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  • Need help drawings planets in Java.

    - by d33j
    I am looking for help/links/notes/agorithms/URLs/examples on drawing/rendering spheres in pure Java (so that I can hopefully, one day, generate/render planets with various surfaces & atmospheres) So for the moment, i'd be pretty happy to be able to start off with just drawing a wireframed sphere(s). ps: I don't want to use external libraries like Java3D, JOGL or aftermarket engines like JMonkeyEngine, Would rather keep it as straight Java.

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  • Does C# give you "less rope to hang yourself" than C++?

    - by user115232
    Joel Spolsky characterized C++ as "enough rope to hang yourself". Actually, he was summarizing "Effective C++" by Scott Meyers: It's a book that basically says, C++ is enough rope to hang yourself, and then a couple of extra miles of rope, and then a couple of suicide pills that are disguised as M&Ms... I don't have a copy of the book, but there are indications that much of the book relates to pitfalls of managing memory which seem like would be rendered moot in C# because the runtime manages those issues for you. Here are my questions: Does C# avoid pitfalls that are avoided in C++ only by careful programming? If so, to what degree and how are they avoided? Are there new, different pitfalls in C# that a new C# programmer should be aware of? If so, why couldn't they be avoided by the design of C#?

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  • Common mistakes made by new programmers without CS backgrounds [on hold]

    - by mblinn
    I've noticed that there seems to be a class of mistakes that new programmers without CS backgrounds tend to make, that programmers with CS backgrounds tend not to. I'm not talking about not understanding source control, or how to design large programs, or a whole host of other things that both freshly minted CS graduates and non-CS graduates tend to not understand, I'm talking about basic mistakes that having a CS background will prevent a programmer from making. One obvious and well trod example is that folks who don't have a basic understanding of formal languages will often try to parse arbitrary HTML or XML using regular expressions, and possibly summon Cthulu in the process. Another fairly common one that I've seen is using common data structures in suboptimal ways like using a vector and a search function as if it were a hash map. What sorts of other things along these lines would you look out for when on-boarding a batch of newly minted, non-CS programmers.

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  • OOP private method parameters coding style

    - by Jake
    After coding for many years as a solo programmer, I have come to feel that most of the time there are many benefits to write private member functions with all of the used member variables included in the parameter list, especially development stage. This allow me to check at one look what member variables are used and also allow me to supply other values for tests and debugging. Also, a change in code by removing a particular member variable can break many functions. In this case however, the private function remains isolated am I can still call it using other values without fixing the function. Is this a bad idea afterall, especially in a team environment? Is it like redundant or confusing, or are there better ways?

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  • What are the most important programming skills you need to improve as a team Leader or project manager?

    - by Aba Dov
    I decided to ask this question after I read the valuable answers to the great question What is the single most effective thing you did to improve your programming skills? and after attending Ad Burns "Secrets of a rock star programmer". It made me think about me and what programming skills I try to improve. I came to realize that there should be a difference in the programming skills you try to improve as developer and the programming skills you should improve as a team leader or project manager. My question is: What are the most important programming skills you need to improve as a team Leader or project manager? What would you recommend to others that want to improve?

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  • Fuzzy-String Search: Find misspelled information with T-SQL

    An optimized Damerau-Levenshtein Distance (DLD) algorithm for "fuzzy" string matching in Transact-SQL 2000-2008 Learn Agile Database Development Best PracticesAgile database development experts Sebastian Meine and Dennis Lloyd are running day-long classes designed to complement Red Gate’s SQL in the City US tour. Classes will be held in San Francisco, Chicago, Boston and Seattle. Register Now.

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  • How to keep your eyes on the prize?

    - by Ziv
    I'm about to go in a very intensive programming course (8AM-8PM every day of the week for three months), at the end of which I will be given a developer job-the job's quality and the project I will work on will depend on my performance in the course. Getting a good position in the company could be very beneficial and I would very much want that, does anyone have specific techniques or ways that he keeps himself concentrated on a goal for a long period of time?

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  • Some tips for working with big data models

    The main goal of this article is to present some tips to help professionals that need to work with complex, big, and hard to understand database models that anyone may came across some day. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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  • C# WebForms and Ninject

    - by ipohfly
    I'm re-working on the design of an existing application which is build using WebForms. Currently the plan is to work it into a MVP pattern application while using Ninject as the IoC container. The reason for Ninject to be there is that the boss had wanted a certain flexibility within the system so that we can build in different flavor of business logic in the model and let the programmer to choose which to use based on the client request, either via XML configuration or database setting. I know that Ninject have no need for XML configuration, however I'm confused on how it can help to dynamically inject the dependency into the system? Imagine I have a interface IMember and I need to bind this interface to the class decided by a xml or database configuration at the launch of the application, how can I achieve that?

