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• How do I change the keyboard layout to a non-standard one on a Live (USB) session?

  - by Agmenor

  I am running Ubuntu 13.04 in a Live (USB) session. My physical keyboard layout is called Bépo, it is the French language Dvorak method-based layout. I would like to change my input layout to this too. To do this, I tried booting in a French spoken session, then open the Keyboard Layout preferences app. Normally, to add a layout, you should click on the + sign and select your layout. However the list that appears is very short and does not contain what I want. On the contrary, on a persistent non-live installation, the choice of Bépo is present. This is also the case during an installation of Ubuntu. So I do I change the keyboard layout of my live session to the correct one?

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• Why would I want to use CRaSH?

  - by Adam Tannon

  Justed stumbled across CRaSH and although it looks mighty interesting, I'm wondering why a Java developer should invest time & energy into learning (yet another) shell language. What sort of standard- and cool-applications can CRaSH be used for? Is this like a Groovy-version of Jython? I guess, when the dust settles, I'm looking for CRaSH's "wow" factors. I'm sure they're there, but after spending ~20 minutes perusing the documentation I'm just not seeing them. Thanks in advance!

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• Looking for "New" Java Developers for Java Magazine!

  - by oracletechnet

  Want to be "almost famous"? For the March/April 2012 issue of Java Magazine, we need interview candidates for a cover story tentatively entitled "The New Java Developers". For each candidate selected, we will publish a short bio/profile and photo. What's the catch? You must be between 18 and 25 years of age and, naturally, passionate about Java technology! Here are some other prerequisites: - Willingness to be interviewed and photographed for worldwide publication- English-language proficiency- Students or professionals are OK Extra points for: - Women. We want to bring more women into IT!- Residents of countries with fast-growing developer populations If you are a candidate or know of a candidate, please drop an email with your CV to javamag_us AT oracle.com. This could be your big break in the biz!

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• Education path advice

  - by Miroslav Zadravec

  I'm thinking of continuing my education and going for masters degree. I must decide between two programs. One is CS/IT and focuses on algorithms, math, multimedia, web technologies with optional interesting courses like AI and robotics. Second is about business process management, software architecture and project management. I have some experience in business software and I must say, I never though I need deeper understating of algorithms or program language but I always felt that I'm lacking in project planing or management knowledge. On the other side, CS/IT looks more interesting but what are the chances to find a job that require such skills?

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• Why use C++ when C works for large projects equally well?

  - by Karl

  Before I start, please DO NOT make this into a C vs C++ flamewar. This question has nothing to do with which language is better or not. Period. I have read that C++ is said to be fit for large projects. After all, it makes managing code easier. OO and other features, for example the STL. But then why use C++ when C works equally well for large projects? Take the example of the Linux kernel. Or GNOME. Or even Windows I guess, it is written in C right? So why bother at all with the complexity of C++ (templates and all that), when C works well and this is not just a statement, but proper examples have been quoted. If it works for projects of magnitude of the kernel, why is C++ preferred or why is C not used for almost all projects?

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• Documentation vs tutorials vs video tutorials - which one's better?

  - by Cat

  As a developer/software engineer, what would you say are the most helpful resources when attempting to learn and use a new system? If you had to integrate a new SDK into your codebase/application, which one of the following options would you much rather go with? documentation tutorials video tutorials Same question for learning a new framework (e.g. writing an iOS app, learning Python, integrating the Android SDK, etc.). I'm not referring to becoming an expert, just get to know enough to use a system/language/framework properly. This is a pretty general question, but I think it's very relevant to anyone who's doing engineering work, since learning how to use new systems quickly is a very important skill to have. Thank you!

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• game engine done, ideas missing

  - by Thoms

  I read at many places how people have this GREAT ideas but are not able to program themselves. I have quite the opposite problem. I have developed game engine, level editor, embedded Lua scripting language, I have even made wrapper for Android and it all works well. But I have no good idea about how to proceed with actual levels; I have no good ideas. The engine itself is very generic and can be used in many game concepts, but I just cannot think of anything useful. Do you have any thoughts on how to proceed? Where should I seek ideas? Who should I ask? I am sorry if this question is a duplicate.

