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• Problem with text deletion in vi editor

  - by user184256

  When I am writing C code on the vi editor, I am not able to use the backspace keys or my arrow keys to delete or navigate through lines. Some unexpected special characters occur on the screen that is on middle of my code and I am not able to delete them also. If I use my delete key, the whole code gets deleted. I have tried both insert mode using 'i' and 'a'. I am able to manage this situation for C programming by using the text editors but when I am creating LeX and yacc programs, I find this awkward. Can you please help me with this?

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• Ubuntu 14.04 doesn't detect my discrete GPU

  - by user258887

  I recently purchased a laptop with an Nvidia GeForce 860m, and have installed Ubuntu 14.04. On my old laptop I had 12.04, which automatically filled Additional Drivers with Nvidia drivers. But on this computer, the only thing in Additional Drivers is Qualcomm. So I manually installed Nvidia, but X Server Settings doesn't seem to detect any GPU... lspci | grep VGA reports only my integrated Intel GPU, but lspci -v reports many things, including the Nvidia GPU: 01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 860M] (rev a2) Subsystem: ASUSTeK Computer Inc. Device 157d Flags: fast devsel, IRQ 16 Memory at ec000000 (32-bit, non-prefetchable) [size=16M] Memory at c0000000 (64-bit, prefetchable) [size=256M] Memory at d0000000 (64-bit, prefetchable) [size=32M] I/O ports at e000 [size=128] Expansion ROM at ed000000 [disabled] [size=512K] Capabilities: access denied Don't know what any of that means. Not sure if it's supposed to say 'access denied'... I need my GPU to do CUDA and OpenGL programming. What else can I do to figure out why this isn't working?

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• Online iPad 1&2 emulators give different results compared to the real thing

  - by Systembolaget

  I'm designing a centered website (jQuery Isotope). Thre sandbox is here. I have used some online iPad 1&2 emulators to test how the site is viewed on these devices. Then, I managed to get hold of the real thing. Result: on real iPads, the site is centered and the layout adjusts automatically as expected. In online iPad emulators, the site is not quite centered and additional Isotope elements are squeezed in. Of course, I trust the real thing more than online emulators, but why is this happening? To me, it feels like website testing with online emulators is not so reliable after all? If this question is wrong here, please move it or tell me where it should go. SO is about programming, this question isn't. Thanks!

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• Best accounting software for freelance/contractor programmer? [closed]

  - by user1352034

  I know this isn't exactly a programming question but I am hoping to find some programmers who freelance or do contractor work in the US. I have started to work on side jobs and have been billing my clients using Paypal. I then would store those records in a Google excel doc but realize this will get out of hand as time goes on and am looking for a good solution. I am no accountant so I am not sure of everything I would need but I am guessing basic invoicing, expenses, reporting, integration with paypal, etc.. Any contractors or freelancers in here could recommend what they use? I have researched a few but would like to hear what other people are using and how it is working out for them. Thanks for your time!

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• New Video: How Innovation Happens Today

  - by Kerrie Jordan

  How do you make innovation happen at your organization? If whiteboards, spreadsheets, point solutions or complicated systems are involved, you'll want to watch this new video!  See how Oracle Innovation Management can make it easier to know which ideas to pursue.  Remove guesswork and turn innovation into a structured, consistent and effective business process.  Become an innovation hero!  Watch in HD for supreme viewing experience, and learn how you can build your innovation discipline into a scaleable, repeatable, and strategic business process.

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• Design a Distributed System

  - by Bonton255

  I am preparing for an interview on Distributed Systems. I have gone through a lot of text and understand the basics of the area. However, I need some examples of discussions on designing a distributed system given a scenario. For example, if I were to design a distributed system to calculate if a number N is primary or not, what will the be design of the system, what will be the impact of network latency, CPU performance, node failure, addition of nodes, time synchronization etc. If you guys could present your in-depth thoughts on this example, or point me to some similar discussion, that would be really helpful.

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• How to use OpenGL functions from multiples thread?

