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• Games with user-supplied artifical intelligence (AI) engines?

  - by RoboShop

  I remember Microsoft used to have this AI game for the .NET framework which allowed you to program a species and this species could be introduced to an "ecosystem" full of species that other people had programmed and they could interact with each other, etc. I can't remember what it was called, but I remembered thinking it was a pretty good idea. Are there any other similiar sites like that, which allows you to design some sort of AI engine and pit it against other programmer's creations? It could be an ecosystem type thing, or it could be a card or board game.

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• Are there Any Concerns with Importing Document Files From a Competing Product?

  - by Thunderforge

  I have a new product that serves the same purpose as my competitor's long-standing product. One thing I have considered doing is allowing my program to import document files created by their product in order to provide an easy way for users to migrate towards mine. Naturally, this would be done without the competitor's permission, as it goes against their interests. I've seen this done before with office suite software (e.g. Open Office and Apple Pages can import MS Word documents), but I'm wondering if there are any concerns, legal or ethical, with me doing this. I fully expect any answers will most likely fall under the "I am not a lawyer" clause, but it would be helpful to have a starting point for anything I would need to be aware of, or if I shouldn't need to worry.

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• Pattern for loading and handling resources

  - by Enoon

  Many times there is the need to load external resources into the program, may they be graphics, audio samples or text strings. Is there a patten for handling the loading and the handling of such resources? For example: should I have a class that loads all the data and then call it everytime I need the data? As in: GraphicsHandler.instance().loadAllData() ...//and then later: draw(x,y, GraphicsHandler.instance().getData(WATER_IMAGE)) //or maybe draw(x,y, GraphicsHandler.instance().WATER_IMAGE) Or should I assign each resource to the class where it belongs? As in (for example, in a game): Graphics g = GraphicsLoader.load(CHAR01); Character c = new Character(..., g); ... c.draw(); Generally speaking which of these two is the more robust solution? GraphicsHandler.instance().getData(WATER_IMAGE) //or GraphicsHandler.instance().WATER_IMAGE //a constant reference

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• Weird keyboard problem

  - by Sebastian

  I just installed Ubuntu on an Acer Extensa 5620 laptop. The keyboard works fine except when I want to type things that require me to use Ctrl+Alt+(any key). I can't use Ctrl+Alt+(any key) shortcuts in any program, but I can open terminal with Ctrl+Alt+T. Ctrl+(any key) and Alt+(any key) shortcuts seems to work though. Also I just installed the game Heroes of Newerth and neither Alt or Ctrl keys seem to work in the game. Any answer would be appreciated!

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• My wireless connection isn't working well

  - by Maikel Braas

  So this is my problem, I intalled ubuntu 12.04 with the wubi.exe and everything works fine, but my internet connection. When I try to install a program or use firefox, it goes with 24kb/s with a little luck for 1-2 seconds and then my internet terminates and it starts up again after 3-5 mins. Then it goes with an other 24kb/s and this will repeat. The thing is my connection works perfectly with windows. The laptop its running on is a Acer ASPIRE V3-771G. I tryed using a different network adaptor but that didn't help either. Please, some one help me with this. friendly regards, Maikel

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• Technical Article: Experimenting with Java Timers

  - by Tori Wieldt

  OTN's new tech article is "Experimenting with Java Timers" by T. Lamine Ba. This article studies time—how Java handles timers and the scheduling of tasks. Java timers are utilities that let you execute threads or tasks at a predetermined future time, and these tasks can be repeated according to a set frequency. The article starts with a simple "Hello World" program in a web application that's composed of JavaServer Pages (JSP) and uses the model-control-view (MVC) design pattern. The IDE used in this article is NetBeans IDE 7.1, but you can use any IDE that supports Java. "Experimenting with Java Timers" demonstrates how to get started scheduling jobs with Java. To learn about Swing timers, check out the Java tutorial "How to Use Swing Timers" and additional information in the Java Platform, Standard Edition 7 API Specification for Class Timer. 

