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• I've inherited 200K lines of spaghetti code -- what now?

  - by kmote

  I hope this isn't too general of a question; I could really use some seasoned advice. I am newly employed as the sole "SW Engineer" in a fairly small shop of scientists who have spent the last 10-20 years cobbling together a vast code base. (It was written in a virtually obsolete language: G2 -- think Pascal with graphics). The program itself is a physical model of a complex chemical processing plant; the team that wrote it have incredibly deep domain knowledge but little or no formal training in programming fundamentals. They've recently learned some hard lessons about the consequences of non-existant configuration management. Their maintenance efforts are also greatly hampered by the vast accumulation of undocumented "sludge" in the code itself. I will spare you the "politics" of the situation (there's always politics!), but suffice to say, there is not a consensus of opinion about what is needed for the path ahead. They have asked me to begin presenting to the team some of the principles of modern software development. They want me to introduce some of the industry-standard practices and strategies regarding coding conventions, lifecycle management, high-level design patterns, and source control. Frankly, it's a fairly daunting task and I'm not sure where to begin. Initially, I'm inclined to tutor them in some of the central concepts of The Pragmatic Programmer, or Fowler's Refactoring ("Code Smells", etc). I also hope to introduce a number of Agile methodologies. But ultimately, to be effective, I think I'm going to need to hone in on 5-7 core fundamentals; in other words, what are the most important principles or practices that they can realistically start implementing that will give them the most "bang for the buck". So that's my question: What would you include in your list of the most effective strategies to help straighten out the spaghetti (and prevent it in the future)?

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• Breaking up classes and methods into smaller units

  - by micahhoover

  During code reviews a couple devs have recommended I break up my methods into smaller methods. Their justification was (1) increased readability and (2) the back trace that comes back from production showing the method name is more specific to the line of code that failed. There may have also been some colorful words about functional programming. Additionally I think I may have failed an interview a while back because I didn't give an acceptable answer about when to break things up. My inclination is that when I see a bunch of methods in a class or across a bunch of files, it isn't clear to me how they flow together, and how many times each one gets called. I don't really have a good feel for the linearity of it as quickly just by eye-balling it. The other thing is a lot of people seem to place a premium of organization over content (e.g. 'Look at how organized my sock drawer is!' Me: 'Overall, I think I can get to my socks faster if you count the time it took to organize them'). Our business requirements are not very stable. I'm afraid that if the classes/methods are very granular it will take longer to refactor to requirement changes. I'm not sure how much of a factor this should be. Anyway, computer science is part art / part science, but I'm not sure how much this applies to this issue.

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• How to focus on one topic? [closed]

  - by Brian

  I have a huge problem while reading computer books. Every couple pages I'll end up googling something I want to learn more about, but then I'll find something on that page that I'll want to learn more about and google that (sometimes programming related, sometime hardware related). Normally after wasting around 3 hours going into different subjects I'll return to the original text only to repeat the process a few pages later. Any advice for sticking to one subject and learning that in-depth? I have tons of programming books I've read half-way through since I'll become interested in other languages/topics (not that I'm not interested in the books I've started). Also, what would be worth focusing on in depth? I've gone into Python in the most depth but for classes I'm learning Java and assembly (ARM and Motorola 68000). Also, I've taken a class on C++. Lately I've been spending most of my time learning about Linux instead of programming though. I'm not sure what would be worth focusing on the most to get a job. In other words, how can you focus on one topic and not let curiosity about everything else get in the way? Thanks in advance, Brian

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• My Only Gripe With Programming

  - by David Espejo

  Is that im having trouble practicing problems. Even if I decide to practice the problems from my C++ book, they dont give any idea of the way the solution(program) should look like, so that I may compare to see if my program is similar in anyway. My book gives me to many generic "Write a program to do "this" " projects without really showing a concrete example of what "this" really is. In other words How Do I Know That I did "that". One problem in my book said to write a program that calculates the sales tax on a given item????? First of all slase tax differs on state(whats the state,) whats the item(a house, a dog,) How can I check this to see if im right. Programming books dont have answer keys! I know that there is no ABSOLUTE answer, thats just silly, programs can be written in many ways, but a sample of what one would look like based of the difficulty of the problem would really help! Is there a solution to this, maby a book that has worked out examples for the problems they give , or online sources that do something similar.(is there such thing as a programming book with an answer key?)

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• How to combat negative SEO?