  - by Robert

  I'm writing a small game using OpenGL. I'm implementing basic networking in this game and I'm facing a problem. I have a thread in my client socket class that check for available data, when there are data I raise an event like this : immutable int len = this.m_socket.receive(data); if(len > 0) { this.m_onDataEvent(data); } Then on my game class, I have a function that handle and parse data like this : switch(msgId) { case ProtocolID.CharacterData: // Load terrain with opengl, character model.... Im not able to call opengl functions because my opengl context is created from a different thread. But I really don't know how I can solve this problem, I tried Google but it's really hard to find a solution. I'm using D programming language if it can help.

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• Should I use structure from a core library graphic toolkit in my domain?

  - by Laurent Bourgault-Roy

  In java (and many other programming language), there are often structure to deal with graphic element : Colour, Shape, etc. Those are most often in a UI toolkit and thus have a relatively strong coupling with UI element. Now, in the domain of my application, we often deal with colour, shape, etc, to display statistic information on an element. Right now all we do with it is display/save those element with little or no behaviour. Would it make sense to avoid "reinventing the wheel" and directly use the structures in java.awt.* or should I make my own element and avoid a coupling to this toolkit? Its not like those element are going away anytime soon (they are part of the core java library after all), but at the same time it feel weird to import java.awt.* server side. I have no problem using java.util.List everywhere. Should I feel different about those class? What would be the "recommended" practice in that case?

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• Right mix of planning and programing on a new project

  - by WarrenFaith

  I am about to start a new project (a game, but thats unimportant). The basic idea is in my head but not all the details. I don't want to start programming without planning, but I am seriously fighting my urge to just do it. I want some planning before to prevent refactoring the whole app just because a new feature I could think of requires it. On the other hand, I don't want to plan multiple months (spare time) and start that because I have some fear that I will lose my motivation in this time. What I am looking for is a way of combining both without one dominating the other. Should I realize the project in the way of scrum? Should I creating user stories and then realize them? Should I work feature driven? (I have some experience in scrum and the classic "specification to code" way.)

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• Advice for transitioning into a Java developer position from doing other types of web development?

  - by Rick

  I've been doing web programming and currently work at a company working with mainly PHP and Javascript. For a little while now I've been becoming more and more frustrated with the shortcomings of this type of development and want to move to a company with a more defined development process that values doing things the "right way" such as using Unit tests, dependency injection / IoC, etc. I've been learning JEE / Java as much as I can on my own time but would really like to make a switch to doing this as my career and leave behind the PHP world altogether. I'm just wondering if anyone can give me advice on which things to put my main focus on right now to make myself marketable as an entry level Java developer. Basically, I feel that I'm not really learning anything new at my current job that will benefit me and its only making me more and more frustrated so I figure if there is any way to position myself for a transition I would rather do it sooner than later. Thanks for any advice.

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• How to make a great functional specification

  - by sfrj

  I am going to start a little side project very soon, but this time i want to do not just the little UML domain model and case diagrams i often do before programming, i thought about making a full functional specification. Is there anybody that has experience writing functional specifications that could recommend me what i need to add to it? How would be the best way to start preparing it? Here i will write down the topics that i think are more relevant: Purpose Functional Overview Context Diagram Critical Project Success Factors Scope (In & Out) Assumptions Actors (Data Sources, System Actors) Use Case Diagram Process Flow Diagram Activity Diagram Security Requirements Performance Requirements Special Requirements Business Rules Domain Model (Data model) Flow Scenarios (Success, alternate…) Time Schedule (Task Management) Goals System Requirements Expected Expenses What do you think about those topics? Shall i add something else? or maybe remove something?

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• Is there a good book or articles to learn about 2D Game Design and Effects?

  - by user28015

  I am not looking for a read how to develop games and how to implement one. I am looking for a general about possible effects in 2D Games and about general design of modern 2D gaming. I have programmed several smaller games over the years and also read books like "Golden Rules of Game Programming" by Martin Bronwlo. So I know how to implement games. What I am looking for are 2 things: Finishing touches such as effects like explosions, particles etc. Not how to make them, but how to design them so it looks right and cool. How to make a 2D game feel "more right" so that users get a satisfying gaming experience. I played a lot of 2D games but I could use some more advice.

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• How can I get Ubuntu 12.04 to boot on a Gigabyte 990Fx MB (efi problem?)

