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• Learning about C Bitshift Operators

  - by Chris Hammond

  So I was doing some reading tonight on my Nerdkit , I had planned to actually do some playing around with it, but decided just to read a bit. I’ve never coded in C, I did C++ in College (not very well) and do most of my development in C# these days (when I’m doing code, mostly for fun). While all similar, there are a few differences, so doing things in C is a learning experience. There was some practice questions for AND and OR using Binary. Here are some examples. When comparing binary with AND ...(read more)

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• How do multi-platform games usually store save data?

  - by PixelPerfect3

  I realize this is a bit of a broad question, but I was wondering if there is a "standard" in the industry when it comes to storing save data for games (and is it different across platforms - Xbox/PS/PC/Mac/Android/iOS?) For example for a game like Assassin's Creed or The Walking Dead: They are on multiple platforms and they usually have to save enough information about the player and their actions. Do they use something like XML files, databases, or just straight binary dumps? How much does it differ from platform to platform? I would appreciate it if someone with experience in the game industry would answer this.

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• Help deploying using Capistrano to HostGator

  - by Kyle Macey

  My company uses HostGator to host our web sites, and I'm having a heck of a time figuring out what my final steps are to get a functioning RoR app up there. I've got all the way up to configuring mongrel (I think?) and being able to run deploy:cold without any errors. However, I can't seem to get the app to show up in the designated CPanel area (HG says the name "current" is already reserved for another application), and I'm not sure which port was allowed for me to use. I've opened tickets with Customer Support just to be told that "You can't access the database with root"... Totally unrelated to my question... So I think I'm in the final stretch and if anyone has any insight or experience with HostGator, please cue me in.

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• RTL8188CU USB Network Adaptor on ubuntu 13.04

  - by Daniel B

  I have an RTL8188CU USB Network Adaptor. On Ubuntu 12.10 I had to download RTL8188C_8192C_USB_linux_v3.4.4_4749.20121105 because the built-in rtl8192cu driver did not work on the 64bit system (Tested fine on 32bit). Now I have upgraded to Ubuntu 13.04 and of cause the switch from kernel 3.4 to 3.8 broke the compatibility with the driver source. And (Like I suspected), the 64bit issue with rtl8192cu has still not been resolved. Since Realtek has not yet provided a new driver source, I have no working network on my computer (I use USB Tethering from my mobile at the moment). I tried downloading the Windows driver and set it up with ndiswrapper, but as soon as I activate the ndiswrapper module while having that driver installed, I get a kernel panic. Since I cannot be the only one using this USB Adaptor, I wanted to see if someone else might have found a solution to get something working? Someone might even have a solution as to why the built-in 64bit driver does not work?

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• Any good tutorials all this web programming stuff for a GUI person? [closed]

  - by supercheetah

  For some reason, I am having a hard time understanding all this web programming stuff--from AJAX to JSON, etc. I've got plenty of experience programming GUIs. I'm currently working on a project in Python, and I thought that maybe I could just use PyJS (since it's GWT for Python, it uses an API that's very familiar to experienced GUI programmers like myself) to compile it with a Javascript interface on top, but alas, the compiler gave me a spectacular failure. It's obviously not meant to handle much of any Python beyond itself, and some of the core Python library. It would have been nice if it could, but I will admit, it would have been the lazy way to do it. I tried to learn Django, but for some reason, I'm just having a hard time understanding the tutorial on their website, and what it's all doing. Maybe it's not the best framework to learn, perhaps? Anyway, does anyone have a good primer/tutorial explaining all this stuff, especially for Python, and especially for someone coming from a GUI background?

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• How to determine number of resources to be allocated in a software project

  - by aditi

  Last day I have been interviewed and the interviwer asked me as given the outline of a project, how can we determine the number of resources to be needed for the same? I donot know to do do so? Is there any standard way of doing so? or is it based on the experience? or how.... I am pretty new in this activity and my knowledge is zero at present .... so any clear explanation with some example(simple) will help me(and people like me) to understand this. Thanks

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• How do game programmers design their classes to reuse in AI, network and play and pass mode?

  - by Amogh Talpallikar

  For a two player game where, your opponent could be on the network, CPU itself or near you where you would play turn by turn on the same machine. How do people design classes for re-use ? I am in a similar situation and have no experience in making such complex games. But here is what I have thought, If I am a player object , I should only be interacting with the GameManager or GameEngine Singleton , from which I will get various notifications about the game status. I dont care where and who my opponent is, this GameManager depending upon the game mode, will interact with gameNetworkManager , or AI tell me what the opponent played. I am not sure about the scenario where we play and pass [turn by turn on same machine]. Hoping for a brief but clear explanation or at least a link to a similar resource.:)

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• Changing permissions on serial port

  - by Terrik

  I'm using the Arduino IDE in Ubuntu, and am having issues with the serial port. It has worked in the past, but for reasons that may be unnecesary, I felt the need to change the ownership of some of the files from root ownership to my users ownership. This made the IDE work correctly, but I lost the ability to use the correct serial port. In the dev folder, the port I need is listed as permission 166. Someone (who is no longer in the area to help me) swapped the permissions to 666, which made it all work gloriously. However, it reverted back as soon as I restarted my computer, and if I now try to use the command: sudo chmod 666 ttyACM0 nothing happens. No error messages, but no permission change either. How can I change it, and how can I get it to change permanently. I apologize if this question is overly simplistic or unclear, I'm an ubuntu noob, and I wouldn't begrudge feedback!