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• Google ouvre son outil de visualisation des données statistiques au public : premier pas vers un BI en mode Cloud ?

  Google ouvre son outil de visualisation des données statistiques au public Premier pas vers un BI en mode Cloud ? Google vient de mettre à la disposition de tous son outil d'analyse derrière sa solution « Public Data Explorer ». Pour mémoire Google Public Data Explorer est un service en ligne lancé en mars 2010 par Google Labs. Il permet de visualiser des données statistiques mondiales, sous différentes représentations graphique. On y retrouve par exemple des données de la banque mondiale ou encore celle d'Eurostat. Le nouveau format de données Google Dataset Publishing Language (DSPL) basé sur le format XML, développé par Google Labs et utilisé par Public Data Explorer, fo...

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• Getting data from a webpage in a stable and efficient way

  - by Mike Heremans

  Recently I've learned that using a regex to parse the HTML of a website to get the data you need isn't the best course of action. So my question is simple: What then, is the best / most efficient and a generally stable way to get this data? I should note that: There are no API's There is no other source where I can get the data from (no databases, feeds and such) There is no access to the source files. (Data from public websites) Let's say the data is normal text, displayed in a table in a html page I'm currently using python for my project but a language independent solution/tips would be nice. As a side question: How would you go about it when the webpage is constructed by Ajax calls?

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• What Java class should I use to represent a Vector?

  - by user8363

  Does Java have a built-in Vector class suitable for handling collision detection / response? It should have methods like subtract(Vector v), normalize(), dotProduct(Vector v), ... It seems logical to use java.awt.Rectangle and java.awt.Polygon to calculate collisions. Would I be right to use these classes for this purpose? I understand collision detection; I'm only wondering what approach to it is idiomatic in Java. I'm new to the language and to application development in general.

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• How do I download a corrupted package again?

  - by user64720

  Ubuntu 12.04 can't install Firefox 13 update, because the package is corrupted. While attempting to install, returns this error (I translated it from my language to English). /var/cache/apt/archives/firefox_13.0+build1-0ubuntu0.12.04.1_i386.deb W: Waited for dpkg --assert-multi-arch but was not there - dpkgGo (10: There are no "child" processes). I can tell that the package at /var/cache/apt/archives/firefox_13.0+build1-0ubuntu0.12.04.1_i386.deb is corrupted, but even as admin, I can't delete it in order to be downloaded again. How should I proceed? EDIT: There was a single package causing this conflict, please report here to understand all the situation: Why can't I install from software center?

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• doing a full permutation search and replace on a string

  - by user73307

  I'm writing an app that does something like a custom number (licence) place generator tool where if I ask for the plate "robin" it will suggest I try: r0bin rob1n r0b1n Are there any published algorithms which can do this? It has to be able to handle replacing single letters with multiples, e.g. m with rn and vise-versa and not fall over if it replaces an i with an l then comes to check the l and replaces it back to an i. The list of what gets swapped with what is going to be user input but I'm not expecting a huge list, possibly 10 pairs at most. I'll be implementing this in Ruby or Python but I should be able to convert code from any other language.

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• Interviews that include Algorithms and Data Structures

  - by EricFromSouthPark

  I want to start looking for jobs in great companies and I have four years of enterprise corporations development, three years with C#.NET and alomst one year with Ruby On Rails, JS, etc... But when I look up interview questions from Google, Amazon, Fog Creek, DropBox, etc... they are really targeted at students that are coming fresh out of college and still remember what was Dynamic Programming and Dijkstra algorithms ... but I don't! :( It has been a while for me ... If a I need a sort algorithm I would either Google it or there already is a library and method that does it for me. So what should I do? Do they realize that this guy is not coming from college and will ask more general questions about software architecture or nop! I should go back find my old Data structures book from the storage and read them? In that case wht books and language do you recommend to hone my skills?

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• Choix technologique : Spring 3.0 ou Java EE 6 pour vos projets Java en 2010 ?

