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  • How can I pad part of a string with spaces, in Perl?

    - by sid_com
    Hello! Which version would you prefer? #!/usr/bin/env perl use warnings; use strict; use 5.010; my $p = 7; # 33 my $prompt = ' : '; my $key = 'very important text'; my $value = 'Hello, World!'; my $length = length $key . $prompt; $p -= $length; Option 1: $key = $key . ' ' x $p . $prompt; Option 2: if ( $p > 0 ) { $key = $key . ' ' x $p . $prompt; } else { $key = $key . $prompt; } say "$key$value"

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  • what is this value means 1.845E-07 in excel ?

    - by Lalit
    Hi , i am reading the excel sheet from c# by using interop services. My sheet have one of cell value as 0.00. but run time when i checking the value of that cell in c# code I am getting "1.845E-07" this value. When i check in excel sheet, on that cell right clicked , say format cell I got "1.845E-07" value in sample section. How to get exact value? Please help me. code is huge, so i can't provide it here . that line is: if (Convert.ToString(((Excel.Range)worksheet.Cells[iRowindex, colIndex_q10]).Value2) != string.Empty) { drRow[dtSourceEXLData.Columns[constants.Floor]] = ((Excel.Range)worksheet.Cells[iRowindex, colIndex_q10]).Value2.ToString(); }

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  • Shedule tasks question

    - by gabac
    Hi everyone I have a though question :) Let's say you get some data which is due at a certain point int the future. You get A saying my task is due in 1h and other which says his task is due in 1.5h. The information is collected on your server. In which programming language or even how would solve that? So task a will be executed in 1h, task B in 1.5h. I read something about java scheduler but I'm not yet sure if this is the right way. What are ur ideas? Cheers

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  • PHP String to Float

    - by John
    I am not familiar with PHP at all and had a quick question. I have 2 variables @pricePerUnit and @invoicedUnits. Here's the code that is setting these to values: $InvoicedUnits = ((string) $InvoiceLineItem->InvoicedUnits); $pricePerUnit = ((string) $InvoiceLineItem->PricePerUnit); If I output this, I get the correct values. Lets say 5000 invoiced units and 1.00 for price. Now, I need to show the total amount spent. When I multiply these two together it doesn't work (as expected, these are strings). But I have no clue how to parse/cast/convert variables in PHP. What should I do?

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  • Can i query a List? Java

    - by Nitesh Panchal
    Hello, Say i have List<SomeObject> objList = new ArrayList<SomeObject>(); If someObject contains a field named id. Can we find it through some query like objList.filter('id=2'); wihout looping through the list? If not, then why? This can be so useful method and used as an alternative to write tedious for loop? Just a question that came to my mind so i thought i must clear it here :) Thanks in advance :)

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  • Find hosted directories Jetty/Apache

    - by Paul Creasey
    Hi, Let say I have a directory which is being hosted by Jetty or Apache (i'd like an answer for both), i know the URL including the port and i can log into the server. How can i find the directory that is being hosted by a certain port? I'd also like to go the other way, i have a folder on the server, which i know if being hosted, but i don't know the port so i can't find it in a web browser. How can i find a list of directories that are being hosted? This has been bugging me for ages but i've never bothered to ask before! Thanks.

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  • Do I put ninject in my project that contains my service layer as well?

    - by chobo2
    Hi I have 3 project files(webui,framework that contains service layers and repos and unit tests). Most of my unit testing will be done in the service layer as this will contain all the business logic. So I will be mocking out the repo. In some cases I will query my a repo from my controller(say I just need all users in the database and I am not doing any business logic for it). So I am thinking that I need to have ninject used in my framework project. Where is the best place to put it so I can use them against my repos in my service layers?

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  • PHP / XHTML. Should I place everything in echo tags?

    - by 110175914651386975417
    A quick question involving PHP development, I seem to be wondering about this more and more as I develop more complex sites. Basically say we have a basic PHP / XHTML inbox (messaging system). I perform checks at the top (check if user is logged in, check if user has correct permissions etc). Then use the 'header('location:www.abc.com)' function if the authentication fails. The question is do I write the rest of the inbox code in a huge 'else' block or just use standard html. I read somewhere about about it being bad to put any code after using the 'header' function.

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  • Rails 2.3: using another models named_scope inside another named_scope

    - by mustafi
    Hi Let's say I have two models like so: class Comment < ActiveRecord::Base belongs_to :user named_scope :about_x :conditions => "comments.text like '%x%')" end class User < ActiveRecord::Base has_many :comments end How can I add a named_scope to the user model like so class User < ActiveRecord::Base has_many :comments named_scope :comments_about_x, :includes => :comments, :comments_named_scope => :about_x end Which allows me to do all_user_comments_about_x = User.comments_about_x The reasoning is I often need to use the comment models about_x named scope logic but I don't want to have "comments.text like '%x%')" scattered around my code. I hope this make sense :) Thank you

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  • C# - Silverlight - Custom control or UserControl ?

