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• Extracting a given number of the highest values in a List

  - by James P.

  I'm seeking to display a fixed number of items on a web page according to their respective weight (represented by an Integer). The List where these items are found can be of virtually any size. The first solution that comes to mind is to do a Collections.sort() and to get the items one by one by going through the List. Is there a more elegant solution though that could be used to prepare, say, the top eight items?

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• Read files via php

  - by Koka

  You all know about restrictions that exist in shared environment, so with that in mind, please suggest me a php function or something with the help of which I could stream my videos and other files. I have a lot of videos on the server, unlimited bandwidth and disk space, but I am limited in ram and cpu.

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• hi all here is another problem of Ajax , strange but ...

  - by Dumbledore of flash

  when i put ajax on my code I send a group of variable via post but when i received the data it is in a obj.responseText ie TEXT format. say i have two files "form.php" and "index.php" ajax is implemented in form.php while index.php returns the text. but my problem is index.php also generates a variable named "tarriff_count" i want to catch systematically and separately this variable, Is there any systematic way to catch variable.also keep in mind "obj.responseText" is very complicated to get a variable from "preg_match" ?

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• Multiple OR Clauses in MySQL

  - by Grant

  I'm trying to grab content where id = 3 OR id = 9 OR id = 100... Keep in mind, I can have a few hundred of these ids. What is the most efficient way to write my query? $sql = "SELECT name FROM artists WHERE (id=3 OR id=9 OR .... id-100)"

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• PHP Object Oriented - Best way to implement multiple user roles

  - by Sabeen Malik

  I have three types of users: A, B, C .. Hence a user base class and then we have 3 derived classes. However it is possible for a user to be of 2 types at the same time. How would we go about dealing with this in a decent fashion, keeping in mind the type(s) of the user will define the kind of access they have in an application.

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• writing to an ioport resulting in segfaults...

  - by Sniperchild

  I'm writing for an atmel at91sam9260 arm 9 cored single board computer [glomation gesbc9260] Using request_mem_region(0xFFFFFC00,0x100,"name"); //port range runs from fc00 to fcff that works fine and shows up in /proc/iomem then i try to write to the last bit of the port at fc20 with writel(0x1, 0xFFFFFC20); and i segfault...specifically "unable to handle kernel paging request at virtual address fffffc20. I'm of the mind that i'm not allocating the right memory space... any helpful insight would be great...

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• What license do I need to use gSOAP in a commercial product?

  - by Lawrence Johnston

  I'd like to use gSOAP in a product which will be distributed commercially. The use I have in mind is what I suspect is a pretty typical workflow—generating a header using wsdl2h, consuming the header with soapcpp2, and then calling the functions generated in the stub in my code. I'm not 100 percent sure which license(s) I need to use to be able to do this. Has anybody here already gone through this and figured out the solution?

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• .net library for extracting block attributes out of autocad drawings

  - by Coen

  Hi all, I'm looking for a .net library that will enable me to extract block attributes out of a autocad file. I don't mind paying for a developers licence but I should be able to freely redistribute the library itself without additional costs. Is there a lib that suits my needs? greetings, Coen

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• How to find a path to a native library loaded using DllImport in .NET?

  - by Stefan

  Is there a way to find the path to a native dll loaded with DllImport? The only thing that comes to my mind is a series of calls: LoadLibrary(), GetModuleFileName() and FreeLibrary().

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• Dynamically loading content (ajax) other than using page methods

  - by Vince

  I'm working on a site at the moment that loads all of its browser popups by using page methods. This approach works but it's starting to get messy. I also view page methods as ways to perform small tasks, username availability comes to mind. What other options are there besides page methods and the update panel?

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• How to get the measures of an object from far away?

  - by Luis Armando

  I am working on an App that intends to give an accurate measure of any object (building, desk, chair, people, etc.) Using the camera (either phone's or laptop) but I'm unsure as to how to do this without using a lot of resources, would someone mind giving me some options? I'm looking for a lightweight one that can be quickly processed by the computer/phone to give back the measures.

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• HTML - Which element to output text?

  - by Oliver Weiler

  I'm implementing a little chat application where I receive messages from a server, which I would like to display to a user. As I'm more of a backend guy, and lacking experience in frontend development, I don't know which element would be suited best to output the text. Two options come to my mind: Using a plain div Using a textarea (as far as I understand, this is intended to be used for input). (Would also be nice if I could somehow fade in the text using JQuery).

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• What are the differences between these?

