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• How to publicize new Android's HTTP requests library

  - by Yaniv

  I don't know if this really belongs here, but I developed an open-source HTTP requests library for Android called Unite. This library was built mainly to significantly facilitate the work and coding time, and makes it easy to create and work with HTTP requests. I think a big advantage of this library is that it is open-source, so everyone can contribute to make it even better. I started this project for personal use, and I really like the result. What is the right and proper way to publicize the project, I do think it will be handy to Android developers. So how can I make developers know this library exist?

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• What programming language should I learn for fun?

  - by Bo Milanovich

  Disclaimer: I'm not a programmer, but I do like coding from time to time. This is strictly for fun, nothing else. I'm an economist :) I learned Delphi in the past (7 years ago, forgot 99% of it), BASIC (10 years ago). I now know a bit of PHP. So I want to learn a programming language just so I can kill some time, but it'd be awesome if it would be useful as well. I've narrowed down choices to the following: Python (heard it was easy yet useful, Google's appengine runs on python) Java (awesome because cross-platform and very popular, also I'm an Android fan so I might even develop some apps) Continue learning PHP? (awesome language, I'm a web developer somewhat so it may be useful) Something else? Thanks!

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• Any open source editor to make video games online without programming knowledge?

  - by chelder

  With Scratch we can create video games online, from its web platform, and publish them on the same web. I could download its source code and use it, as many others already did (see Scratch modifications). Unfortunately, we need programming knowledge to use it. Actually, Scratch is mainly for teaching kids to code. I also found editors like Construct 2, GameSalad Creator and many others (just type on Google: create a video game without programming). With those editors we can create video games without coding. Unfortunately they are neither open source nor web platform. They need to be installed on Windows or Mac. Do you know some editor like Construct 2 or GameSalad Creator but open source and executable from a web server? Maybe some HTML5 game engine can do it?

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• Why do some opensouce libraries lack comments?

  - by entropy

  I don't know if this happens to most Opensource libraries, but many of I know and use (for example OpenSSL, Webkit, ...) they all lack comments, or contain very few comments. Not to mention their very few documents, it is hard to read their source code. We can hardly understand what a member variable means, or what this function does. This seems to be against coding standard practice Why is that? How can people collaborate to these opensource with very few comments?

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• What does mathematics have to do with programming?

  - by Rory

  I just started a diploma in software development. Right now we're starting out with basic Java and such (so right from the bottom you might say) - which is fine, I have no programming experience apart from knowing how to do "Hello World" in Java. I keep hearing that mathematics is pertinent to coding, but how is it so? What general examples would show how mathematics and programming go together, or are reliant on one another? I apologize of my question is vague, I'm barely starting to get a rough idea of the kind of world I'm stepping into as a code monkey student...

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• Boat passing under a bridge in a 2D tile based RTS

  - by aleguna

  I'm writing a 2D tile based RTS. And I want to add a 'pseudo 3D' feature to it - bridges over the rivers. I havent't start any coding yet, just trying to think how it fits the collision detection model. A boat passing under the bridge and a unit moving over the bridge will eventually occupy the same cell on the map. How to prement them from colliding? Is there a common approach to solve such a problem? Or I need to implement a 3D world to do this?

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• How to host a simple website using a domain name I own

  - by Cedric Martin

  I'm familiar with hosting webapps when I'm doing "the whole shebang" of installing / configuring / setting up Apache/Tomcat/PostreSQL / "coding" the website myself using HTML / JSP / CSS etc. on dedicated servers I'm renting. But in the above case, I'm "owning" the entire stack: from the Debian GNU/Linux dedicated servers to every single file that is served. Now I'd like to do something much simpler and I must admit I don't know what's involved at all. I'd like to host a simple website made of only a few static pages (no database, no nothing) and I'd like it to be accessible from "example.com". What needs to be technically done to have such a thing? How is the DNS supposed to be set up? Note that I do not want to host this on one of my dedicated servers.

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• How do you update copyright notices?