  - by Perturbed

  Someone has decided to create a hate blog on a hosted blogging service (wordpress.com) that bashes my company. The blog contains posts that completely flame myself, my service, and contains complete falsehoods about how I run my business. Without going into details, I'm pretty sure the author of this blog is an owner of a competing service (although it is authored completely anonymously). Frankly, I'm not sure if the content would qualify for defamation or not, but I really don't like the idea of spending money on a lawyer to even attempt to prove this. I also have no interest in retorting or even replying to the blog in any sort of way -- I feel this would justify the ludicrous claims that have been posted. Unfortunately, whoever wrote the blog was pretty smart about using key words that people commonly use to search for my service. Because my customer base is relatively small and local, our PageRank is not incredibly high. As a result, when someone Google's our business name, this blog is usually within the top five results (thankfully, it's never above the business' actual website, but it's usually within eyeshot). It's incredibly frustrating to hear from customers who have seen the link (luckily, most of the time they think the author is crazy). Is there anything I can do to combat this? Would it be worthwhile to setup my own hosted wordpress.com branded blog, in an effort to trump this wordpress.com with a blog that is more active of my own? TL;DR: Someone made a hate blog using wordpress.com and is now on the first page of my business' search results. What are my options?

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• In MVC, why can't a model create a view?

  - by MUY Belgium

  I have a web application written in Perl with a controller, some "views" and some "Models". Each "Model" is corresponding to one "View". The controller (one file) creates an Model object corresponding to each view (view is a CGI argument) then retrieve the view from the module it has just created. Indeed, this should be bad thing but can you argue a bit more about it. My first idea was that since the object "Model" depends upon the "view", then the "model" is actually a view. But also the fact that ALL the cgi parameters are passed to the Model causes the "Model" to become not truelly a view but to loose all interest, since it is only related to the current implementation of the web apps. On other words, that the "Model" keep model but loose its "comprehensiveness" ("Model" is not easily understandable). I'm am quite new in project analysis, so please do not be too harsh. Why is this bad? I have made a prototype with the main structures I have understood of this web application, made as short as possible. #Model.pm package Model; import { # this requires an attribute called "view" # and this require an argument which is the cgi params } ... #View1.pm package View1; ... #Model1.pm package ModelView1 ; base Model; use View1; sub new { my $class = shift; my $arg = shift; Model::DoSomething($arg); $self->view = new View1($arg); ... } #controller.cgi my $model = 0; ... $model = new Model1( cgi_param => params() ); #there is severall models here ... print $model->get_view()->get_html();

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• Oracle is Child&rsquo;s Play&hellip;in NSW

  - by divya.malik

  A few weeks ago, my colleague Michael Seback posted a blog entry on Oracle’s acquisition of Haley.  We recently read  an interesting report from Down Under, and here was our press release on the  implementation of Oracle’s Policy automation software in New South Wales, which I thought I would share. We always love hearing about our software “at work”, and especially in the Public Sector- social services area, where it makes a big difference to people’s lives. Here were some of the reasons, why NSW chose Oracle software: “One of the things Oracle’s Policy Automation system is good at is allowing you take decision  trees and rules that are obviously written in English and code them up using very much a natural language approach,” said Holling (CIO for Human Services). “So it was quite a short process to translate the final set of rules that were written on paper into business rules that were actually embedded in the system.” “Another reason why we chose Oracle’s Automation tool is because with future versions of Siebel it comes very tightly integrated with that. It allows us to then to basically take the results of the Policy Automation survey and actually populate our client management system database with that information,” said Holling. As per Surend Dayal, North America VP, Oracle’s Policy automation has applications across a wide range of industries, including public sector—especially health and human services—also financial services, insurance, and even airline rewards programs. In other words, any business process that requires consistent, accurate decision-making where complex legislation and/or internal policies are involved. Click here to read more about Oracle and Haley.

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• CodePlex Daily Summary for Sunday, October 28, 2012

