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  • Remove leading zero's from alphanumeic text

    - by cedar715
    I've seen questions to prefix zeros here in SO. But not the other way !! Can you guys suggest me how to remove the leading zeros in alphanumeric text. Are there any built-in APIs or do I need to write a method to trim the leading zero's? Example: 01234 converts to 1234 0001234a converts to 1234a 001234-a converts to 1234-a 101234 remains as 101234 2509398 remains as 2509398 123z remains as 123z 000002829839 converts to 2829839

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  • Can netezza database handle procedures?

    - by san6086
    Hi I am having Netezza Database. I am querying the tables through DB visualiser. Since my table creation involves complex, I am interested to use procedures but I am unable to write it in DBvisualiser. I am confused whether the problem is with the tool that I use or in Netezza? Please advice

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  • localhost problem internet explorer

    - by Alvi
    Hello everyone I have installed xampp 1.7.3. After starting apache and mysql service when I write http://localhost/ in the internet explorer address bar it shows 'The page cannot be displayed'. But for Firefox it creates no problem and shows Xampp index.php page. Now how can I solve this problem? Thanks in advance

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  • How to pick random (small) data samples using Map/Reduce?

    - by Andrei Savu
    I want to write a map/reduce job to select a number of random samples from a large dataset based on a row level condition. I want to minimize the number of intermediate keys. Pseudocode: for each row if row matches condition put the row.id in the bucket if the bucket is not already large enough Have you done something like this? Is there any well known algorithm? A sample containing sequential rows is also good enough. Thanks.

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  • How to load jni from sd card on android 2.1?

    - by user263423
    I want to load third-party jni library in runtime. I've tried to load directly from sdcard. It expectedly failed. I've tried to copy library from sdcard to /data/data/app/ and then System.load(/data/data/libjni.so) It works on HTC HERO, but fails on HTC Legend with Android 2.1. it fails during execution of native code and write to log uninformative stack trace Any other way to do it?

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  • Create thumbnail and reduce image size

    - by oo
    I have very large images (jpg) and i want to write a csharp program to loop through the files and reduce the size of each image by 75%. I tried this: Image thumbNail = image.GetThumbnailImage(800, 600, null, new IntPtr()); but the file size is still very large. Is there anyway to create thumbnails and have the filesize be much smaller?

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  • How can I quickly sum all numbers in a file?

    - by Mark Roberts
    I have a file which contains several thousand numbers, each on it's own line: 34 42 11 6 2 99 ... I'm looking to write a script which will print the sum of all numbers in the file. I've got a solution, but it's not very efficient. (It takes several minutes to run.) I'm looking for a more efficient solution. Any suggestions?

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  • nginx subdomain rewrite

    - by ivan73
    I need a nginx rewrite rule to rewrite from: http://some-keyword.example.com to www. example.com/keyword.php?keyword=$some-keyword while domain without www in front still rewrites to www.example.com and 'www' isn't taken as a keyword. Please could you help me to solve this problem, how to write these two rules?

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  • Easy way to keep counting up infinitely

    - by Andrew Alexander
    What's a good way to keep counting up infinitely? I'm trying to write a condition that will keep going until there's no value in a database, so it's going to iterate from 0, up to theoretically infinity (inside a try block, of course). How would I count upwards infinitely? Or should I use something else? I am looking for something similar to i++ in other languages, where it keeps iterating until failure.

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  • XMLEncoder in java for serialization

    - by tom
    Im just wondering how i use xmlencoder to serialize ArrayList where foo is my own made class. Do i have to do anything in particular, ie define my own xml structure first and then call toString on each value in my list and write it out? Can anyone point me to a good tutorial? http://java.sun.com/products/jfc/tsc/articles/persistence4/ Thats what i have been looking at but it doesnt seem to mention what to do with non library classes. Thanks

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  • [C++] Real time plotting/data logging

    - by Paul
    I'm going to write a program that plots data from a sensor connected to the computer. The sensor value is going to be plotted as a function of the time (sensor value on the y-axis, time on the x-axis). I want to be able to add new values to the plot in real time. What would be best to do this with in C++? Edit: And by the way, the program will be running on a Linux machine

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  • Creating an Expando object in Ruby

    - by tyndall
    Is there a better way to write this Expando class? The way it is written does not work. I'm using Ruby 1.8.7 starting code quoted from https://gist.github.com/300462/3fdf51800768f2c7089a53726384350c890bc7c3 class Expando def method_missing(method_id, *arguments) if match = method_id.id2name.match(/(\w*)(\s*)(=)(\s*)(\.*)/) puts match[1].to_sym # think this was supposed to be commented self.class.class_eval{ attr_accessor match[1].to_sym } instance_variable_set("#{match[1]}", match[5]) else super.method_missing(method_id, *arguments) end end end person = Expando.new person.name = "Michael" person.surname = "Erasmus" person.age = 29

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  • How would I rspec/test an updated_at field without using sleep() in ruby?

    - by Kamilski81
    How do i write my spec without using the sleep(1.second) method? When I remove the sleep then my tests break because they are returning the same time stamp? I have the following class method: def skip qs = find_or_create_by(user_id: user_id) qs.set_updated_at qs.n_skip += 1 qs.save! end and following spec: qs = skip(user.id) sleep(1.second) qs2 = skip(user.id) qs.should_not be_nil qs2.should_not be_nil (qs.updated_at < qs2.updated_at).should be_true

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  • Can't install Ruby on Rails on Wamp

    - by janoChen
    I followed this tutorial: http://stackoverflow.com/questions/2025449/how-to-install-ruby-on-rails-alongside-wampserver After adding D:\wamp\ruby\bin (my wamp folder is in D:) to my Path and write gem install rails in the command line I get 2 error which says that the following files couldn't be found: SSLEAY32.dll zlib.dll Here is the screenshot:

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  • how to access remote cgi from PHP script?

    - by solotim
    I'm totally rookie as to PHP. I want to write a PHP script in which it can access a remote cgi via http to get some data. I know that PHP is able to fopen any remote URL and fetch file content, but I concern about the result returned by cgi script, not the script itself.

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  • Online Database

    - by Narancha
    Hello! I want to write an application that reads blogpost from the internet and then present in my own way. The blogposts are stored in databases, so I figured that the only thing I had to do was to query an online database for the posts that I want to show.. But I can´t find a way to opoen a connecion to an online database... anyone out there with a solution to my problem? //Narancha

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