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  • Integrating Global Knowledge Software and the Future of UPK

    With the acquisition of Global Knowledge Software, SAP and Oracle customers are wondering about the future of Oracle User Productivity Kit (UPK). Tune into this conversation with Sonny Singh, Senior Vice President, Product and Industries Business Unit to learn why Oracle purchased Global Knowledge Software, how an SAP solution fits into an Oracle strategy, and what that means for the future of UPK – the end user training and implementation solution for accelerating user adoption, ensuring the success of enterprise applications, and making organizations productive from day one!

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  • Web and Logo Design: Essential for Small Business

    In this era of life, no business can imagine to run without an attractive logo and the state of the art website. Every day, thousands of businesses are established all over the world, and double the ... [Author: Gisselle Gloria - Web Design and Development - October 05, 2009]

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  • Register Now to the New Oracle Argus Safety 7 Implementation Boot Camp in Miami, Florida - Nov 12-15, 2013!

    - by Roxana Babiciu
    Oracle's Argus Safety 7 boot camp is an instructor-led training course which provides a good understanding of how Oracle Argus Safety Standard Edition and Oracle Argus Safety Japan products addresses complex pharmacovigilance requirements and helps ensure global regulatory compliance by enabling sound safety decisions. Oracle Argus Safety's advanced database helps ensure global regulatory compliance thus in turn enabling sound safety decisions. Register now to this boot camp, a 4-day (in class) instructor led event taught using a combination of lectures and hands-on exercises.

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  • links for 2011-03-11

    - by Bob Rhubart
    The Arup Nanda Blog: Good Engineering (tags: ping.fm) Spend Analytics on a Grand Scale (BI & Analytics Pulse) (tags: ping.fm) OSB and Coherence Integration (Mark Smith) (tags: ping.fm) Oracle Technology Network Architect Day: Denver (tags: ping.fm)

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  • Resources for Virtual Machine programming

    - by good_computer
    I am a beginner (a little more than that) programmer of C. I am really interested in the field of Virtual Machines. When I read about the Python VM, the PyPy project, the advancements in JVM technology, Google V8, the Erlang VM, I really get excited about these amazing pieces of technology, and really want to get my hands dirty building them or contributing to one of these projects. I need to know.. what are the things (language, concepts, algorithms, math, etc?) I need to know/learn to be able to build a virtual machine any books or other resources that will be helpful career prospects for a virtual machine engineer (but this is least important for me for now) (one more side question: somewhere I'd read something like JVM is on the cutting edge of virtual machine technology -- that it is the most advanced VM so far -- is that true?) Please give me a LONG answer detailing all that you know.

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  • What is the Soul of SEO?

    These days are the days of professional SEO in the worldwide market today. Wherever we see, we find the reputation of search engine optimization in the global market nowadays. One of the most fascinating perspectives is that it has plenty of rewards for the modern day industries.

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  • Backtrack My "Education"

    - by perl.j
    About a year or so ago, I decided to start programming. I really, just jumped into a language (Perl) and went from there. What I regret is that I just jumped in: I didn't learn the basics (if you would call them basics). I didn't learn about Computer Science. This issue, I believe, is holding me back. Where should I "restart"? Are there any books, articles, etc. that I should read? Are there any topics an experienced programmer should know? What's your advice? Thanks! Please don't advise me to take a college/high-school class.

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  • Avast Antivirus Crashes

    - by user67966
    Well I have installed avast anti virus on Ubuntu 12.04. But after updating, it crashes! So I have made some tweaks like below: 1) I pressed press Ctrl+Alt+T and opened Terminal. When it opened, I ran the command below. sudo gedit /etc/init.d/rcS 2) typed my password and hit enter 3) when the text file opens add the line: sysctl -w kernel.shmmax=128000000 4) made sure the line you added is before: exec /etc/init.d/rc S 5) This is how it should look like: Code: #! /bin/sh # rcS # # Call all S??* scripts in /etc/rcS.d/ in numerical/alphabetical order # sysctl -w kernel.shmmax=128000000 exec /etc/init.d/rc S 6) save it 7) Reboot My question is. Did I do anything wrong. I mean as I have made some tweaks,will it lower the security of avast down like viruses do! Please if you are a programmer check this if it contains bug or harmful intentions...Thanks.

