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  • Purpose of PHP constructors

    - by Bharanikumar
    Hi, I am working with classes and object class structure, but not at a complex level – just classes and functions, then, in one place, instantiation. As to __construct and __destruct, please tell me very simply: what is the purpose of constructors and destructors? I know the school level theoretical explanation, but i am expecting something like in real world, as in which situations we have to use them. Provide also an example, please. Regards

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  • Best resources to learn JavaScript

    - by Tarks
    The question says it all really, I'm looking for book recommendations, video tutorials etc. I've been programming since I was about six so I don't need a book that spends 4 pages on for loops (thought that might be a Bad example in terms of javascript). Also I'm learning ASP.net at the moment so anything on interoperability features/issues would be welcome, though I'm guessing I just showed my ignorance with that question.

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  • Python development with Emacs?

    - by ipeev
    Anybody knows some actual documentation written? I can't find anything good for any of the 2 competing mods. Looks like Emacs is pretty much abandon when it comes to Python and it is a shame as there is no other programmable programming editor that comes close to Emacs.

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  • Do I need JDK or only JRE?

    - by Camran
    I use Solr in my website, and now I am about to configure my VPS account. I am at the stage where I need to install java in order to make Solr work. Now, I only plan on running solr, and using it as it is (I have no java programming skills at all), so my Q is, do I need the entire JDK which includes JRE, or is JRE enough? Thanks BTW: My server OS is Linux (ubuntu 9.10). Thanks

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  • remove repeated vaules _stack&array

    - by Fatimah
    I want to write a program to implement an array-based stack, which accept integer numbers entered by the user.the program will then identify any occurrences of a given value from user and remove the repeated values from the stack,(using Java programming language). I just need your help of writing (removing values method) e.g. input:6 2 3 4 3 8 output:6 2 4 8

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  • Apache FileUtils listFiles

    - by Marquinio
    Hey everyone I'm trying to get a List of directories. I'm using FileUtils listFiles(). I want to do something like this: listFiles(File,IOFileFilter,false). My real questions is how I can implement the accept() from the IOFileFilter so I can check if current File is a directory? Thank you in advance.

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  • Does it make sense to test ui components seperately?

    - by Bless Yahu
    I'm working on a webform that has about 15 user controls, separated by context (comments, locations, members/leaders, etc).   If each control can render individually (using real or test data), does it make sense to have a seperate "functional" test page to test them in isolation or is there a better way?

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  • Writing a script in Java?

    - by giri
    I am working with telecom company. I am familiar with Java programming language. But now I have a task to write a script, with Linux operating systems. I have to write a script for fetching data from other computer and check some conditions. How can I do that using Java?

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  • NEED PROGRAM in visualc++ opengl [closed]

    - by HAREEFML
    I AM NEW IN OPENGL VISUALC++ PROGRAMMING.I NEEDED A PROGRAM THAT, THE ROTATING OBJECTS.WHERE THE CUBE,CYLINDER,TRIANGLE & CONE AND THESE OBJECTS ROTATE AS THE KEYBOARD ARROW KEYS ARE PRESSED AND EACH OBJECTS START ROTATION WHEN THE KEYBOARD NUMBERS 1,2,3,4 ARE PRESSED. CAN I GET PROGRAM LIKE THIS? THANKS IN ADVANCE.

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  • Subscript out of bounds on a which statement in R

    - by ahandler
    I have data that looks like this: > head(newdata) zero one real 601 0.01273885 0.9872611 1 602 0.01273885 0.3242234 1 I want to select records where one is greater than .5 When I try this, I get "subscript out of bounds." Why am I getting this error? How do I perform this select? newDataGoodPredict <- newdata[ which(one0.5),] Error in newdata[which(one 0.5), ] : subscript out of bounds

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  • Disable Clipboard & Print Screen on webpage

    - by air
    i search online but can't get satisfactory result i want to protect images on my website, i know i can disable save as, right click. the real question is can we Disable Clipboard & Print Screen with JQUERY or java script. so no image copy from print screen. thanks

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  • Access message editor from app

    - by user367248
    Hello, I´m thinking about writing an android app, but have no experience in programming such apps. My question is whether it is possible to access the standart message editor of android with my app and add for example additional information to it or would it be neccesary to write a complete new editor which would be started as a seperate app. greetings

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  • How much slower is a try/catch block? [closed]

    - by Euclid
    Possible Duplicate: What is the real overhead of try/catch in C#? how much slower is a try catch block than a conditional? eg try { v = someArray[10]; } catch { v = defaultValue; } or if (null != someArray) { v = someArray[10]; } else { v = defaultValue; } is there much in it or isn't there a definative performance differance?

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  • Named pipe is using 100% CPU

    - by willwill
    I'm starting the script with ./file.py < pipe >> logfile and the script is: while True: try: I = raw_input().strip().split() except EOFError: continue doSomething() How could I better handle named pipe? This script always run at 100% CPU and it need to be real-time so I cannot use time.sleep.

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