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• How to design the application to conform to the n-tier architecture? (Winform sample in .net with li

  - by AlexRednic

  Rather a simple question. But the implications are vast. Over the last few weeks I've been reading a lot of material about n-tier architecture and it's implementation in the .NET world. The problem is I couldn't find a relevant sample for Winforms with Linq (linq is the way to go for BLL right?). How did you guys manage to grasp the n-tier concept? Books, articles, relevant samples etc.

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• When should I think about implementing my User authentication / session?

  - by Jason N

  After spending some time wireframing my ideas, I want to start building my rails app. However, I'm well aware that later down the line I'd like to consider multiple user accounts. Should I be thinking about the implementation of this from this early stage, or is this something I can implement without too much fuss later? It seems like something that would be stupid to attempt later, but part of me just wants to get the guts of the thing working - a couple of simply forms and writing/reading some stuff from the db.

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• What are good introductory resources for expert developers new to the .NET framework?

  - by Craig Shearer

  I have a client who wants to transition off their old environment into .NET. The client has a good grounding in basic OO concepts (their existing development environment supports this) and are expert developers, but need a quick "up to speed" introduction to the .NET framework (C# as the chosen language) for building Line of Business applications (they're keen on Silverlight). Any recommendations?

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• Java API for source formatting

  - by Marty Pitt

  Hi There are several PHP or js code formatting libs out there -- does anyone know if similar libs exist in Java? Ie., Given a string of code, return a formatted string with syntax colouring etc. It'd be ideal if it auto detected the language, but I might be pushing my luck there...

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• Can anyone provide Java program for btree or b+tree???

  - by rohit

  Hi, I am doing a project in which i require btree or b+tree data structure. but its not an important part of project. it would take my time to write a code for it. I googled it but didn't get anything.... So, can anyone provide java code for btree or b+tree implementation (with insert, delete, search algorithms)?????? it should accept string as input and form btree or b+tree of these string.

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• Thread pool stack security issue

  - by elmatador

  In a naive implementation of a thread pool, can a piece of code that is being executed read the data left by some previous code on the stack (if it was running on the same thread instance)? Also, are there any other inherent security issues connected to thread pools?

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• What is your reporting tool of choice?

  - by jms

  Every project invariably needs some type of reporting functionality. From a foreach loop in your language of choice to a full blow BI platform. To get the job done what tools, widgets, platforms has the group used with success, frustration and failure?

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• Delphi asymmetric encryption

  - by carlosb

  I'm looking for a Delphi implementation of an asymmetric encryption algorithm without any dependencies on external DLLs. Is there any available?

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• How do call this symbolic code transformation ?

  - by erric

  Hi, I often cross this kind of code transformation (or even mathematical transformation) (python example, but applies to any language) I've go a function def f(x): return x I use it into another one. def g(x): return f(x)*f(x) print g(2) leads to 4 But I want to remove the functional dependency, and I change the function g into def g(f): return f*f print g( f(2) ) leads to 4 too How do you call this kind of transformation, locally turning a function into a scalar ?

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• Advice on applying RSpec to existing code

  - by Paul

  I have been an evil coder - working like crazy to get a ROR demo operational and ignoring RSpec. Does anyone have any helpful (aka; friendly) advice on using RSpec to get the current implementation under BDD control? Especially pitfalls to avoid. Many thanks.

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• Java ME 3.0 SDK on Linux?

  - by Confused

  Is it possible to develop java me applications on linux? It appears that there is no linux version of the sdk. Otherwise what would you suggest as a good language to develop mobile applications?

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• domain name vs ip address, same server, but different speed

  - by bn

  I have two similar sites: - two of them have almost exactly the same codes, and running on the same server - both sites are the same, they just use different language. - database of the slower site is populated (maybe only the user table) the other tables for site content is the same - the faster uses root to access database one of the sites is not released yet, so it uses IP Address to access the site instead of domain name the site that is using IP address is faster (lot faster) the site that is using domain name is slower do you know why is this happening what could be the reason?

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• Downsides to immutable objects in Java?

  - by parkr

  The advantages of immutable objects in Java seem clear: consistent state automatic thread safety simplicity You can favour immutability by using private final fields and constructor injection. But, what are the downsides to favouring immutable objects in Java? i.e. incompatibility with ORM or web presentation tools? Inflexible design? Implementation complexities? Is it possible to design a large-scale system (deep object graph) that predominately uses immutable objects?