  CodePlex Daily Summary for Sunday, October 28, 2012Popular ReleasesPlayer Framework by Microsoft: Player Framework for Windows 8 (Preview 7): This release is compatible with the version of the Smooth Streaming SDK released today (10/26). Release 1 of the player framework is expected to be available next week. IMPROVEMENTS & FIXESIMPORTANT: List of breaking changes from preview 6 Support for the latest smooth streaming SDK. Xaml only: Support for moving any of the UI elements outside the MediaPlayer (e.g. into the appbar). Note: Equivelent changes to the JS version due in coming week. Support for localizing all text used in t...Send multiple SMS via Way2SMS C#: SMS 1.1: Added support for 160by2Quick Launch: Quick Launch 1.0: A Lightweight and Fast Way to Manage and Launch Thousands of Tools and ApplicationsPress Win+Q and start to search and run. http://www.codeplex.com/Download?ProjectName=quicklaunch&DownloadId=523536Orchard Project: Orchard 1.6: Please read our release notes for Orchard 1.6: http://docs.orchardproject.net/Documentation/Orchard-1-6-Release-Notes Please do not post questions as reviews. Questions should be posted in the Discussions tab, where they will usually get promptly responded to. If you post a question as a review, you will pollute the rating, and you won't get an answer.ZXMAK2: Version 2.6.7.0: - small performance improvements - fix & improvements for Direct3D renderer (thanks to zebest for testing)Media Companion: Media Companion 3.507b: Once again, it has been some time since our release, and there have been a number changes since then. It is hoped that these changes will address some of the issues users have been experiencing, and of course, work continues! New Features: Added support for adding Home Movies. Option to sort Movies by votes. Added 'selectedBrowser' preference used when opening links in an external browser. Added option to fallback to getting runtime from the movie file if not available on IMDB. Added new Big...MSBuild Extension Pack: October 2012: Release Blog Post The MSBuild Extension Pack October 2012 release provides a collection of over 475 MSBuild tasks. A high level summary of what the tasks currently cover includes the following: System Items: Active Directory, Certificates, COM+, Console, Date and Time, Drives, Environment Variables, Event Logs, Files and Folders, FTP, GAC, Network, Performance Counters, Registry, Services, Sound Code: Assemblies, AsyncExec, CAB Files, Code Signing, DynamicExecute, File Detokenisation, GUI...NAudio: NAudio 1.6: Release notes at http://mark-dot-net.blogspot.co.uk/2012/10/naudio-16-release-notes-10th.htmlPowerShell Community Extensions: 2.1 Production: PowerShell Community Extensions 2.1 Release NotesOct 25, 2012 This version of PSCX supports both Windows PowerShell 2.0 and 3.0. See the ReleaseNotes.txt download above for more information.Umbraco CMS: Umbraco 4.9.1: Umbraco 4.9.1 is a bugfix release to fix major issues in 4.9.0 BugfixesThe full list of fixes can be found in the issue tracker's filtered results. A summary: Split buttons work again, you can now also scroll easier when the list is too long for the screen Media and Content pickers have information of the full path of the picked item Fixed: Publish status may not be accurate on nodes with large doctypes Fixed: 2 media folders and recycle bins after upgrade to 4.9 The template/code ...AcDown????? - AcDown Downloader Framework: AcDown????? v4.2.2: ??●AcDown??????????、??、??、???????。????，????，?????????????????????????。???????????Acfun、????(Bilibili)、??、??、YouTube、??、???、??????、SF????、????????????。 ●??????AcPlay?????，??????、????????????????。 ● AcDown??????????????????，????????????????????????????。 ● AcDown???????C#??，????.NET Framework 2.0??。?????"Acfun?????"。 ????32??64? Windows XP/Vista/7/8 ???? 32??64? ???Linux ????(1)????????Windows XP???，????????.NET Framework 2.0???(x86)，?????"?????????"??? (2)???????????Linux???，????????Mono?? ??2...Rawr: Rawr 5.0.2: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr Addon (NOT UPDATED YET FOR MOP)We now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including ba...MCEBuddy 2.x: MCEBuddy 2.3.5: Changelog for 2.3.5 (32bit and 64bit) 1. Fixed a bug causing MCEBuddy to crash during or after installation on Windows XP 2. Bugfix for resource leak with UPnP which would lead to a failure after many days 3. Increased the UPnP discovery re-scan interval from 10 minutes to 30 minutes 4. Added support for specifying TVDB and IMDB id’s in the conversion task page (forcing the internet lookup for metadata)CRM 2011 Visual Ribbon Editor: Visual Ribbon Editor (1.3.1025.5): [NEW] Support for connecting to CRM Online via Office 365 (OSDP) [NEW] Current connection information and loaded ribbon name are displayed in the status bar [IMPROVED] Connect dialog minor improvements and error message descriptions [IMPROVED] Connecting to a CRM server will close currently loaded ribbon upon confirmation (if another ribbon was loaded previously) [FIX] Fixed bug in Open Ribbon dialog which would not allow to refresh entity list more than onceReadable Passphrase Generator: KeePass Plugin 0.8.0: Changes: Interrogative phrases (questions) like why did the statesman burgle amidst lucid sunlamps Support transitive / intransitive verbs (whether a verb needs a subject or not). Change adverbs to be either before or after the verb, at random. Add an "equal" version of each strength, where each possibility is equally likely (for password purists). 3401 words in the default dictionary (~400 more than previous release) Fixed bugs when choosing verb tenseseWay payment gateway provider for NB_Store: NB_Store_Gateway_eWay: Install package for eWAY gateway for NB_Store.fastJSON: v2.0.9: - added support for root level DataSet and DataTable deserialize (you have to do ToObject<DataSet>(...) ) - added dataset testsMicrosoft Ajax Minifier: Microsoft Ajax Minifier 4.72: Fix for Issue #18819 - bad optimization of return/assign operator.WPF Application Framework (WAF): WPF Application Framework (WAF) 2.5.0.390: Version 2.5.0.390 (Release Candidate): This release contains the source code of the WPF Application Framework (WAF) and the sample applications. Requirements .NET Framework 4.0 (The package contains a solution file for Visual Studio 2010) The unit test projects require Visual Studio 2010 Professional Changelog Legend: [B] Breaking change; [O] Marked member as obsolete WAF: Fix recent file list remove issue. WAF: Minor code improvements. BookLibrary: Fix Blend design time support o...Fiskalizacija za developere: FiskalizacijaDev 1.1: Ovo je prva nadogradnja ovog projekta nakon inicijalnog predstavljanja - dodali smo nekoliko feature-a, bilo zato što smo sami primijetili da bi ih bilo dobro dodati, bilo na osnovu vaših sugestija - hvala svima koji su se ukljucili :) Ovo su stvari riješene u v1.1.: 1. Bilo bi dobro da se XML dokument koji se šalje u CIS može snimiti u datoteku (http://fiskalizacija.codeplex.com/workitem/612) 2. Podrška za COM DLL (VB6) (http://fiskalizacija.codeplex.com/workitem/613) 3. Podrška za DOS (unu...New ProjectsAnalytics for Windows 8: SIlverlight / WPF User control integrated in WPF / SILVERLIGHT / WINDOWS PHONE Apps in order to collect user data ( Action , Timespan etc ) . bGui - User Interfaces in Batch: A small project for allowing basic user interface creation in batch. Still under strict development, see documentation for current functionality.Blog Projects: Projects wich i use in my blog postsCloud Sync Service: This Windows Service lets you sync your files across other machines by using Cloud File Storage as gateway. Amazon S3 and Windows Azure supported.CocoaVP8: CocoaVP8 is a dual-licensed commercial/GPL native library which allows Mac and iOS applications to easily use the VP8 video codec.DarkSky Orchard Microdata: Microdata is an Orchard module that exposes a MicrodataPart that will render microdata for your content items.Gerenciador Paroquial: Um conjunto de ferramentas desenvolvido para auxiliar a administração de comunidades eclesiásticas episcopais.Quick Launch: Quick Launch - a New Lightweight and Fast Way to Manage and Launch Thousands of Tools and ApplicationsRDI Alef: RDI ALEF (ALef Entities Framework) é uma biblioteca desenvolvida em C# para persistência de objetos em um banco de dados. Encapsula um manipulador SQL e o funciSend multiple SMS via Way2SMS C#: Way2SMS, 160BY2, SMS, INDIATrending: Trending program; calculates the highest and lowest changes in frequency of specific words in two files.