  - by James

  So now it's 2011, and as I carry on coding on our active projects it's time to update some copyright notices. eg. Copyright Widgets Ltd 2010 to Copyright Widgets Ltd 2010, 2011 My question is when do you update the copyright notices? Do you change the notice in the head of a file the first time you work on that file? Since a module is one piece of code consisting of many files that work together, do you update all notices in that module when you change a single file in that module? Since a program is one piece of code (maybe consisting of many modules), do you update all notices in that program when you change a single file in that program? Or do you just go through and change en-mass over your morning coffee on the grounds your about to start programming and updateing things?

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• NEON Intrinsic Support in CE7

  - by Kate Moss' Open Space

  Just a side note for people who may be interested in creating high performance code to take advantage on NEON instruction set but wish to use NEON intrinsic instaed of coding assembly. Compiler won't generate NEON opcode unless application use the NEON intrinsic explicitly. Basically, you need ARMv7 build enviroment, so compiler can emit NEON opcode. Intrinsic prototype can be found in public\COMMON\sdk\inc\arm_neon.h and that is all you got. If you ever find an NEON opcode does not have corresponding intrinsic, you still need to use the old trick - write that part of code in assembly.

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• Why do people use programming books?

  - by Alex Hope O'Connor

  I find that when someone asks what is the best way to learn how to program, people usually provide them with references to a bunch texts written by various authors. However I don't believe many people at all learn to program from books? I find that they are usually faced with a challenge and then use programming as tool to overcome it. For example I 'got into' programming because I wanted to start a server for a game I was playing, so I googled and read through the support for that particular server and now I am a employed software engineer, using only the skills I developed (and then further developed) by coding C# scripts for a not very popular server package. So my question is, do people generally find it easier to learn from these books? I know I have looked at a few of them and found them far too 'dry' to encourage me to finish it.

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• Free Typescript editor with definition based code completion feature

  - by NagyI

  I know that a plugin for Visual Studio exists. However i can't afford VS so i'm looking for a free alternative which can be used to code TypeScript and aware of the .d.ts definition files and can do code completion based on them. I know that Sublime Text and VIM can do syntax highlighting with the correct language definition file. However the biggest advantage of Typescript for me is that ability to give code assistance while coding. Are you aware of any editor which can do this? I'm interested even if it's in an experimental state.

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• Programming for the iPhone

  - by Bobby Alexander

  Whats the best way to get started on iPhone development if you are an expeienced C++ or C# programmer? Most books either assume you know nothing or something. What are the steps to achieve this? For eg: first learn objective C (let's say), next learn cocoa... I am interested in books/resources. I read Getting started with iPhone development from Oreilly (the missing manuals book) but that just provided an over view on the programming and concentrated more on getting your app into the app store. I need need resources that will help be start coding. Other questions: How much of objective C do you need to know? How do go ahead with learning the cocoa framework? Can I directly start on cocoa touch or do I need to know the MAC cocoa framework first? Inputs from someone who was in the same situation (Know c++/c# but no clue about mac programming/objective c/cocoa) would help greatly.

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• Learning PHP OOP

  - by Ryan Murphy

  I have been coding PHP for about 2 years now and I THINK that I have a very good grasps of the fundamental parts of PHP, i.e. Functions foreach/IF statements sessions/cookies POST/GET Amongst a few others. I want to move on to learning OOP PHP now, so learning how to use classes and making it a really valuable skill. I have 1 requirement, the source must be a respected source that doesn't teach developers bad habits. I have the book: PHP and MySQL Web Development However, as useful as that is I would like an online source. I would like to know from people with experience in OOP PHP, how and where did they learn OOP PHP. Obviously by doing, but I would really appreciate some great resources which help me along the way.