    - by cmaduro
    I need a button that is visually completely customizable, but has custom logic to publish events and manage it's visual state based on events it has registered for. When I say visually customizable, I mean I should be able to both create the button in xaml and set it's style by binding to the supplied style. Or I can create an instance of the button and set the style by passing a parameter to an alternate constructor. Or by calling a method on the button class to set the style. I do not plan on substituting the controls template, it should be a button. Can anyone point me to some code samples of this?

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  • How to overwrite virtual fnc in good style? [C++]

    - by atch
    Hi, guys I know this question is very basic but I've met in few publications (websites, books) different style of overwriting virtual function. What I mean is: if I have base class: class Base { public: virtual void f() = 0; }; in some publications I saw that to overwrite this some authors would just say: void f(); and some would still repeat the virtual keyword before void. Which form of overwriting is in good style? Thank you for your answers.

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  • Is drupal cms suitable for this?

    - by Folle
    My aim is to create a website where I can add some test content along with pictures. Then, what exactly I need is an easy way to add those into the site. Say, I have designed (in photoshop) a certain theme for this purpose, and now I am wondering if I could use drupal for the matter? Or should I create a website from scratch? Which route is the easiest? Apply the theme to the drupal? I've just never used no CMS, that's why I ask.

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  • Can you have 2 completely independent instances of Eclipse running at the same time?

    - by froadie
    I'm sure there isn't really a way to do this, but figured it doesn't hurt to ask... I use Eclipse a lot. I'm currently using it for both Java and Python (with PyDev). I often find that I have one project open, with lots of files, say in Java... And then for some reason I have to switch to a Python project for a bit. I want to leave my Java project the way it is, and I don't just want to open tons of Python files in the same place because then I have too much open at once and get a headache and confused. Is there any way I can just leave the Java project exactly the way it is, and sort of open a completely new session of Eclipse? (sort of the way you can do with a browser) Or is this just wishful thinking?

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  • Oracle Group By Issue

    - by m_oLogin
    Hello community, I am strugling with what seems an easy problem to tackle (at least for me in MySQL / SqlServer!) I'll simplify the problem. Let's say I have the following table: Table VOTE ID ID_IDEA DATE_VOTE with ID_IDEA FK(IDEA.ID) 1 3 10/10/10 2 0 09/09/10 3 3 08/08/10 4 3 11/11/10 5 0 06/06/10 6 1 05/05/10 I'm trying to find the latest votes given for each individual idea, meaning I want to return only rows with ID 4, 2 and 6. It seems with Oracle that you can't use GROUP BY without using a function like SUM(), AVG, etc. I'm a bit confused about how it's supposed to work. Please advise, Thanks.

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  • Java: howto write equals() shorter

    - by erikb
    I get headaches when I have to write nearly 10 lines of code to say 2 Objects are equal, when their type is equal and both's attribute is equal. You can easily see that in this way of writing the number of lines increase drastically with your number of attributes. public class Id implements Node { private String name; public Id(String name) { this.name = name; } public boolean equals(Object o) { if (o == null) return false; if (null == (Id) o) return false; Id i = (Id) o; if ((this.name != null && i.name == null) || (this.name == null && i.name != null)) return false; return (this.name == null && i.name == null) || this.name.equals(i.name); } }

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  • Cant handle it (jQuery hanlder understanding needed)

    - by chainwork
    I'm embarrassed to even ask BUT could someone help me understand what a "handler" is. I am new to jQuery and the API constantly has references similar to the following: toggle( handler(eventObject), handler(eventObject), [ handler(eventObject) ] ) I scratch my head and say to myself "what the hell is a handler". Then I check my 2 jquery books and don't really see anything specific there. I get what an event handler does, it handles an event. But the word handler in the above context confuses me including "eventObject". I tried to google it but could not really find a really clear definition of what exactly a handler is as it relates to jquery. Thanks for your help =]

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  • C#: Converting string to namespace

    - by Am
    Hi, I have an interface named IHarvester. There are 3 implementations of that interface, each under their own namespace: Google Yahoo Bing A HarvesterManager uses the given harvester. It knows the interface and all 3 implementations. I want some way of letting the class user say in which harvester it wants to use. And in the code select that implementation, without a switch-case implementation. Can reflection save my day? Here is the code bits: // repeat for each harvester namespace Harvester.Google { public abstract class Fetcher : BaseHarvester, IInfoHarvester {...} } public enum HarvestingSource { Google, Yahoo, Bing, } class HarvesterManager { public HarvestingSource PreferedSource {get;set;} public HarvestSomthing() { switch (PreferedSource) .... // awful... } } Thanks.