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• Best way to mask 2D sprites in XNA?

  - by electroflame

  I currently am trying to mask some sprites. Rather than explaining it in words, I've made up some example pictures: The area to mask (in white) Now, the red sprite that needs to be cropped. The final result. Now, I'm aware that in XNA you can do two things to accomplish this: Use the Stencil Buffer. Use a Pixel Shader. I have tried to do a pixel shader, which essentially did this: float4 main(float2 texCoord : TEXCOORD0) : COLOR0 { float4 tex = tex2D(BaseTexture, texCoord); float4 bitMask = tex2D(MaskTexture, texCoord); if (bitMask.a > 0) { return float4(tex.r, tex.g, tex.b, tex.a); } else { return float4(0, 0, 0, 0); } } This seems to crop the images (albeit, not correct once the image starts to move), but my problem is that the images are constantly moving (they aren't static), so this cropping needs to be dynamic. Is there a way I could alter the shader code to take into account it's position? Alternatively, I've read about using the Stencil Buffer, but most of the samples seem to hinge on using a rendertarget, which I really don't want to do. (I'm already using 3 or 4 for the rest of the game, and adding another one on top of it seems overkill) The only tutorial I've found that doesn't use Rendertargets is one from Shawn Hargreaves' blog over here. The issue with that one, though is that it's for XNA 3.1, and doesn't seem to translate well to XNA 4.0. It seems to me that the pixel shader is the way to go, but I'm unsure of how to get the positioning correct. I believe I would have to change my onscreen coordinates (something like 500, 500) to be between 0 and 1 for the shader coordinates. My only problem is trying to work out how to correctly use the transformed coordinates. Thanks in advance for any help!