  Fin 2009, ce sont deux solutions très attendues qui ont finalement été livrées : D'un coté Spring 3.0, framework déjà fort utilisé en entreprise, et qui arrive avec quelques nouveautés : Support de Rest, Expression Language, .. Principal atout : Il est déjà utilisable sur des serveurs omniprésents en production (Tomcat, Websphere 6.1,..) De l'autre coté, Java EE 6. Un nouvelle version du standard, beaucoup plus légère et souple que les anciennes versions. Il propose également un profil Web, qui propose des fonctionnalités fort similaire à ce qui est proposé par Spring (EJB Lite, Injection de dépendances, ..). Pour l'heure, la seule implémentation disponible est Glassfish. De votre coté, quelle solution utilise...

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• Dart Package Management with Pub

  Dart Package Management with Pub Pub is the package manager for Dart. With pub, you can manage libraries and dependencies for your Dart apps. This video shows you an early preview of pub and gives a demo of a Dart app with 3rd party libraries installed by the pub command line. Dart is a new structured web programming language, libraries, and virtual machine. Dart works across the modern web, thanks to its Dart to JavaScript compiler. You can try Dart, and pub, today at www.dartlang.org From: GoogleDevelopers Views: 2 0 ratings Time: 03:47 More in Science & Technology

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• Blueprints API for Oracle NoSQL Database

  - by Charles Lamb

  Here's an implementation of the Blueprints API for Oracle NoSQL Database. https://github.com/dwmclary/blueprints-oracle-nosqldb Blueprints is a collection of interfaces, implementations, ouplementations, and test suites for the property graph data model. Blueprints is analogous to the JDBC, but for graph databases. As such, it provides a common set of interfaces to allow developers to plug-and-play their graph database backend. Moreover, software written atop Blueprints works over all Blueprints-enabled graph databases. Within the TinkerPop software stack, Blueprints serves as the foundational technology for: Pipes: A lazy, data flow framework Gremlin: A graph traversal language Frames: An object-to-graph mapper Furnace: A graph algorithms package Rexster: A graph server

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• Where to contribute a Mozilla Persona example?

  - by Serg

  I found out about Mozilla Persona today and fell in love with it completely. It really does feel like the future of account management. For the first time ever, I actually want to contribute to open source because I believe in this tech. I wrote a simple ASP.Net MVC3 demo web application showing how to login and logout users using Persona. I want devs in my language ecosystem to have a simple time learning about this by reading example code. Here is the repository: https://github.com/sergiotapia/ASP.Net-MVC3-Persona-Demo Where do I contribute this link to my repository so it's easily found? Any suggestions? It's my first time releasing code for a "big project" so to speak.

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• Trying to learn ASP.net

  - by sipl

  Hi There, I have a background in computers and had done programming some seven years ago. Switched to becoming a technical writer (oops!). And now think I should jump ship again, back to being a programmer. Of course the natural course of action where I can spend say two whole years learning to code, might not be available any more. I am keen on ASP.net as its the language that most products at my company are written in. I am sure this has been asked before, but here I go... where do I begin? Would really appreciate some practical advise. Thanks, SA

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• How to install an additional .NET library?

  - by Deusdies

  I'm a beginner .NET programmer (C# and IronPython). I've come across WatiN .NET library which will show handy for what I'm trying to do. The website claims that it is compatible with any .NET language, so I assume it's compatible with IronPython as well. How do I go about installing it? Their website only has some instructions, using NUget in Visual Studio. I neither use Visual Studio nor am I interested in it. How and where would I put the downloaded files in order to make it work with IronPython?

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• What software programming languages were used by the Soviet Union's space program?

  - by shamp00

  I got interested in the Soviet space program and was interested to discover that the software on the Buran spacecraft circa 1988 was written in Prolog. Does anyone know what languages might have been used in earlier missions, especially the Mars PrOP-M rover missions of the early 1970s which were somewhat autonomous and could navigate obstacles? Edit My source for the Buran Prolog is this declassified document from the CIA site from May 1990. I couldn't find an OCR version, so here's the relevant quote from p. 0449: According to open-source literature, the Soviets used the French-developed programming language known as Prolog to develop on-board system software for the Buran vehicle...