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  • HP's Linux OS Alternative Gets a Face Lift

    OS Roundup: Despite the growing popularity of the myriad Linux OS and cloud computing options, HP-UX retains a strong, albeit leaking, presence. Now, with Sun's UNIX ecosystem in turmoil, HP is seizing the day as it packages and sings the virtues of its Big Iron OS.

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  • HP's Linux OS Alternative Gets a Face Lift

    OS Roundup: Despite the growing popularity of the myriad Linux OS and cloud computing options, HP-UX retains a strong, albeit leaking, presence. Now, with Sun's UNIX ecosystem in turmoil, HP is seizing the day as it packages and sings the virtues of its Big Iron OS.

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  • Using HBase or Cassandra for a token server

    - by crippy
    I've been trying to figure out how to use HBase/Cassandra for a token system we're re-implementing. I can probably squeeze quite a lot more from MySQL, but it just seems it has come to clinging on to the wrong tool for the task just because we know it well. Eventually will hit a wall (like happened to us in other areas). Naturally I started looking into possible NoSQL solutions. The prominent ones (at least in terms of buzz) are HBase and Cassandra. The story is more or less like this: A user can send a gift other users. Each gift has a list of recipients or is public in which case limited by number or expiration date For each gift sent we generate some token that uniquely identifies that gift. For each gift we track the list of potential recipients and their current status relating to that gift (accepted, declinded etc). A user can request to see all his currently pending gifts A can request a list of users he has sent a gift to today (used to limit number of gifts sent) Required the ability to "dump" or "ignore" expired gifts (x day old gifts are considered expired) There are some other requirements but I believe the above covers the essentials. How would I go and model that using HBase or Cassandra? Well, the wall was performance. A few 10s of millions of records per day over 2 tables kept for 2 weeks (wish I could have kept it for more but there was no way). The response times kept getting slower and slower until eventually we had to start cutting down number of days we kept data. Caching helps here but it's not an ideal solution since a big part of the ops are updates. Also, as I hinted in my original post. We use MySQL extensively. We know exactly what it can and can't do both in naive implementations followed by native partitioning and finally by horizontally sharding our dataset on the application level to reside on multiple DB nodes. It can be done, but that's not really what I'm trying to get from this. I asked a very specific question about designing a solution using a NoSQL solution since it's very hard to find examples for designs out there. Brainlag, not trying to come off as rude. I actually appreciate it a lot that you are the only one who even bothered to respond. but I see it over and over again. People ask questions and others assume they have no idea what they're talking about and give an irrelevant answer. Ignore RDBMS please. The question is about nosql.

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  • One Year Oracle SocialChat - The Movie

    - by mprove
    Tweet | Like | Watch on Vimeo You’ve just watched – hopefully – my first short movie. Thank you! Here is a bit of the back stage story. About 6 weeks ago colleagues from SNBC (Social Network and Business Collaboration) announced a Social Use Case Competition. It was expected to submit a video of 2 to 5 minutes duration on the Social Enterprise (our internal phrase for Enterprise 2.0). Hmm – I had a few vague ideas, but no script – no actors – no experience in film making. Really the best conditions to try something! I chose our weekly SocialChats as my main topic. But if you don’t do Danish Dogma cinema, you still need a script. Hence I played around with the SocialChat’s archive, and all of a sudden a script and even the actors appeared in front of me. The words that you have just seen are weekly topics. Slightly abridged and rearranged to form a story. Exciting, next phase. How to get it on digital celluloid? I have to confess I am still impressed by epic. (Keep in mind, epic was done in 2004.) And my actors – words – call for a typographic style already. The main part was done over a weekend with Apple Keynote. And I even found a wonderful matching soundtrack among my albums: Didge Goes World by Delago. I picked parts of Second Day and Seventh Day. Literally, the rhythm was set, and I "just" had to complete the movie. Tools used – apart from trial and error: Keynote, Pixelmator, GarageBand, iMovie. Finally I want to mention that I am extremely thankful to BSC Music for granting permissions to use the tracks for this short film! Without this sound it would have been just an ordinary slide show. – Internal note: The next SocialChat is on Death by PowerPoint vs. Presentation Zen. CU this Friday 3pm Greenwich / 7am Pacific.

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  • Microsoft Web Camps in Moscow, Beijing, Shanghai this Week

    Microsoft Web Camps are free, two-day events where you can learn about the latest components of the Microsoft Web Platform, work with hands-on labs, build solutions in teams, and have direct interaction with Microsoft experts. Technologies covered include ASP.NET, Visual Studio, IIS and more. Register today....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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