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• String Conversion to Char for Java Game

  - by Jen

  Is there someone who could help me achieve the following points on this problems? I can't seem to get it. I tried using toCharArray and Scanner to achieve this, but it doesn't work, nor do I know how to make this things possible for my word game. :( · Get a popular name of person, place, verse, saying or event from the user. This may have a single or multiple words in it. · Create a copy of this string to an array where each letter is replaced with a hyphen (-) and each space is replaced with an underscore (_). Symbols and numbers will remain shown. · The program then asks a letter from the user. If the letter is in the inputted string, then it should be shown on the array at the same position it is shown in the string. Meaning, the letter replaces the hyphen (-) at the correct position of the array. · The program again prompts for a letter from the user and replaces the hyphen (-) of the array if it exists on the inputted string. This will be repeatedly done until such time each hyphen (-) is replaced with the correct letter. · If the user inputs an invalid letter, that is, a letter that does not exist on the inputted string, then the program should inform the user. If this happens 3 times while there is still at least one hyphen on the array, then the program should inform the user that he lost the game and showing him the whole correct string. · If the user completes the game, meaning, all hyphens have been replaced with the correct letters; then the program should congratulate the user for a job well done.

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• People != Resources

  - by eddraper

  Ken Tabor’s blog post “They Are not Resources – We Are People” struck a chord with me.  I distinctly remember hearing the term “resources” within the context of “people” for the first time back in the late 90’s.  I was in a meeting at Compaq and a manager had been faced with some new scope for an IT project he was managing.  His response was that he needed more “resources” in order to get the job done.  As I knew the timeline for the project was fixed and the process for acquiring additional funding would almost certainly extend beyond his expected delivery date, I wondered what he meant.  After the meeting, I asked him what he meant… his response was that he needed some more “bodies” to get the job done.  For a minute, my mind whirred… why is it so difficult to simply say “people?”  This particular manager was neither a bad person nor a bad manager… quite the contrary.  I respected him quite a bit and still do.  Over time, I began to notice that he was what could be termed an “early adopter” of many “Business speak” terms – such as “sooner rather than later,” “thrown a curve,” “boil the ocean” etcetera.  Over time, I’ve discovered that much of this lexicon can actually be useful, though cliché and overused.  For example, “Boil the ocean” does serve a useful purpose in distilling a lot of verbiage and meaning into three simple words that paint a clear mental picture.  The term “resources” would serve a similar purpose if it were applied to the concept of time, funding, or people.  The problem is that this never happened.  “Resources”, “bodies”, “ICs” (individual contributors)… this is what “people” have become in the IT business world.  Why?  We’re talking about simple word choices here.  Why have human beings been deliberately dehumanized and abstracted in this manner? What useful purpose does it serve other than to demean and denigrate?

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• Best way to lay-out the website when sections of it are almost identical

  - by Linas

  so, I have a minisite for the mobile application that I did. The mobile application is a public transport (transit) schedule viewer for a particular city (let's call it Foo), and I'm trying to sell it via that minisite. I publish that minisite in www.myawesomeapplication.com/foo/. It has the usual "standard" subpages, like "About", "Compatible phones", "Contact", etc. Now, I have decided to create analogue mobile application for other cities, Bar and Baz. These mobile applications (products) would be almost identical to the one for the Foo city, thus the minisites for those would (should) look very similar too (except for some artwork and Foo = Bar replacement). The question is: what do you think would be the most logical way to lay-out the website in this situation, both from the business and search engine perspective? In other words, should I just duplicate the /foo/ website to /bar/ and /baz/, or would it be better to try to create a single website under root path (/)? I don't want search engine penalties for almost-duplicate information under /foo/, /bar/ and /baz/, and also I don't want a messy, non-localized website (I guess the user is more likely to buy something if he/she sees "This-and-that is the application for NYC, the city you live in", not "This-and-that is the application for city A, city B, ..., NYC, ..., and city Z.")

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• Does LINQ require significantly more processing cycles and memory than lower-level data iteration techniques?