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• Describe business logic with diagrams

  - by Nikos M.

  I am currently developing a web application for my thesis.I was asked by my professor to make diagrams to describe the business logic. Since I don't have a prior experience, I am pretty confused with all the terminology. I managed to clarify,I think, what business rules and business logic are, but I can't find out how you describe the business logic. Is it something particular or is it something more general? Do I need to learn UML? Does the fact that I use MVC affects the way I'll describe it?

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• Why are a seemingly disproportionate amount of programmers just, well, not nice?

  - by Macy Abbey

  Maybe it's just my personal experience, but I associate with varying different groups and types of people and it seems to me that an oddly large percentage of programmers I have encountered are "not nice" or for an attempt at a better definition: Condescending Snarky Negative in the way they talk about people If you have noticed the same thing, any theories as to why? Any suggestions on how to politely or not so politely let one of these programmers know how they are acting and suggest they correct it if they want to be perceived as professional one would want to work with? Or perhaps I've just come across a bad sample and there are bad seeds in every group of people one can name.

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• Learning Python is good?

  - by user15220

  Recently I have seen some videos from MIT on computer programming topics. I found it's really worth watching. Especially the concepts of algorithms and fundamental stuffs. The programs were written and explained in Python. I never had looked into this language before as I learned and doing stuffs with C/C++ programming. But the cleanliness and better readability of syntax attracted me. Of course as a C++ programmer for long time it's the most readable language for me. Also I heard Python library contains solid algorithms and data-structures implementations. Can you share your experience in this language?

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• Programming 101 [closed]

  - by Ashish SIngh

  i just got placed after completing my b.tech as an assistant programmer i am curious to know about some things.... i am not at all a very good programmer(in java) as i just started but whenever i see some complicated coding i feel like how man... how they think so much i mean flow and all... what should i do? should i just go with the flow or what?? java is very vast so nobody can memorize everything then how they find so many specific functions to use... should i try to memorize all the syntax stuff or just use google to things and with time it ll be all handy.... what should be my strategy to enhance my skills PS: i love java (crazy about it...) and one more thing, in my company i m not under much pressure so it is good or bad for me???? please guide me. i know you all can help me with your experience :) thank you.

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• Webinar: Meeting Customer Expectations in the New Age of Retail

  - by Sanjeev Sharma

  Webcast Date: Thursday, November 8, 2012 Time: 10am PT/ 1pm ET The retail market has expanded into the online, mobile, and social worlds. But the key to success hasn’t changed since the days of traditional, brick-and-mortar business. It’s still about service. A successful retailer today in omni-channel customer engagement must be able to deliver quality service that meets customer expectations. For many retailers, Oracle Web commerce applications help them achieve that success, allowing them to market, interact, and transact across multiple channels in a predictable, consistent, and personalized manner. Join us for this Webcast, and learn what Oracle applications can do for your business. In this session, we will discuss: The significance and dimensions of modern omni-channel customer experience The Oracle Commerce platform Real-world examples of business value derived by running customer-facing applications on Oracle Engineered Systems Register today Speakers: Sanjeev Sharma Principal Product Director, Oracle Exalogic, Oracle Kelly Goetsch Senior Principal Product Manager, Oracle Commerce, Oracle Dan Conway Senior Product Manager, Oracle Retail, Oracle

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• How to properly set up a network bridge using bridge-utils using wlan0 as the internet "source"?

  - by Miguel Azevedo

  Hey everyone this is my first post so go easy on me. I currently have a laptop with Ubuntu Studio 12.04 Beta 2 that is supplying a wireless internet connection to a windows 7 desktop computer that's connected directly to the laptop through Ethernet. I'm using the "shared to other computers" method in network manager but I believe it doesn't work with what I want to do. I would like to have the windows computer on the same subnet as every other computer in my house (192.168.1.x) so I can use LAN applications (MIDI over WiFi, Bonjour etc.) on the windows computer without having to run a massive cable to the router. I've been googling endlessly and tried multiple configurations in the /etc/network/interfaces file without success. All of them would report "cannot add wlan0 to bridge" Is there a specific way to make this work? What am I missing? Thank you

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• How can a student programmer improve his teamwork skill?