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• Criteria for a language to be considered "object oriented"

  - by nist

  I had a discussion about OO programming today and by browsing the internet I found a lot of different specifications for object oriented languages. What are the requirements for a language to be object oriented? For myself an object oriented language must have classes, inheritance and encapsulation. Is C an object oriented language just because you can use structs and program with an object oriented design? Why/ why not? Are there any good sites/articles about this? And please, no Wikipedia links because I've already been there.

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• Partner Milestones

  - by Kristin Rose

  Ahhh the joys of success especially during graduation time…It’s the same joy we feel when one of our partners reaches an Oracle milestone. After all, we want to help partners gain maximum exposure for their hard work and achievements. How you ask? Through streamlined press releases and social media exposure of course! So whether you just completed a Specialization or an Oracle Exastack program achievement, we want to help you share that news  both near and far. Be sure to check out the key PR assets that are available to you, which include: Easy to follow guidelines to help you create and promote your OPN successes – as well as how to submit your press release to Oracle for review OPN press release templates to help develop your announcements OPN’s social media outlets where you can further promote and share your news Contact information for your global Oracle Partner PR representatives Take advantage of these invaluable resources and “Go Get ‘Em,”The OPN Communications Team

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• Reading the memory of a N64

  - by toazron1

  I'm looking for a way to read the memory of a N64, while the game is running, in real time. I have a c# program which hooks into the memory of a running emulator and tracks SSB64 stats. I want to do the same thing with the physical N64. Currently it is possible to read the memory with a gameshark pro, however it's extremely slow, buggy, and not practical for what I am trying to accomplish. Would it be possible to tap into the gameshark, or the N64 directly, to access the memory in real time? Thanks!

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• Mimicking a bluetooth disconnection

  - by user2529672

  I've written a program to control a bluetooth device. I'm trying to test cases when the bluetooth disconnects, i.e. if its out of range. Physically taking the device out of range is one possibility, but its quite cumbersome and I have to go outside my office to achieve this. What can I do to trigger a disconnection? Is there, for example, an interferer I can setup, say with an Android phone, that would make the connection drop? Or limit the Bluetooth transmit power? Any other possibilities?

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• Flowchart with subroutine

  - by Jordy

  I am not really sure how to correctly describe my question, so please forgive me if this is a duplicate. I am creating a flowchart for my program where I implement a method. Let's assume I call this method someMethod. The C code could look something like this: bool someMethod(int Foo, int Bar) { foo += 5; bar -= 5; return (foo == bar); } This means that my flowchart will have a subroutine block where I call this function. But how do I correctly show the reader which integers I pass? And when I create the flowchart of "someMethod", I face a similar problem: how do I correctly show the reader that Foo and Bar are passed parameters?

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• Exadata, Exalogic and Exalytics Partner Demo Equipment Purchase Initiative

  - by Cinzia Mascanzoni

  Oracle is pleased to announce that as part of the Demo Equipment Purchase Program, until December 31, 2012, Oracle VADs may purchase Exadata, Exalogic and Exalytics configurations, for their own demonstration purposes or to distribute to a partner for the partner's demonstration use, at 25% off the list price. In addition, purchasing partners will be eligible to receive 10% of list price (excluding support) in MDF funds to support the partner's Exadata/Exalogic/Exalytics demand generation activities. New units must be used for demo purposes for a minimum of 6 months before they may be resold to an end user. For more info, visit the VAD Resource center here.