  - by Matthew Patrick Cashatt

  Background I am recently in the process of enduring grueling tech interviews for positions that use the .NET stack, some of which include silly questions like this one, and some questions that are more valid. I recently came across an issue that may be valid but I want to check with the community here to be sure. When asked by an interviewer how I would count the frequency of words in a text document and rank the results, I answered that I would Use a stream object put the text file in memory as a string. Split the string into an array on spaces while ignoring punctuation. Use LINQ against the array to .GroupBy() and .Count(), then OrderBy() said count. I got this answer wrong for two reasons: Streaming an entire text file into memory could be disasterous. What if it was an entire encyclopedia? Instead I should stream one block at a time and begin building a hash table. LINQ is too expensive and requires too many processing cycles. I should have built a hash table instead and, for each iteration, only added a word to the hash table if it didn't otherwise exist and then increment it's count. The first reason seems, well, reasonable. But the second gives me more pause. I thought that one of the selling points of LINQ is that it simply abstracts away lower-level operations like hash tables but that, under the veil, it is still the same implementation. Question Aside from a few additional processing cycles to call any abstracted methods, does LINQ require significantly more processing cycles to accomplish a given data iteration task than a lower-level task (such as building a hash table) would?

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• Unified data source for k2 installed Joomla websites

  - by Özkan ÖZLÜ

  I am responsible for a few web sites of my organization. I use Joomla! 2.5.9 for those web sites. They all are running at the same server. I use K2 component for content managing. I have a general website in which shows all the staff information at the 'Staff' page. Also some of those people and their contents are shown in another department's website. So, there are databases for each web site. For example: In the general website (let's say general.org), when I click on the 'Staff' menu item, page shows all of the people work at my organization. Also they work at different departments. In another web site (eg: education.general.org) when I click on the 'Staff' menu item, it shows the people work at education department. But for each web site, I have different user accounts which means a modification in one of them does not affect the other one. If the one of the education staff tries to change his profile picture on the education web site, he also has to do it on the general web site. And sometimes one person might be working at two departments. Thus he has to edit three times of his data. Is it possible to merge the records for all websites? In other words, I want everyone to insert/update their data on the general web site, and the other web sites will be updated automatically.

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• Is there a typical career path to learn game development "on the job"?

  - by mac

  The extended version of the question is: what is the typical career paths that a developer without specific experience in game development should take if he/she wishes to work in the game development industry? In other words, what are the positions such a programmer might aspire to get hired for, in the game industry? I am asking because it seems to me that - even without direct experience with 3D modelling, physics engines, shaders, etc... - for as much complex as these topics might be - they are still "just" top layers one can learn "on the job" if he/she has already good programming skills and experience in software design (for example during peer-programming sessions). I have no knowledge whatsoever of the game industry, so maybe I am being naïve here, but for all the other programming jobs I previously took, I learnt most of the specificities while working on concrete projects... so I wonder if there is a chance to do the same with game development. Thanks for your time and advice! :) PS: I don't know if this is important or not for answering the question, but scripting languages are the languages I am more proficient in. /mac

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• Unit testing to prove balanced tree

  - by Darrel Hoffman

  I've just built a self-balancing tree (red-black) in Java (language should be irrelevant for this question though), and I'm trying to come up with a good means of testing that it's properly balanced. I've tested all the basic tree operations, but I can't think of a way to test that it is indeed well and truly balanced. I've tried inserting a large dictionary of words, both pre-sorted and un-sorted. With a balanced tree, those should take roughly the same amount of time, but an unbalanced tree would take significantly longer on the already-sorted list. But I don't know how to go about testing for that in any reasonable, reproducible way. (I've tried doing millisecond tests on these, but there's no noticeable difference - probably because my source data is too small.) Is there a better way to be sure that the tree is really balanced? Say, by looking at the tree after it's created and seeing how deep it goes? (That is, without modifying the tree itself by adding a depth field to each node, which is just wasteful if you don't need it for anything other than testing.)

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• Why it is called "hash table", or "hash function"? Hash doesn't make any sense to me here

  - by Saeed Neamati

  It's now about 4 years of development that I'm using, hearing, talking about, and implementing hash tables and hash functions. But I really never understand why it's called hash? I remember the first days I started programming, this term was kind'of cumbersome terminology to me. I never figured out what is it, based on its name. I just experimentally understood what it does and why and when should we use it. However, I still sometimes try to figure out why it's called hash. I have no problem with table or function and to be honest, they are pretty deductive, rational terms. However, I think better words could be used instead of hash, like key, or uniqueness. Don't key table or uniqueness table. According to my dictionary, hash means: Fried dish of potato and meats (highly irrelevant) # symbol (AKA number sign, pound sign, etc.) (still irrelevant, maybe just a mis-nomenclature) Apply algorithm to character string (still has nothing to do with uniqueness, which is the most important feature of a hash table) Cut food Another term for hashish Does anyone know why it's called hash?