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• Self Welcoming Post on geekswithblogs.net

  - by OscarRibbeck

  Hello!.As you may notice :), this is my first post on geekswithblogs.com . I  have been using the .Net Framework mainly to develop ASP.NET WebApps for some years now and I am moving from using the .Net Framework 2.0 to using the latest features on the 4.x Frameworks, I am planning to document whenever is possible some of the stuff I learn using this space kindly given by the staff of the site. The feedback I get will also be very important for my progress and my plan is to learn a lot from what you guys can teach me with your comments on here.I also found myself with the necessity of putting somewhere code samples because sometimes when you post on forums the entries get locked and you can't do anything to add relevant details on them. The code will either be explained on its entirety or will be posted on a link that has an explained working sample for you guys to test and learn from.My posts will be in English, and I am an intermediate English speaker/writer so bare with me if it's not perfect sometimes, I am always learning something new though.I hope this get to be a useful resource for anyone interested. Cheers and Happy Coding for everyone!,Oscar

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• What are approaches for analyzing the cost-benefits of a development methodology?

  - by Garrett Hall

  There are many development practices (TDD, continuous integration, cowboy-coding), principles (SOLID, layers of abstraction, KISS), and processes (RUP, Scrum, XP, Waterfall). I have learned you can't follow any of these blindly, but have to consider context and ROI (return on investment). My question is: How do you know whether you are getting a good ROI by following a particular methodology? Metrics, guesstimation, experience? Do analytical methods exist? Or is this just the million-dollar question in software engineering that has no answer?

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• Learning Programming, Suggestions for a roadmap

  - by RisingSun

  Hi, Some background first- I am new to programming and have discovered it rather late in life; Like many hobbyists, my introduction to the subject has been through php/jquery (yes, i know the popular mood around here... they-are-not-real-programminng-languages ;-) ). I like to believe that I am reasonably competent at what I do in my other life and this developing addiction to coding has taken a very heavy toll on my professional prospects. This is the question: What programming languages next? (No plans to ditch php in the immediate future, that will involve rewriting much of my code) Any absolutely essential books I must read? Is it necessary to join a college/university course? Do I need to ditch my other profession to continue serious learning? My goals are: Develop a solid understanding of the science and art of programming. Continue to work on my own web application (Hands on learning suits me best) I am something of a generalist interested in everything from UI to database performance

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• Naming conventions used for variables and functions in C

  - by Zel

  While coding a large project in C I came upon a problem. If I keep on writing more code then there will be a time when it will be difficult for me to organize the code. I mean that the naming for functions and variables for different parts of the program may seem to be mixed up. So I was thinking whether there are useful naming conventions that I can use for C variables and functions? Most languages suggest a naming convention. But for C the only thing I have read so far is the names should be descriptive for code readability. EDIT: Examples of some examples of suggested naming conventions: Python's PEP 8 Java Tutorial I read some more naming conventions for java somewhere but couldn't remember where.

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• C: What is a good source to teach standard/basic code conventions to someone newly learning the language ?

  - by shan23

  I'm tutoring someone who can be described as a rank newcomer in C. Understandably, she does not know much about coding conventions generally practiced, and hence all her programs tend to use single letter vars, mismatched spacing/indentation and the like, making it very difficult to read/debug her endeavors. My question is, is there a link/set of guidelines and examples which she can use for adopting basic code conventions ? It should not be too arcane as to scare her off, yet inclusive enough to have the basics covered (so that no one woulc wince looking at the code). Any suggestions ?

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• How to write functionally in a web framework

  - by Kevin Burke

  I love Rich Hickey, Clojure and Haskell and I get it when he talks about functions and the unreliability of side-effecting code. However I work in an environment where nearly all the functions I write have to read from the database, write to the database, make HTTP requests, decrement a user's balance, modify a frontend HTML component based on a click action, return different results based on the URI or the POST body. We also use PHP for the frontend, which is littered with functions like parse_str(), which modifies an object in place. All of these are side-effecting to one degree or another. Given these constraints and the side-effecting nature of the logic I'm coding, what can I do to make my code more reliable and function-able?