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• how to get sapi to say 1 word from a list of words

  - by mvaughn

  I am writing a program for a spelling test in vb 2010. I have 20 input textboxes for the user to spell the words as sapi says them. My question is ! How do I get sapi to say a word from a multiline textbox then pause and give the focus to the 1st textbox so the user can type it and give them 30 sec then sapi will say the next word then give focus to the 2nd textbox so user can type and give them 30 secs to type the word. Then sapi will say 3rd word the user will get 30 secs to type the word all the way to 20 words then the test will be done. I have 1 multiline textbox that holds 20 words

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• From the Coalface - 2 - Work as hard as you can to be as lazy as you can

  - by TATWORTH

  On one project, the standard build involved building the database from scratch producing a build log that was about 100,000 lines long.  Manually paging throught this log took hours and it was very easy to miss any errors. The solution was to write a filter that read the log file and output a summary file with each output line pepended with the line number in the original file. Sucessive iterations eliminated more noise lines. Diagnostic displays required escaping. The final output was just a few hundred lines long and the errors were easy to spot. The filter program took less time to to write than one manual pass reading the log file.  The utility digested the log file in about 1 second. Now database build errors could be identified quickly instead of after hours of manual examination or lengthy system testing. A few minutes consideration of the task led to a tremendous improvement in quality.

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• What are you using the debugger for? [closed]

  - by Peter Gfader

  Some scenarios that I can think of: Reading/Understanding code Understanding the flow (what happens when) Stop program and see where it is up to a. Attach debugger b. Exception -- Debug Discover API Run to breakpoint and verify state The question got closed on SO, so I ask here... http://stackoverflow.com/questions/6462461/what-do-you-use-the-debugger-for What are you using the debugger for? Which scenario did you ran into, that you needed the debugger? Could you have done it differently?

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• Safest way (i.e. HTTPS, POST, PGP) to send decryption keys through the web?

  - by theGreenCabbage

  I am in the final stages of development for my Revit plugin. This plugin is programmed in C#, and distributed via a DLL. One of the DLLs is an encrypted SQLite database (with proprietary data) that is in the form of a DLL. Currently, in development stages, the decryption key for the SQLite database is hardcoded in my main DLL (the program's DLL). For distribution, since DLLs are easily decompilable, I am in need of a new method to decrypt the DLL. My solution is to send our decryption keys from our servers securely to the host's computer. I was looking in POST, thinking it was more secure than GET, but upon research, it appears it's similarly insecure, only more "obscure" than GET. I also looked into HTTPS, but Hostgator requires extra money for HTTPS use. I am in need of some advice - are there any custom solutions I can do to implement this?

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• C++ linkage error . What am I doing wrong ? [migrated]

  - by nashmaniac

  So, this is the first time I actually separated a single program into a header and two .cpp files . But I think I am getting an linkage error . Heres how the directory looks . (heres a link to my image I dont have enough rep to post image in the question) http://i.stack.imgur.com/sbT4V.png The main.cpp is my main source file where all the calling functions and other important stuff goes . In functions.cpp I have all my functions , in the coordin.h file I have the function prototypes and structures and Constants . Everything is ok no typo nothing I have checked everything . But I am getting an undefined reference to function error. I have included the coordin.h file too . Do you think the functions.cpp file needs to go somewhere else I mean is the compiler not looking inside that file ? Thanks !

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• Fast language for problem solving? [closed]

  - by Friend of Kim

  I learned PHP to make websites. After some years I've started using programming for solving what is difficult tasks for my level. Now I want to make a program that solves equations. (I want to write it myself, not use an API. Because I'm doing this for the sake of the challenge, not for the result..) Because of this, I'm going to learn a new and faster/better language. It's going to be C++, Java, Python or C#. What are the benefits of each language, and which language is best for speed compared to speed of writing and readability? Using C would be lightning fast, but the lack of OO is making for more complex code and reduces the readability, for example..

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• How to remove package in bad state, software center freezes, no synaptic

  - by GothicMonster

  When 'Update Manager' starts running, it tells me that I need to do a 'Partial Upgrade', when I start doing the upgrade, it tells me "Remove package in bad state The package 'linux-headers-3.0.0-19' is in an inconsistent state and needs to be reinstalled, but no archive can be found for it. Do you want to remove this package now to continue?" When I click 'Yes' the program just closes. I have tried to go into the software center and reinstall the 'linux-headers-3.0.0-19' ubuntu software center just freezes. Right now I cannot run 'Synaptic', or remove any software. Please help!