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• Using ASP.NET, Membership, and jQuery to Determine Username Availability

  Chances are, at some point you've tried creating a new user account on a website and were told that the username you selected was already taken. This is especially common on very large websites with millions of members, but can happen on smaller websites with common usernames, such as people's names or popular words or phrases in the lexicon of the online community that frequents the website. If the user registration process is short and sweet, most users won't balk when they are told their desired username has already been taken - they'll just try a new one. But if the user registration process is long, involving several questions and scrolling, it can be frustrating to complete the registration process only to be told you need to return to the top of the page to try a different username. Many websites use Ajax techniques to check whether a visitor's desired username is available as soon as they enter it (rather than waiting for them to submit the form). This article shows how to implement such a feature in an ASP.NET website using Membership and jQuery. This article includes a demo available for download that implements this behavior in an ASP.NET WebForms application that uses the CreateUserWizard control to register new users. However, the concepts in this article can be applied to ad-hoc user registration pages and ASP.NET MVC. Read on to learn more! Read More >

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• Language Design: Are languages like Python and CoffeeScript really more comprehensible?

  - by kittensatplay

  The "Verbally Readable !== Quicker Comprehension" argument on http://ryanflorence.com/2011/case-against-coffeescript/ is really potent and interesting. I and I'm sure others would be very interested in evidence arguing against this. There's clear evidence for this and I believe it. People naturally think in images, not words, so we should be designing languages that aren't similar to human language like English, French, whatever. Being "readable" is quicker comprehension. Most articles on Wikipedia are not readable as they are long, boring, dry, sluggish and very very wordy. Because Wikipedia documents a ton of info, it is not especially helpful when compared to sites with more practical, useful and relevant info. Languages like Python and CoffeScript are "verbally readable" in that they are closer to English syntax. Having programmed firstly and mainly in Python, I'm not so sure this is really a good thing. The second interesting argument is that CoffeeScript is an intermediator, a step between two ends, which may increase the chance of bugs. While CoffeeScript has other practical benefits, this question specifically requests evidence showing support for the counter-case of language "readability"

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• Extreme Portability: OpenJDK 7 and GlassFish 3.1.1 on Power Mac G5!

  - by MarkH

  Occasionally you hear someone grumble about platform support for some portion or combination of the Java product "stack". As you're about to see, this really is not as much of a problem as you might think. Our friend John Yeary was able to pull off a pretty slick feat with his vintage Power Mac G5. In his words: Using a build script sent to me by Kurt Miller, build recommendations from Kelly O'Hair, and the great work of the BSD Port team... I created a new build of OpenJDK 7 for my PPC based system using the Zero VM. The results are fantastic. I can run GlassFish 3.1.1 along with all my enterprise applications. I recently had the opportunity to pick up an old G5 for little money and passed on it. What would I do with it? At the time, I didn't think it would be more than a space-consuming novelty. Turns out...I could have had some fun and a useful piece of hardware at the same time. Maybe it's time to go bargain-hunting again. For more information about repurposing classic Apple hardware and learning a few JDK-related tricks in the process, visit John's site for the full article, available here. All the best,Mark

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• Teach Your Kid to Code Coming to Philly.NET

  - by Steve Michelotti

  Originally posted on: http://geekswithblogs.net/michelotti/archive/2014/05/20/teach-your-kid-to-code-coming-to-philly.net.aspxTomorrow night (Wednesday, May 21) my son and I will be at Philly.NET presenting Teach Your Kid to Code. Bring your kid out to Philly.NET with you for a fun evening! After our first talk, I’ll then be giving an introduction to TypeScript. Of any presentation I’ve ever given, this is my favorite: Have you ever wanted a way to teach your kid to code? For that matter, have you ever wanted to simply be able to explain to your kid what you do for a living? Putting things in a context that a kid can understand is not as easy as it sounds. If you are someone curious about these concepts, this is a “can’t miss” presentation that will be co-presented by Justin Michelotti (6th grader) and his father. Bring your kid with you to Philly.NET for this fun and educational session. We will show tools you may not have been aware of like SmallBasic and Kodu – we’ll even throw in a little Visual Studio and JavaScript. Concepts such as variables, conditionals, loops, and functions will be covered while we introduce object oriented concepts without any of the confusing words. Kids are not required for entry!