  - by Jeffrey

  I am trying to install Ubuntu 12.04 on a home made system with a gigabyte 990Fxa MB. I can make it through the install process. It does not boot. Windows 7 does boot on the same machine. Suse 11.4 boots on the same machine. Suse 12.4 does not boot. I think there may be an issue with the EFI / GPT system. I know very little about these systems. I really expected the machine to boot. What can I do to get the system to boot? Please direct me to a path to trouble shoot this problem. thanks Jeffrey

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• Transisting from Chemical engineering to software industry what to do??

  - by console cowboy

  Hello all. Currently I am in my last semester of Engineering & has made my mind to switch to software field but given my knowledge of programming limited only to C. I am confused what to do next.Currently i have two choices. 1) Get good at C,Learn Python & write some good code/Apps & increase my employability chances. Or 2) Do some Java/.Net certifications to increase my employability chances. Any kind of advice/suggestion is highly welcomed. P.s:I am also good at Linux & have a above average knowledge of operating systems. P.p.s:An view from Indian Programmers would be beneficial.

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• Breaking into database administration

  - by user603794

  Hello to all, I am brand new on this site and look forward to interacting with each of you. I am graduating in June with my Bachelors Degree in Computer Information Systems with hopes of become a DBA in the future. I am currently taking a Database class now and studying SQL Server/T-SQL on the side. My experience in IT is limited to managing an Access database at my last employer for two years. What are the chances of landing a junior DBA position after I graduate?

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• What do you think about gems and eggs? Alternatives?

  - by Juanlu001

  I've read recently some criticism (see 1, 2, 3) about the packaging distribution system of two popular programming languages: Ruby gems and Python eggs. The most important argument stated against them is that they replace the system package manager (in case there is one, as in every Linux distribution), which makes eggs and gems difficult to track, code difficult to patch, and so on. Are actually eggs and gems right? In case not, are there any alternatives to distributing Python or Ruby modules? Should developers focus on taking advantage of package manager (apt-get, pacman, ...) capabilities?

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• What is the right level of granularity for code commenting?

  - by Nick

  Commenting in code I believe is very important but recently I've been reviewing code that has left me wondering particular this one. //due to lack of confidence with web programming leaving this note in for now What is the right level of granularity for code commenting? EDIT: Obviously the above comment is shocking hence why I'm asking the question. I've recently noticed the inline comments in the code at my work place annoying. Instead of getting angry I want discovery the acceptable level of granularity for code commenting in the community.

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• Google I/O 2010 - Connect enterprise apps w/ Google Docs

  Google I/O 2010 - Connect enterprise apps w/ Google Docs Google I/O 2010 - Connecting your enterprise applications with Google Docs and Sites Enterprise 201 Eric Bidelman, Vijay Bangaru, Matthew Tonkin (Memeo Inc) Learn how your organization can harness the power of Google Docs and Sites directly from within your existing enterprise systems using our extensive APIs. Integrate with data from behind the firewall using Secure Data Connector. Upload, share, collaborate, and sync any file to Docs. Even automate the creation of project and team workspaces in a single click in Sites from within your CRM. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 18 0 ratings Time: 53:19 More in Science & Technology

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• What's the best language to use for a simple windows 7 dynamic gui desktop app [closed]

  - by Gregor Samsa

  [Note: I hope I am not breaking etiquette, but I originally posted a variant on this question here, but am re-asking here because I am making this now solely a question about programming.] I would like to program of the following simple form: The user can produce X number of resizable frames (analogous to HTML frames). Each frame serves as a simple text editor, which you can type into and save the whole configuration including resized windows and text. The user should be able alternately "freeze" and present the information, and "unfreeze" and edit frames. Thus it will be a cross between a calendar and a text editor. I don't particularly care if it is a web application or not. What languages are ideal for such a setup? I know some C and Python and Html, and am willing to learn others if need be. It seems to me this should be a relatively easy program to make, but I need a little direction before starting. EDIT: My OS is Windows 7.

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• What are Collaboration Data Objects (CDO)?

