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  • perl imagemagick, rotation ruins crop

    - by Hermann Ingjaldsson
    Im using perl's imagemagick. i can rotate a picture, and i can crop a picture. but after rotating a picture, cropping is all messed up. it's like theres some underlying data in the picture that is damaging the crop operation. how can i crop a picture after having rotated it in imagemagick?

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  • Java - Collections.sort() performance

    - by msr
    Hello, Im using Collections.sort() to sort a LinkedList whose elements implements Comparable interface, so they are sorted in a natural order. In the javadoc documentation its said this method uses mergesort algorithm wich has n*log(n) performance. My question is if there is a more efficient algorithm to sort my LinkedList? The size of that list could be very high and sort will be also very frequent. Thanks!

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  • help optimize sql query

    - by msony
    I have tracking table tbl_track with id, session_id, created_date fields I need count unique session_id for one day here what i got: select count(0) from ( select distinct session_id from tbl_track where created_date between getdate()-1 and getdate() group by session_id )tbl im feeling that it could be better solution for it

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  • Keeping a certain row or column in an HTML table fixed

    - by WarDoGG
    I have huge amounts of data populating an HTML <table> having more than 200 rows and 200 columns. However, when i scroll the page horizontally or vertically to view the data, the header columns (like th for instance) go beyond the page. How can i scroll through the table and still keep the top row and leftmost column fixed so that i will always know what data im seeing.

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  • Using pointers in PHP.

    - by Babiker
    I ask this question because i learned that in programming and designing, you must have a good reason for decisions. I am php learner and i am at a crossroad here, i am using simple incrementation to try to get what im askin across. I am certainly not here to start a debate about the pros/cons of pointers but when it comes to php, which is the better programming practice: function increment(&$param) { $param++; } Or function increment($param){ return $param++; } $param = increment($param);

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  • PHP Application check name is unique if not append

    - by user270797
    My application requires the user to enter their business name, which the application will automatically create into a unique identifier to be used in URLs, ie "Bob's Cafe" will become "bobs-cafe" But if there are duplicate names I would like the application to add a number so if there is already a "bobs-cafe" we will use "bobs-cafe-1" and likewise if there is already a "bobs-cafe-1" we will use "bobs-cafe-2" Ive used explode and also looked at a regular expressions but I dont know the best way to approach this. Im stuck in being able to grab the number and incrementing it and returning the string

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  • XML security in world wide web

    - by nikky
    Hi, Im a newbie in XML and i have some questions Can XML be used in stead of normal database (store data in a tuple and column) in website? XML is built to share information easier (from my understanding) such as can share cross platform and in different language used so Is it secure to store secure data in XML? thank you so much

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  • site not working with url www

    - by jarus
    hello im having problem with my site when i type http://mysite.com it works fine but when i type http://www.mysite.com it displays page cannot be found , what is the problem i couldnot find , i tried .htaccess redirection also RewriteEngine On RewriteCond %{HTTP_HOST} ^www.mysite.com [nc] RewriteRule (.*) mysite.com/$1 [R=301,L] it is not working any help will be appreciated

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  • Get Unique Results in a query.

    - by Bathan
    Hi guys! Im sure this will be pretty simple for a t-sql guru. I have the following result from a table idMain IdSecondary TextValue 1,1,text1 1,2,text2 2,5,text3 2,6,text5 And I want to obtain the first occurence of the idMain only. THe result should be like this. idMain,idSecondary,TextValue 1,1,text1 2,5,text3 How can I achieve this?

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  • How to Lookup For something main VBA

    - by gorPweN
    Hi, I wanna know how to Lookup For many number in a column A corresponding to a name in Column B By coding in VBA..And Write it in column C??? Thanks in advance..Im new in this... Exemple A B C 200-333 Jack 200-345 Lea 200-346 Fresh 200-347 Tide Jack 200-323 Tide Lea Fresh 200-344 Tide

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  • asp.net mvc got 405 error on HTTP DELETE request?

    - by DucDigital
    Hi everyone... Im trying to pass the DELETE to a url in asp.net mvc using Javascript but however i always got "405 Method not allow" return. is there anyway to make this work? FYI: i've put the [AcceptVerb(HttpVerb.Delete)] attribute on my controller. DELETE /post/delete/8 this is the request

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  • Making an application draw a surface other than the desktop

    - by Cloud
    Hello Im looking for a way to get an application, any application, that has been started using ShellExecuteEx or CreateProcess to draw on an offscreen surface such as a bitmap instead of drawing on the desktop, this should include any dialogs the (Open, Save, messages) that the application invokes. I am familiar with the Windows API, GDI and device context, any suggestions would be much appreciated.

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  • How to create-edit-remove excel files?

    - by Giuseppe
    i am doing a project that has some simple values(login,password,name,age). I was searching on the internet how to create an excel file on Visual C++, and i cant undestand it . I just want the simple way, i just want to see on my excel files 2 colums one having some login codes of my program and on the other the passwords. My programing level its not really high and im not an english speaker, so id like you guys to explain a bit or give me something simple. Thanks for your time

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  • Passing array into constructor to use on JList

    - by OVERTONE
    I know the title sound confusing and thats because it is. its a bit long so try too stay with me. this is the layout i have my code designed variables constructor methods. im trying too fill a Jlist full on names. i want too get those names using a method. so here goes. in my variables i have my JList. its called contactNames; i also have an array which stores 5 strings which are the contacts names; heres the code for that anyway String contact1; String contact2; String contact3; String contact4; String contact5; String[] contactListNames; JList contactList; simple enough. then in my constructor i have the Jlist defined to fill itself with the contents of the array fillContactList(); JList contactList = new JList(contactListNames); that method fillContactList() is coming up shortly. notice i dont have the array defined in the constructor. so heres my first question. can i do that? define the array to contain something in te constructor rather than filling it fromt the array. now heres where stuff gets balls up. ive created three different methods all of which havent worked. basically im trying to fill the array with all of them. this is the simplest one. it doesnt set the Jlist, it doesnt do anything compilicated. all it trys too do is fill the array one bit at a time public void fillContactList() { for(int i = 0;i<3;i++) { try { String contact; System.out.println(" please fill the list at index "+ i); Scanner in = new Scanner(System.in); contact = in.next(); contactListNames[i] = contact; in.nextLine(); } catch(Exception e) { e.printStackTrace(); } } } unfortunately this doesnt qwork. i get the print out to fill it at index 0; i input something and i get a nice big stack trace starting at contactListNames[i] = contact; so my two questions in short are how i define an array in a constructor. and why cant i fill the array from that method. ************************888 **************************888 stack trace by request please fill the list at index 0 overtone java.lang.NullPointerException please fill the list at index 1 at project.AdminMessages.fillContactList(AdminMessages.java:408) at project.AdminMessages.<init>(AdminMessages.java:88) at project.AdminUser.createAdminMessages(AdminUser.java:32) at project.AdminUser.<init>(AdminUser.java:18) at project.AdminUser.main(AdminUser.java:47) it was a null poiinter exception

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  • Help on understanding JS

    - by Anonymous
    I have thos piece of code: Math&&Math.random?Math.floor(Math.random()*10000000000000):Date.getTime(); And as far as i know && is logic operator for AND, so im trying to convert this into PHP and this is where i got: intval(floor(time()/10800000)%10+(rand()?floor(rand()*10000000000000):time())) The problem is that i can't understand the first part Math&& Can anyone help with this one cause i always get negative result, when i should get positive (probably the logic rand-time is not working in my php example)

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