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  • Is it possible to Serialize and Deserialize objects in C++?

    - by GK
    As we know c++ is also an Object Oriented Programming language where most the things are objects like java. So wanted to know is the Serialize and deserializ features are available in c++ as well as we do it in java? If yes how it can be achieved? In java We use Serializable Interface to say that this type of object can be serialized and deserialized. So in c++ how? And out of curiosity is it same in c# as in java?

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  • How to copy tables from one website to another with php?

    - by Lost_in_code
    I have 2 websites, lets say - example.com and example1.com example.com has a database fruits which has a table apple with 7000 records. I exported apple and tried to import it to example1.com but I'm always getting "MYSQL Server has gone away" error. I suspect this is due to some server side restriction. So, how can I copy the tables without having to contact the system admins? Is there a way to do this using PHP? I went through example of copying tables, but that was inside the same database. Both example.com and example1.com are on the same server.

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  • Which function should i use for testin if a var isset or not?

    - by streetparade
    I'm sometimes confused to using which one of them, say i have a function called getmember($id) function getmember($id) { // now this is the confusing part // how do i test if a $id was set or not set? //solution 1 if(empty($id)) { return false; } // solution 2 if(isset($id)) { return false; } } Thats sometimes not clear tome some times if a parameter in a function is set like function($var="") Then i do if($var ==="") { return false; } What should i use the next time isset ? emtyp ? or ===''

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  • OpenGL performance on rendering "virtual gallery" (textures)

    - by maticus
    I have a considerable (120-240) amount of 640x480 images that will be displayed as textured flat surfaces (4 vertex polygons) in a 3D environment. About 30-50% of them will be visible in a given frame. It is possible for them to crossover. Nothing else will be present in the environment. The question is - will the modern and/or few-years-old (lets say Radeon 9550) GPU cope with that, and what frame rate can I expect? I aim for 20FPS, but 30-40 would be nice. Would changing the resolution to 320x240 make it more probable to happen? I do not have any previous experience with performance issues of 3D graphics on modern GPUs, and unfortunately I must make a design choice. I don't want to waste time on doing something that couldn't have worked :-)

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  • Performing an operation based on values within an array

    - by James W.
    I'm trying to figure out how to do operations based on values in an array. The values are taken from a string and inserted into the array e.g num = TextBox.Text.Split(' '); results = Convert.ToDouble(num[0]); for (int i = 0; i < num.Length - 1; i++) { if (num[i] == "+") { results += Convert.ToDouble(num[i++]); } ... } So based on this, let's say the TextBox string value was "1 + 2". So the array would be: ------------- | 1 | + | 2 | ------------- 0 1 2 (indexes) The part I'm having trouble with is Convert.ToDouble(num[i++]).. I've tried num[1] + 1, num[i + 1], etc I'm trying to figure out how to get it to perform the operation based on the first value and the value in the index after the operator. Which is the correct way to do something like this?

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  • Ruby: What's going on here?

    - by user204078
    This question is based off some really odd code I recently found in a colleagues work. He claims not to know how it works only he copied it from somewhere else. That's not good enough for me I want to understand what's going on here. Say we have something like (test1, test2, test3="3", test4="4") the result will be that test1 == "3", test2 == "4", test3 == nil and test4 == "4" I understand why this happens, but if we do something like (test1, test2, test3="3", test4="4", test5 = "5", test6 = "6") now the result is test1 == "3", test2 == "4", test3 == "5", test4 == "6", test5 == "5", test6 == "6" Why isn't test5 == nil?

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  • How to retrieve CSS style object by CSS class name?

    - by Chir
    Hi, Is it possible to get all properties of a css class associated with an element? e.g. .hightligh { font-weight: bold; border: 1px solid red; padding-top:10px; } Lets say the css class "hightlight" is assigned to div element <div class='highlight'></div> Now using JavaScript, I need to iterate through all style properties of css class "highlight" associated with the div element. Basically, I want to treat it as a JavaScript object whose properties can be accessed using iterator or for loop. Thanks in advance

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  • Possible to get jquery .serializeArray() values out by key name?

    - by chobo2
    Hi I am using the jquery .serializeArray() function and I send it to the server and that works all good.However I need to update a couple things on the client side that are serialized. So instead of doing another selector on the textbox I want to just grab it out of the serialized array. I am not sure how to do this Product=Test&Qty=50 So say if I have something like this. I can I do something like this var sendFormData = form.serializeArray(); var val = sendFormData["Product"].value; but this seems not to work. I only can get it to work when I do something like this var sendFormData = form.serializeArray(); var val = sendFormData[0].value; I really don't want to do it by index since that means if the order changes the values could be all wrong. If you could do it by like keyname then that would not be a problem.

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