  - by Pranav

  Collaboration Data Objects or CDO, is a component that enables messaging between applications. It's something like the MFC we have in VC++ that enables us to prefer a simpler interface compared to the WIN32 API which, as an interface, still requires lots of escalation work by developers (yet very robust!). CDO is primarily built to simply the creations of messaging applications and we should keep in mind that CDO is NOT a new messaging model but is BUILT ON the MAPI architecture. It is just an extended interface that collaborates with MAPI and simplifies the programming task at hand for creation of messaging applications. CDO replaced Microsoft's earlier Active Messaging. CDO 1.2 enables us to play around with Data, send, receive emails and a host of other functions like rendering in exchange functionalities into HTML and do loads of other stuff. If you've got some firsthand experiences, a couple of tips will be great and will defiantly further my knowledge base in this area and hopefully get me a more refined understanding. Some pointers on MAPI will be pretty cool.

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• Why is Cocoa using an old version of Unicode? [closed]

  - by Randy Marsh

  While I was searching for something in the Apple docs, I stumble on this: illegalCharacterSet Returns a character set containing values in the category of Non-Characters or that have not yet been defined in version 3.2 of the Unicode standard. On the Unicode website, I find that the latest version is 6.1.0. That's a lot of major versions higher than what Cocoa supports. Does somebody know why Apple doesn't upgrade their framework? My more important question is: Are there problems for not doing having support for Unicode 3.2+? Will I have problems reading Unicode files created on other systems with a more recent version of Unicode?

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• What's the difference between 'killall' and 'pkill'?

  - by jgbelacqua

  After using just plain kill <some_pid> on Unix systems for many years, I learned pkill from a younger Linux-savvy co-worker colleague1. I soon accepted the Linux-way, pgrep-ing and pkill-ing through many days and nights, through slow-downs and race conditions. This was all well and good. But now I see nothing but killall . How-to's seem to only mention killall, and I'm not sure if this is some kind of parallel development, or if killall is a successor to pkill, or something else. It seems to function as more targeted pkill, but I'm sure I'm missing something. Can an Ubuntu/Debian-savvy person explain when (or why) killall should be used, especially if it should be used in preference to pkill (when pkill often seems easier, because I can be sloppier with name matching, at least by default). 1 'colleague' is free upgrade from 'co-worker', so might as well.

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• Design Patterns - do you use them?

  - by seth

  Being an IT student, I was recently given some overview about design patterns by one of our teachers. I understood what they are for but some aspects still keep bugging me. Are they really used by the majority of programmers? Speaking of experience, I've had some troubles while programming, things I could not solve for a while, but google and some hours of research solved my problem. If somewhere in the web I find a way to solve my problem, is this a design pattern? Am I using it? And also, do you (programmers) find yourself looking for patterns (where am I supposed to look btw?) when you start the development? If so, this is certainly a habit that I must start to embrace.

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• How To Use DosBox for Windows 7

  While many modern games use every bit of technology available to give gamers the latest in graphics sound and advanced gameplay some just cannot duplicate the fun that old games used to offer. A lot of fun yet old DOS games will not run on modern computers or operating systems like Windows 7 keeping you from experiencing nostalgic gaming bliss. Thanks to an emulator called DOSBox however you can enjoy many old DOS games on your Windows 7 machines and it does not matter if you are running the 32-bit or 64-bit version of the operating system.... Comcast? Business Class - Official Site Learn About Comcast Small Business Services. Best in Phone, TV & Internet.

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• Oracle ADF Mobile is Now Available!

  - by Michelle Kimihira

  We are happy to announce availability of Oracle ADF Mobile, part of Oracle ADF (Application Development Framework). Oracle ADF is an HTML5 & Java-based framework that enables developers to build and deploy to iOS and Android devices from one application code base. By using open standards like HTML5 for a cross-platform consistent interface and Java for the application logic, companies can readily leverage existing skill and resources to develop mobile applications for iOS and Android.  There’s no need to learn a new platform specific programming language for each device.  With Oracle ADF Mobile -  you simply write once, deploy to many! Read the press release here.     On Wednesday, we will be featuring a blog on developing mobile applications and exploring the different options: Web, Native, or Hybrid. Additional Information Blog: ADF Blog Product Information on OTN: ADF Mobile Product Information on Oracle.com: Oracle Fusion Middleware Follow us on Twitter and Facebook Subscribe to our regular Fusion Middleware Newsletter

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