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• Online examples for software design diagrams

  - by Gerenuk

  Do you know where I can find a good example of software design diagrams and specs on the internet? Like UML, specs and similar. I'd like to understand this approach better. Before I just started coding and now I'd like plan more in advance. By diagrams I don't mean made-up examples, but something that would actually be used. Also it shouldn't be so trivial that there is no use of using diagrams. Ideally it shouldn't be too large either. Do you know a good online source? (this question is about online resources and specific examples only. it is not asking about books or advise how to learn software design.)

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• How can I change the wallpaper using a Python script?

  - by furtelwart

  I want to change my wallpaper in Ubuntu 11.10 (with Unity) in a small Python script. I found the possibility to change it via the gconf-editor in /desktop/gnome/background/picture_filename. With python-gconf, I'm able to change the necessary values. Apparently, the gconf string is not read out. If I change it (either via a script or via gconf-editor), the wallpaper remains and in the menu of "Change wallpaper", the old wallpaper is shown. How am I able to change the wallpaper for Unity via a Python script? The following code does work. Apparently, the gsettings are only applied, if some Gtk code is executed. #!/usr/bin/python # -*- coding: utf-8 -*- from gi.repository import Gtk, Gio class BackgroundChanger(): SCHEMA = 'org.gnome.desktop.background' KEY = 'picture-uri' def change_background(self, filename): gsettings = Gio.Settings.new(self.SCHEMA) print(gsettings.get_string(self.KEY)) print(gsettings.set_string(self.KEY, "file://" + filename)) Gtk.Window() print(gsettings.get_string(self.KEY)) if __name__ == "__main__": BackgroundChanger().change_background("/home/user/existing.jpg")

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• Why should I adopt MVC?

  - by Andrew

  I decided to get my hands wet and got the YII framework for PHP. I created my first application, then created new controller, model and view. Connected to database, got my record passed from controller to the view and printed the hello world. I am confused now. If I have to do the same thing for each page, this seems like a nightmare to me. In each controller I have to do a lot of same operations - declare variables, and pass them to views. I also need to create models for each page and this is all confusing to me. In my idea the main goal of development is to avoid duplication, but what I see here is lots and lots of duplicated code. Please advise and clarify. Maybe you could suggest a good reading about MVC and coding patterns and best practices in MVC. Because so far, it takes much more time to create a small site using MVC than using my own programming schema.

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• constructor should not call methods

  - by Stefano Borini

  I described to a colleague why a constructor calling a method is an antipattern. example (in my rusty C++) class C { public : C(int foo); void setFoo(int foo); private: int foo; } C::C(int foo) { setFoo(foo); } void C::setFoo(int foo) { this->foo = foo } I would like to motivate better this fact through your additional contribute. If you have examples, book references, blog pages, or names of principles, they would be very welcome. Edit: I'm talking in general, but we are coding in python.

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• Where to train while earning to be a Web Programmer

  - by user3295525

  Good day everyone. I'm a fresh graduate of Bachelor of Science in Computer Science and I really love coding in web. But my skills are not that high that's why I want to train while earning in a company but there are so few companies that offer it here. Web Programming is a passion for me and i really love it that's why i want to enhance my skills for my self and for the benefit of the company that will hire me. Do you have any suggestions or recommendations that I can use because I really need a mentor cause my self studying is in limit now. Good day everyone and God bless. P.S. I really love web programming.

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• Which specific practices could be called "software craftsmanship" rather than "software engineering"?

  - by FinnNk

  Although not a new idea there seems to have been a big increase in the interest in software craftsmanship over the last couple of years (notably the often recommended book Clean Code's full title is Clean Code: A Handbook of Agile Software Craftsmanship). Personally I see software craftsmanship as good software engineering with an added interest in ensuring that the end result is a joy to work with (both as an end user and as someone maintaining that software) - and also that its focus is more at the coding level of things than the higher level process things. To draw an analogy - there were lots of buildings constructed in the 50s and 60s in a very modern style which took very little account of the people who would be living in them or how those buildings would age over time. Many of those buildings rapidly developed into slums or have been demolished long before their expected lifespans. I'm sure most developers with a few years under their belts will have experienced similar codebases. What are the specific things that a software craftsman might do that a software engineer (possibly a bad one) might not?

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