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• Why CoffeeScript is an issue

  - by Renso

  Other than some obvious concerns, my main concern is support in the open source community. "anon" from the CoffeeScript team sent this to me after I requested input from the team to concerns I raised and wanted to get others' take on it:"Thanks for confirming that only idiots willingly program in Java and C#"or the following from the same person:"Oh and finally, you should definitely create jShort. Even though I know you will fail before you even start, I would love to laugh at your attempts and it would be perfect for you since you ride the short bus. "This kind of comment reflects badly on the CoffeeScript team and hence not an option for us as a company to consider. Another example of why some open-source community projects get no traction.

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• Can I use my VirtualBox 3.* VMs with VirtualBox 4.0? If so, how come the repository doesn't have it?

  - by ximbim

  I had the following repository for virtualbox in my /etc/apt/sources.list: deb ttp://download.virtualbox.org/virtualbox/debian maverick non-free Then I found out there was a new version when I opened it today (the program prompted me with a window to manually download it from Oracle's site). Then I tried sudo apt-get update && sudo apt-get upgrade and got nothing. Here you have a way to add virtualbox-4.0 to your apt-get, but the problem is that it isn't updating, meaning I would have the two installed. I'm also worried if I'll have to do something like that each time it updates since that would defeat the point of apt-get. I've been using virtualbox with the apt-get update for more than a year now and this is the first time it has happened, so I was wondering if there would be a way to just update my current installation.

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• How To Sideload Modern Apps on Windows 8

  - by Chris Hoffman

  The average Windows 8 user can only download apps that Microsoft has approved from the Windows Store. Windows 8 offers two ways to sideload unapproved apps, which are intended for developers and businesses with internal apps. These methods cannot be used by the average geek to install unapproved apps from the web. Windows 8’s new interface takes the Apple iOS approach of forbidding unapproved software, not the Android approach of allowing all users to enable sideloading. Note: This only applies to Modern apps in the new Windows 8 interface, not on the desktop. Windows desktop applications can be installed normally. However, you can’t install any desktop applications on devices running Windows RT. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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• How secure is KeePassX?

  - by Uli

  I have hundreds of passwords, since I use a different random one for each website/service. They are all generated & stored with KeePassX, which can be synced to different computers and my android phone via dropbox (or ubuntuone). I know the database of KeePassX is secure (at least with a good passphrase). But what about when I am copying the password into the clipboard (where it is stored for 5 seconds)? Can any program running in user-space access the clipboard and store the password? If so, how big of a security risk is this?

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• Moving from an IT department to a proper technology company

  - by user2434

  I have been working with Java/web applications in an IT department of a retail company. As much as work goes, there is nothing much to say. Fixing couple of if/else loops, writing some simple business logic etc., is all what I have been doing. Having said that, I feel I have a good technical knowledge, and I am willing to move to companies like Microsoft/Google/Amazon etc., [I want to work in these places, because I feel I am a technical guy, and I am working in a place where most people freak out when the words like 'algorithm' are heard] I can of course prepare algorithms/computer science fundamentals etc.,(I hold a 4 year degree in computer science program) but beyond that, will my experience hold against me ? I doubt I'll even get a call from them seeing my work experience. What kind of questions(apart from the algorithm types) can I expect ?

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• Should students have the right to do exams using a computer?

  - by vemv

  In some colleges students are let to use an IDE and Internet and in mine you have to write down your solution in paper. As far as I know, it's pretty much impossible to make a correct non-trivial program on the first try. I'd be fine with no using computers if my teachers assessed my approach instead my code -literally-... that's not the case unfortunately. Which ones are more usual, 'written' or 'coded' exams? And which way is the most adequate?

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