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• receiving "command not found" error messages after fresh reinstall of Lubuntu 14.04

  - by user236378

  Lubuntu 14.04 was working really great. . .until I messed up and had to do a complete fresh reinstall. Now I receive error messages when I input commands into the Terminal, even after immediately completing the fresh install. For example I type: sudo leafpad ?/etc/default/ or sudo leafpad ?/etc/default/grub I get: sudo: leafpad: command not found I type: sudo update-initramfs ?-u or sudo update-grub I get: sudo: update-initramfs: command not found or sudo: update-grub: command not found If I use the command mkdir I get: mkdir: command not found I also get this same exact error message, command not found, with sudo apt-get and wget In other words I can't do anything that I was able to do when inputting commands into the terminal. So I cannot add any repositories or update anything at all. I am not really sure what is causing the problem(s). It appeared to me that Lubuntu installed and booted up OK. However just as soon as I enter anything into the Terminal I immediately get the above error messages. I have tried to do the reinstall three times, same error messages. If anyone can suggest any fixes I would really appreciate it very much. Thank you!

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• 301 redirect: Is this good or bad for 2 domains?

  - by Tim

  Since i couldn't find any appropriate answer to my specific question, I wanted to ask you. I've read alot of things about the 301-redirect for moving pages and so on. A customer of mine has booked a new domain last year for better search results (he included his main keyword into the domain. Before he had only a domain with his business name, which had nothing to say about what he does). I told him, that he should do a 301-redirect so he doesn't loose his position in Google and to redirect all new customers coming from the old domain to the new domain. After about one year where his site hat a good amount of traffic the search results of Google for his keywords are getting more worse. Since he didn't maintain his website (no new content, bad content on all pages and so on) I assumed this would be the problem. He gave his website to another company which also makes websites. They told him, that this 301-redirection is very bad for his website. They removed it, and also updated his content and the template so now he has the same meta keywords on every page (instead of the specific ones I put there before). He also removed the canonical-tag which I placed there to ensure no duplicate content. What I am now afraid of is, that without this redirect Google now will find duplicate content and therefore kick him out of the index, which would be a nightmare, since most of his customers come over his website. I need verification of the fact, that the 301 isn't bad but in fact the correct way of working with 2 domains. If possible with good sources I can point out to him since he don't wants to hear anything about this. If someone also has a few words about the keywords and the canonical-tag I would really appreciate it! Thank you very much!

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• Beginners guide to developing optimization software

  - by Florenc

  I am novice in "serious" programming i.e. applications that deal with real-life applications and software projects that go beyond school assignments. My interests include optimization, operations research, algorithms and lately i discovered how much I do like software design/development/engineering. I have already developed some simple desktop applications for some "famous" problems like TSP using heuristc approaches, a VRP solver (in progress) and so on. While developing this kind of software I actually used basic concepts taught at school such as object-orientation analysis and design. But, I found these courses rather elementary and quite boring (for my expectations). So I decided to go a little further and start developing "real" software (and this is where I realized how important and interesting software engineering/design is.) Now, here's my issue: I can not find a "study guide" for developing software of this kind. Currently, there are numerous resources out there (books, websites, tutorials) in designing and developing complex IS, web applications, smartphone apps but I can't find a book for example entitled "optimization software development". Definetly, someone could claim that "design patterns apply to software in general" but that's not my point. My point is that I could simply use my imagination for "simple" implementations, but what happens, when my imagination can not go further? In other words I'm looking for a guide/path to bridge the gap between: Mathematics-Algorithm Design-Software Engineering-Optimization-Software development

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• Need Help Hiring a Perfectionist Programmer [closed]

  - by Bryan Hadaway

  I understand my question may be in the gray area, but I'm not able to use the Meta to ask if this question is appropriate or not so I'll simply have to risk it. My project is complete in the sense that it's a fully functional, ready to go 1.0 version. However, that's not good enough for my standards. My expertise is in HTML/CSS, not jQuery and PHP. I'm looking for someone to refine every character of my code for quality, speed, security and compatibility. I want everything to be as bug free as possible for launch. So I need an expert programmer who's a perfectionist in their coding who cares about the quality of their work (not just making it work) to review and refine my code. I'm sure I can't outright post the project's details and hope for interested parties to contact me as that wouldn't be beneficial to the community so instead I'm looking for advice from programmers about where some of best places to hire quality programmers are and the best strategies to hire the right programmer. In other words, screening applicants off of craigslist isn't going to cut it for this project. Thanks

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