse it but using the 6GB file to test against is painful, is there a simple way to extract the first hundred or two lines without having to load the entire file into memory? The file resides on a Debian server.

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  • How do I make a page aware that the viewer is logged in or not?

    - by Joann
    I am building a membership site... I just got thru the login page and I can now login and logout. However that alone doesn't protect all my pages in the root.. How do I go about this? I'd like to set it up like so when the viewer isn't log-in, the page that's being opened would say "Log in first blah3x"... Any help pls??? :-(

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  • How to delete from table if count is greater than 20

    - by joseph
    Hi, I have a mysql table that I need to only contain 20 newest records before adding additional records. New rows are added daily so I would like it first delete any records that are greater than the 20 allowed starting with the earliest. The table contains an auto increment "id" column so I can easily determine which is the earliest records. Thanks for any help.

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  • How can I detect if

    - by Suzie
    Is there a way to detect just 2 distinct touches? I just want to track the touches for my two buttons, which is a sprite, but whenever I have another touch other than my first two touches, it affects my touch with my button. Is there a way to get rid of that third touch? I wish you could help me with this problem.Thank You!

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  • How does MEF affect your application load times?

    - by Román
    Hi all I'm currently investigating MEF to know the feasibility of some kind of plugin subsystem for a software we are writing at my company. One of the first questions that came to my mind is to know the influence of MEF components in the application load time. Moreover, if that's something of significant weight, is it possible to load those components completely at runtime? Thanks in advance Roman

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  • CheckBox in silverlight

    - by Malcolm
    I have 4 check boxes and by default they are checked and depending on these check boxes i have to show a value some where else. for ex: suppose for first checkbox i say 1, second 2 ,third 3 and fourth 4 so initially i store this value in a string name dg="1,2,3,4" if the user unchecks the second check box the value in my dg must be showing : dg="1,3,4" And again if the user checks the second chekbox , my dg must store the value : dg="1,2,3,4" How to achieve this? TX in advance

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  • Listview dsplaying Issue

    - by raj
    I am using LinearLayout to display ListView Adding Button at the Top. Then adding Listview bellow the button. Problem is that Listview take the entire screen at the time of scroll. At the time of scroll the first cell of the ListView went in the Background of the button. Is there any solution to strict the List below the button?

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  • Java java.util.ConcurrentModificationException error

    - by vijay
    Hi all, please can anybody help me solve this problem last so many days I could not able to solve this error. I tried using synchronized method and other ways but did not work so please help me Error java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(Unknown Source) at java.util.AbstractList$Itr.remove(Unknown Source) at JCA.startAnalysis(JCA.java:103) at PrgMain2.doPost(PrgMain2.java:235) Code public synchronized void startAnalysis() { //set Starting centroid positions - Start of Step 1 setInitialCentroids(); Iterator<DataPoint> n = mDataPoints.iterator(); //assign DataPoint to clusters loop1: while (true) { for (Cluster c : clusters) { c.addDataPoint(n.next()); if (!n.hasNext()) break loop1; } } //calculate E for all the clusters calcSWCSS(); //recalculate Cluster centroids - Start of Step 2 for (Cluster c : clusters) { c.getCentroid().calcCentroid(); } //recalculate E for all the clusters calcSWCSS(); // List copy = new ArrayList(originalList); //synchronized (c) { for (int i = 0; i < miter; i++) { //enter the loop for cluster 1 for (Cluster c : clusters) { for (Iterator<DataPoint> k = c.getDataPoints().iterator(); k.hasNext(); ) { // synchronized (k) { DataPoint dp = k.next(); System.out.println("Value of DP" +dp); //pick the first element of the first cluster //get the current Euclidean distance double tempEuDt = dp.getCurrentEuDt(); Cluster tempCluster = null; boolean matchFoundFlag = false; //call testEuclidean distance for all clusters for (Cluster d : clusters) { //if testEuclidean < currentEuclidean then if (tempEuDt > dp.testEuclideanDistance(d.getCentroid())) { tempEuDt = dp.testEuclideanDistance(d.getCentroid()); tempCluster = d; matchFoundFlag = true; } //if statement - Check whether the Last EuDt is > Present EuDt } //for variable 'd' - Looping between different Clusters for matching a Data Point. //add DataPoint to the cluster and calcSWCSS if (matchFoundFlag) { tempCluster.addDataPoint(dp); //k.notify(); // if(k.hasNext()) k.remove(); for (Cluster d : clusters) { d.getCentroid().calcCentroid(); } //for variable 'd' - Recalculating centroids for all Clusters calcSWCSS(); } //if statement - A Data Point is eligible for transfer between Clusters. // }// syn } //for variable 'k' - Looping through all Data Points of the current Cluster. }//for variable 'c' - Looping through all the Clusters. }//for variable 'i' - Number of iterations. // syn }

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  • how to read rows?

    - by lego69
    I'm trying to read first row from the file > source ./rank file using this script set line = ($<) but when I enter echo $line I receive nothing, how can I change it? thanks in advance

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  • issue of JSTL forEach iterate from arrayList

    - by Mickey
    In my code, I have used ArrayList which stores the number format like '$0.00 to $1,000,000.00' in each index of array list. while iterate in JSP through tag, its values are printing like $0.00 to $1 as a first string, 000 as a second string and 000.00 as a thrid string. but it has to print like '$0.00 to $1,000,000.00'. what will be the problem is? Thanks in advance

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  • Having an issue while trying to implement In-App Purchase

    - by Raymond
    This is my first time to implement In-App purchase and I am using the tutorial located here: Ray Wenderlich Now I am sure this is something simple, but I am having issues figuring out, so I figured I would ask all of the gurus out here. The compiler is saying that _products is Use of undeclared identifier - (void)productPurchased:(NSNotification *)notification { NSString * productIdentifier = notification.object; [_products enumerateObjectsUsingBlock:^(SKProduct * product, NSUInteger idx, BOOL *stop) { if ([product.productIdentifier isEqualToString:productIdentifier]) { *stop = YES; } }]; }

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  • mod_rewrite help can't get it to work

    - by Maenny
    Hi Folks, This is the first time I use mod_rewrite and I can't get it to work. I have a website with bands and their IDs. What I want: a URL /bands/My_Band_id13/ should redirect to /bands/index.php?bandname=My_Band&bandID=13 What I have: RewriteRule ^/bands/(.*)_id(.*)/$ /bands/index.php?bandname=$1&bandID=$2 What am I doing wrong? THx, Maenny

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