  - by xiao

  I am a student right now. Recently, I am working in a project as a leader with three other students. Due to the lack of experience, our project is progressing slowly and our members are frustrated. They do not feel sense of accomplishment in the project. I am pressured and frustrated, too. But as a team leader, I think I need to push them. But I do not know how to do. Do I help them solve coding problem or just encouragement? But if I pay too much attention on it, it would slow down my own progress. It is a not technical question, but it is very common in software development. I hope veteran programmers would give me some suggestions. Thanks!

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• D, Vala or Go for game development [on hold]

  - by Sheosi

  I'm looking forward to choose some compiled language for my 3D engine. The engine it's written in C++, however I would like to help coders by using a language which is good for games. I came with these three: Vala, D and Go. The engine is being made to write as less code as posible, also the "main" language it's going to be Lua so any of these will be the "advanced" one (mainly things which could affect performance or . Because of all this and the fact that I heard that Go is good for small projects I thought it would be a pretty good option, however it does not seems to be made (at least originally) for games and also some say I can have trouble with garbage collection in games. So what do you think? Do you have any experience with any of these three in games? How was it?

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• Exciting product releases (and one disappointing thing) with Mix10

  - by Jeff

  Sadly, I'm not at Mix this year, for the first time in a few years. It's a little harder to go if you work for Microsoft, oddly enough. And then there's this little guy next to me, who at ten days old really needs his daddy to be around! But oh, the excitement of what Microsoft has in store! It's great to finally see all of these major releases coming together for Microsoft developer products. There is a great deal of excitement among people internally no matter where you work, because there is so much cool stuff in the pipe. In case you live under a rock...Visual Studio 2010 - Great to see all of the positive feedback on the Twitter and what not. I've been using it on one of my home products for awhile, and I really like it. The newer nightly builds of ReSharper also seem to be gaining speed in quality as well. I like the new debugging features, and the text readability is not imagined. Love it.Silverlight 4 - I've been running a couple of minor SL3 apps on my personal sites for awhile now, and I'm thrilled with the platform. With a couple of key concepts down, .NET folk like you and me can do some stellar things with this, and if you're a Mac nerd (like me), it's all kinds of awesome to be able to build stuff for it without the agony of Objective-C and X Code.Windows Phone 7 Series - A few weeks ago you got to see the shiny new UI that went beyond the icon grid, and now you've got the developer story as well. That I can adapt my existing Silverlight apps with minimal effort to work on the phone is pretty powerful. Millions of .NET devs just because phone developers, using the tools they already know. How great is that?ASP.NET MVC2 - The final bits shipped last week, and there was much rejoicing. I love this framework because of the testability and the real ability to get to the true mechanics of HTTP. The other cool thing is the speed at which the framework has evolved. v2 in less than a year is pretty "un-Microsoft" in a lot of eyes.The video of keynotes and sessions is starting to appear on the Mix site, but for reasons I can't understand, they're WMV downloads. For real? Not that helpful for Mac folk. Why wouldn't they be using a Silverlight player?In any case, the thing that continues to motivate me is that getting what you imagine on to the Internet gets easier every year. This is not a new revelation for me. I've only been at Microsoft for four months, but I've felt this way for years. I'm thrilled to be a part of it.

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• Open source level editor for HTML5 platform game?

  - by Lai Yu-Hsuan

  A natty GUI editor is very helpful to create level map. I want to use some open-source choices rather than build my own from scratch. I found Tiled Map Editor but it doesn't work for what I want. Though I'm building HTML5 game, I don't have to use a HTML5 level editor as long as it can output well-formatted map files which my javascript can read. Edit: Sorry for the confusion. Tiled does not work for me because to make the player perform a 'tricky' jump, sometimes I want to set the distance between two platforms to, say, 7/3 or 8/3 tiles. But in Tiled I get only 2 or 3. If Tiled can do this, please teach me.

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• Support / Maintenance documentation for development team

  - by benwebdev

  Hi, I'm working in the Development dept (around 40 developers) for a large E-Commerce company. We've grown quickly but have not evolved very well in the field of documenting our work. We work with an Agile / Scrum-like methodology with our development and testing but documentation seems to be neglected. We need to be able to make documentation that would aid a developer who hasnt worked on our project before or was new to the company. We also have to create more high level information for our support department to explain any extra config settings and fixes of known issues that may arise, if any. Currently we put this in a badly put together wiki, based on an old Sharepoint / TFS site. Can anyone suggest some ideal links or advice on improving the documentation standard? What works in other companies? Has anyone got avice on developing documentation as part of an agile process? Many thanks, ben

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• Do More, Spend Less, Speed Time to Market – All with Oracle Database Appliance.