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• TypeScript for Visual Studio 2012

  - by TATWORTH

  Originally posted on: http://geekswithblogs.net/TATWORTH/archive/2013/06/21/typescript-for-visual-studio-2012.aspxAt http://www.microsoft.com/en-us/download/details.aspx?id=34790, Microsoft provide a free download of TypeScript for Visual Studio 2012. The documentation site is at http://www.typescriptlang.org/It is described as TypeScript is a language for application-scale JavaScript development.TypeScript is a typed superset of JavaScript that compiles to plain JavaScript.Any browser. Any host. Any OS. Open Source.TypeScript starts from the syntax and semantics that millions of JavaScript developers know today.TypeScript compiles to clean, simple JavaScript code which runs on any browser, in Node.js, or in any other ES3-compatible environment.With TypeScript, you can use existing JavaScript code, incorporate popular JavaScript libraries, and be called from other JavaScript code.These features are available at development time for high-confidence application development, but are compiled into simple JavaScript.If you have written JavaScript, you will know why I welcome the release of version 0.9 of TypeScript as TypeScript should be a lot less frustrating to write. I suggest you go to https://typescript.codeplex.com/ and follow this very promising project.

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• Which java game engine is better? [closed]

  - by user1276078

  I'm new to mobile game development and I have a number of questions to ask. So if you could please answer them, it would be highly appreciated The game I'm trying to release is a 2D arcade game. My intention is to release it on both the iOS platform and the Android platform. My best language is Java, so I would like to use a game engine where I can code with that. Which game engine is the best to accomplish all of this? I know that to make an iOS game with Xcode you need to use a Mac. My question is, do you still need a Mac if you're making a game for iOS without Xcode (like with OpenGL or something Thank you in advance

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• Is Oracle a threat to Java? [closed]

  - by Deadlocked_Thread

  Java is one of the best language, but after Oracle has bought Sun it might try to go for some standardization (Like MS) and it might take Java away from programmers. Java is popular because it has no limits and i think Oracle is gonna set the limits to get some standards. Oracle is no longer supporting Eclipse (IBM) and political game is being played be both camps: 1. What is the future of Java? 2. Do you think it will be in same class as .NET family (C# etc.)? 3. Will MS get benefits from this internal fight?

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• Are VM-based languages becoming viable for Graphics since the move to GPU computing?

  - by skiwi

  Perhaps the title is not the most clear, so let me elaborate it more: I am talking about VM-based languages, by that I mean languages that run on the JVM (java) and for example C#. Also I am talking about 3D graphics, just to be clear. Lately the trend has been that most computing is being done on the GPU and not on the CPU, and since times the issue with programming games on a VM-based language is that garbage collecting may happen randomly. So let's take a look which is responsible for what: Showing the graphics: GPU Uploading graphics to the GPU: CPU? Needs to be done every frame? Calculating physics constraints: GPU Doing the real game logic (Determining when to move objects (independent of physics calculations), processing AI): CPU Is my list actually correct? And if it is, is for example Java becoming more viable? Or is uploading the graphics (vertices) still the most expensive operation? Would like to get more insight into this.

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• Developing GLSL Shaders?

  - by skln

  I want to create shaders but I need a tool to create and see the visual result before I put them into my game. As to determine if there is something wrong with my game or if it's something with the shader I created. I've looked at some like Render Monkey and OpenGL Shader Designer from what I recall of Render Monkey it had a way to define your own attributes (now as "in" for vertex shaders = 330) easily though I can't remember to what extent. Shader Designer requires a plugin that I didn't even bother to look at creating cause it's an external process and plugin. Are there any tools out there that support a scripting language and I could easily provide specific input such as float movement = sin(elapsedTime()); and then define in float movement; in the vertex shader ? It'd be cool if anyone could share how they develop shaders, if they just code away and then plug it into their game hoping to get the result they wanted.

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