  - by Amit Ranjan

  What are the differences between the two queries? SELECT CountryMaster.Id FROM Districts INNER JOIN CountryMaster ON Districts.CountryId = CountryMaster.Id SELECT CountryMaster.Id FROM CountryMaster INNER JOIN Districts ON Districts.CountryId = CountryMaster.Id Please mind the i) Table positions and second ii) On Fields As I know, output will be same. But I want to know, is there any drastic effects of the same if I neglect positions of tables and columns in complex queries or tables having tons of data like thousands and lakhs of rows...

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• Creation of website

  - by Neelu

  Dear Friends What all things we should keep in mind for creating website? What are the standards everyone follows? I want to know in & out of the websites. I want to create by my own. Please guide me some useful steps. Thanks in advance

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• Registry key editing vb6 startup

  - by Francesco D.

  Is it possible that someone here could explain how to use this code. Please keep in mind i am a complete amateur, so simplifications may be needed. Private Const cPGM = "C:\VB Forum\startup\Example.exe" Dim oShell As IWshShell_Class Set oShell = New IWshShell_Class oShell.RegWrite "HKLM\Software\Microsoft\Windows\CurrentVersion\Run\MyVBApp", _ cPGM, "REG_SZ" How exactly is this code used? Is it saved as an .exe file and ran or what? Thanks for your prompt reply and informational feedback.

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• iPhone SDK: Track users location using GPS

  - by Nic Hubbard

  I have a few questions about CoreLocation and GPS. First, what method in core location is used to continually get the users current coordinates? And at what interval should these be retrieved? Second, should these coordinates be pushed into a NSMutableArray each time they are received, so that the array of coordinates will represent the users path? Thanks, just wanting to get started getting me mind around this.

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• Where can i find good practice python problems with solutions?

  - by user319045

  Where can i find good practice python problems with solutions? I'm looking for detailed practice problems that are designed with a coding purpose in mind.

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• Calculating the semantic distance between words

  - by Ben Aston

  Does anyone know of a good way to calculate the "semantic distance" between two words? Immediately an algorithm that counts the steps between words in a thesaurus springs to mind.

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• Why isn't the SQLiteOpenHelper called just SQLiteHelper?

  - by Emanuil

  The documentation describes the class as a helper object to create, open, and/or manage a database. Having that in mind wouldn't you say that the name is a little misleading?

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• PHP string to object name.

  - by Smickie

  Ok I have a string... $a_string = "Product"; and I want to use this string in a call to a object like this: $this->$a_string->some_function(); How the dickens do I dynamically call that object? (don't think Im on php 5 mind)

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• Correct way to read configuration file and using configuration values

  - by Harza

  I'm reading applications .config file using .NET ConfigurationManager like it should be done, but .... Which one is most preferred option: Read config and store instance of (build in or custom) ConfigurationElement for later use Read config and store only needed values (but not instances of ConfigrationElement classes) for later use Read ConfigurationElement from config always when configuration values are needed These two things are in my mind: Performance impact in case 3 when reading config all the time Problems occuring in case 1 when using cached instances of ConfigurationElements

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• Good value for declaring "Position reached" in geo coords

  - by poeschlorn

  Hi Guys, I've written a kind of navigation system for pedestrians. The only thing is, that I need a criterion to finish the navigation. My values are gives as lat/long pairs. What would you assume would be a good value to say, both positions are equal/near enough to tell the user that he has reached the goal? Please keep also in mind, that it's idfficult to say "directly equal", because GPS modules may have variances... greetz from europe, poeschlorn

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• Why can't create object of an abstract class?

  - by Gaurav

  Here is a scenario in my mind and I have googled, Binged it a lot but got the answer like "Abstract class has not implemented method so, we cant create the object" "The word 'Abstract' instruct the clr that not to create object of the class" But in a simple class where we have all virtual method, able to create an object??? Also, we can define different access modified to Abstract class constructor like private, protected or public. My search terminated to this question ; Why we can't create object of an Abstract class?

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• Best C# API to create PDF

  - by Sven

  Can you recomend any PDF API for C#. Free is the best, but i dont mind paying for it.

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• JQuery: Selector that contains some text, but doesn't contain others

  - by BPotocki

  Sorry if this question is mind numbingly easy to answer, but I'm a bit new to JQuery and I have a tight deadline. I am looking for a selector for textbox elements that have this format: id = "FixedName_#" "FixedName" will always be "FixedName", but I only want to find elements where the # is positive. So I would want to find "FixedName_1", and "FixedName_2" for example, but skip over "FixedName_-1" and "FixedName_-2". Thanks!

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