  - by jgelhaus

  Do More, Spend Less, Speed Time to Market – All with Oracle Database Appliance. Join Oracle for a first hand experience that will highlight how your business can lower TCO for hardware and software, do more with your existing personnel and resources, and get your products to market faster with Oracle Database Appliance. Learn how you can take advantage of the world's most popular database – Oracle Database 11g – in a single solution that's affordable, provides automated installation, is easy to manage, and is supported end-to-end by Oracle. Oracle Database Appliance is the complete package: software, server, storage, and networking, all designed by Oracle to simplify your technology and let you get down to business. Webcast Schedule Wednesday, April 4 1:00pm Eastern Webcast Link Teleconference: 1-866-753-5684 Conference Code: 61908866 Passcode: oda Add meeting to your calendar Wednesday, April 11 1:00pm Eastern Webcast Link Teleconference: 1-866-753-5684 Conference Code: 61909590 Passcode: oda Add meeting to your calendar Wednesday, April 18 1:00pm Eastern Webcast Link Teleconference: 1-866-753-5684 Conference Code: 61910385 Passcode: oda Add meeting to your calendar

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• "sudo cd ..." one-liner?

  - by j-g-faustus

  Occasionally I want to cd into a directory where my user does not have permission, so I resort to sudo. The obvious command sudo cd somedir doesn't work: $ sudo mkdir test $ sudo chmod go-rxw test $ ls -l drwx------ 2 root root [...snip...] test $ cd test -bash: cd: test: Permission denied $ sudo cd test sudo: cd: command not found Using sudo su works: $ sudo su # cd test Is it possible to make this into a one-liner? (Not a big deal, just idle curiosity :) The variations I tried didn't work: $ sudo "cd test" sudo: cd: command not found $ sudo -i cd test -bash: line 0: cd: test: No such file or directory $ sudo -s cd test The last one doesn't give an error, but it cd's within a new shell that exits by the end of the line, so it doesn't actually take me anywhere. Can someone enlighten me as to why this happens? Why is sudo cd not found, when for example sudo ls ... works fine?

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• metro style on windows and android

  - by MRM

  I want to develop a rather simple app using windows 8 metro style for GUI. But i need this app to have the same appearance, GUI, for both platforms, so that end users that uses it both on PC and a mobile device to have the same visual experience and a flawless navigation. So, does anyone have knowledge of a Java framework or library to satisfy these needs? Or maybe a method to create a web-based app using HTML, PHP, JScript etc. (maybe something using a local server, on the same machine, because a web server is out of discussion, at least for the moment)? Any idea, method, technology related to the subject is also helpful. And if what you are thinking at can be used for IOS too, the better.

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• JSF 2.x's renaissance

  - by alexismp

  JAXenter's Chris Mayer posted a column last week about the "JavaServer Faces enjoying Java EE renaissance under Oracle's stewardship". This piece discusses the adoption and increased ecosystem (component libraries, tools, runtimes, ...) since the release of JSF 2.0 as well as ongoing work on 2.2. As Cameron Purdy comments, Oracle as a company certainly has vested interest in JSF and will continue to invest in the technology. Specifically for JSF 2.2, and as this other article points out, a lot of the work has to do with alignment with HTML5 (see this example) and making the technology even more mobile-friendly (along with the main Java EE 7 "PaaS" theme of course). Chris' article concludes with "JSF appears to be the answer for highly-interactive Java-centric organisations who were hesitant of making a huge leap to JavaScript, and wanted the best RIA applications at their disposal".

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• How can i move towards the Business intelliegnce/ data mining fields from software developer

  - by user1758043

  I am working as python developer and i work with djnago. I also do some web scrapping and building spiders and bots. Now from there i want to make my move to Business intelligence. I just want to know how can i move into that field. because as companies are not going to hire me in that field directly , i just want to know how can i make transistions. I was thinking of first work as Database developer in sql and then i can see futher. But i want from you guys so that i can start learning that stuff so that i can chnage jobs keeping that in mind. here in my area there are plent of jobs in all area but i need to know hoe to transitio and what thing i should learn before making that transition. Here JObs are plenty so if i know my stuff , getting job is piece of cake becaus ethey don't ahve any persons. same jobs keep getting advertised for months and months

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• cpu usage and near to crash when i plug in the power cable

  - by mohamad

  i have had this problem since i installed ubuntu 12.4 on my laptop (on all of distro i have this problem execpt of backtrack) my problem is when i start my linux while it connect to power source there is no problem everything works fine . but when i disconnect and wants to work with battery it crash i mean everything work tooooo slowly and my cpu usage goes to 100 ... it happen too when i start my linux with battery and want to connect the power source to it .... it happens again . i updated my distro and now on i have 12.10 on my laptop but it has this problem . my lap top is hp probook 4520s my graphic card is ati radeon 530 v and i installed catalyst control center on my lap top and it works fine but the only problem is that what i said ...is it relate to my graphic card ???

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