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• IOC are at the class level, but what about database conflicts?

  - by mrblah

  With IOC I understand you can substitue implementations out by merely editing a configuration file etc. BUT, what happens when the classes are married to particular database tables and sprocs, you can't just swap out an implementation since the classes/entities are tied to particular tables and stored procedures. Am I right here?

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• Save JSON outputed from a URL to a file

  - by Aidan

  Hey Guys, How would I save JSON outputed by an URL to a file? e.g from the Twitter search API (this http://search.twitter.com/search.json?q=hi) Language isn't important. Thanks! edit // How would I then append further updates to EOF?

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• How and why are languages formed / Are there any developing languages showing promise?

  - by TheDarkIn1978

  Question 1: How exactly do modern computer language come into being and why? How do they get their start and who is behind them? Question 2: If any, what languages currently in their infancy are showing promise?

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• python: list manipulation

  - by Jason S

  I have a list L of objects (for what it's worth this is in scons). I would like to create two lists L1 and L2 where L1 is L with an item I1 appended, and L2 is L with an item I2 appended. I would use append but that modifies the original list. How can I do this in Python? (sorry for the beginner question, I don't use the language much, just for scons)

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• Detecting if a file is binary or plain text?

  - by dr. evil

  How can I detect if a file is binary or a plain text? Basically my .NET app is processing batch files and extracting data however I don't want to process binary files. As a solution I'm thinking about analysing first X bytes of the file and if there are more unprintable characters than printable characters it should be binary. Is this the right way to do it? Is there nay better implementation for this task?

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• Inheritance question / problem

  - by Itsik

  I'm creating a custom Layout for android. The layout implementation is exactly the same, but once I need to extend from RelativeLayout, and once from LinearLayout. class Layout1 extends LinearLayout { // methods and fields } class Layout2 extends RelativeLayout { // the same EXACT methods and fields } How can I use inheritance to avoid DRY and implement my methods once.

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• Implementing Barrier system solution in C or C++

  - by hardikpatel172

  Actually I have been assigned to implement Barrier system solution in either C or C++ programming language... But I have zero knowledge about it ... I know the problem as well as solution theoritically.. But I have no idea how to implement it.... How can it be possible in C++ to stop or run or wait any process.... Plz yaar... Anyone help me... It's urgent...

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• Which IDE / code editor was the first to introduce a code completion feature?

  - by Uri

  I am trying to identify the point in time where code completion (autocomplete/intellisense/whatever) was first introduced in IDEs and would appreciate any pointers. By code completion here I mean a feature within the editor that offers methods or suggestions based on the code that was already typed, and I am interested in programming language related completions (not word processor style completion).

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• Localization problems in iPhone

  - by user193545

  Hi I have been trying to localize my iPhone app in two languages - english and german I have created two folders en.lproj and de.lproj each containing Localizable.strings file for respective language. I have included these files in my resources folder, changed the encoding of these files to UTF-16. I have tried cleaning the project and building it again, deleting folder at path: Library/Application Support/iPhone Simulator/User But the problem is still there. Anybody having an idea please help.

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• communication foundation showing plain text / code behind

  - by Michel

  Hi, i have a wcf service which runs perfectly on my dev machine (vs2010, target 3.5) but once deployed, it shows me the code behind of the service (actually the plain text of the .svc file) and not the normal service page: <%@ ServiceHost Language="C#" Debug="true" Service="SilverlightPoc.Web.FinanceData" CodeBehind="FinanceData.svc.cs" %> Anyone any idea why the .svc file is rendered as plain text and not as wcf service?

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• steganography in matlab

  - by alireza123

  Hi I'm working on steganography in binary image.but I have a problem in implementation in matlab. I want to konw that, How can I hide a message in a binary image? And, How can I do it in matlab with m-file or simulation?

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• Transitioning from the web to the desktop

  - by Paul Anderssen

  Can anyone recommend a language, library, framework or book which focuses on GUI programming from the perspective of a web developer? I have experience in web development, for example HTML/AJAX/PHP/MySQL among similar technologies. However, I have never programmed my own back-end, or any kind of standalone program. Does anyone have experience making this transition, and what would I best study to help make the leap from the browser to creating programs with GUIs (primarily for Windows)?

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