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• Will Java or C# be a better career choice for the future? [closed]

  - by learner_17

  I am in a tough situation here,and i know this question has been asked a thousand times.I have been asked by an employer to switch to java ,although i am currently working on c# for the last 3-4 months. my dilemna is should i go for it? is java tough?and if i go whats the best way to learn java. And if I dont switch how do i sharpen my c# skills - or should is say my whole grip over the entire .net framework.

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• Two HTML elements with same id attribute: How bad is it really?

  - by danludwig

  Just browsing the google maps source code. In their header, they have 2 divs with id="search" one contains the other, and also has jstrack="1" attribute. There is a form separating them like so: <div id="search" jstrack="1"> <form action="/maps" id="...rest isn't important"> ... <div id="search">... Since this is google, I'm assuming it's not a mistake. So how bad can it really be to violate this rule? As long as you are careful in your css and dom selection, why not reuse id's like classes? Does anyone do this on purpose, and if so, why?

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• update(100) behaves slightly different than 10 times update(10) - is that a problem? [on hold]

  - by futlib

  While looking into some test failures, I've identified an curious issue with my update logic. This: game.update(100); Behaves slightly different from: for (int i = 0; i < 10; i++) game.update(10); The concrete example here is a rotating entity. It rotates by exactly 360 degrees in the first case, but only by about 352 in the second. This leads to slight variations in how things move, depending on the frame rate. Not enough to be noticeable in practice, but I did notice it when writing tests. Now my question is: Should this be fully deterministic, i.e. the outcome of update(1) * n should equal update(n) exactly? Or is it normal to have some variance and I should make my test assertions more generous?

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• Showing range on hexagonal grid

  - by user23673

  Here is the situation. I have hexagonal board,and a unit on it,with speed or move value 4.Diffrent terrain has a diffrent cost.When i click on the unit,game should show me a move range. My solution was to check each hex in range of 4,with A* pathfinding,and if path cost was less than 4 then this hex was in range.Finally game nicely show me range of that unit. My question is: Is there other solution to search for range on hex grids or square grid,because even if i am really proud of what i did in my solution,i think,it is a little to exaggerated?:)) What make me ask this question?I noticed that when unit speed is 4 or 6 or even 8,time to computing range for my computer was really good,but when speed was 10 and more i noticed that i needed to wait few second to compute.Well in real games i rather dont see something like this and my A* pathfinding is rather well optimized,so im thinking that my solution is wrong. Thanks for any replies.

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• What's the reason in your mind Exception are heavily used in Managed (C# and Java) language but not in C++?

  - by ZijingWu

  AFAIK, a lot of C++ projects don't allow exceptions and deny them in coding guidelines. I have a lot of reasons, for example, Exception is hard to handle correctly if your binary needs to be compiled by separate and different compilers. But it doesn't fully convince me, there is a lot of projects which are just using one compiler. Compared to C++, Exceptions are heavily used in C# and Java and the reason can only be that Exception are not bringing enough benefit. One point is Debugbility in practice. Exception can not get the call stack in C++ code, but in C# and Java you can get the call stack from Exception, it is significant and makes debugging easier. No-CallStack is not the fault of the Exception, it is the language difference , but it impacts the Exception usage. So what's the reason that exceptions are frowned upon in c++ programs?

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• Good way of handling class instances in game development?

  - by Bugster

  I'm a new indie game developer, and I've made a few games, but often times when coding I wonder "Is this the way most people do it? Am I doing it wrong?" because I'd like to become a game developer some day, and I really want to get rid of bad practices in time. The way I'm doing it right now is like this: #include <some libraries> #include "Some classes" int main() { Class1 a; Class2 b; Class3 c; a.init(); b.init(); c.init(); // game logic; } Now as I see the game grow, I have more and more classes to initialize and create instances of. This is clean but I'm not sure if this is standard practice. Is this a regular way of creating instances of your game classes or is there a cleaner and more efficient way to do it?

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• How to export user input data from python (Tkinter) to excel? [migrated]

  - by mrn

  I am trying to develop a user form in python 2.7.3. Please note that I am a python beginner. I am trying to use xlwt to export data to excel. I want to write values of following variables i.e. a (value to write:'x1') & d (value to write: be user defined information in text box), to an excel sheet, a=StringVar() checkBox1=Checkbutton(root, text="text1", variable=a, onvalue="x1", offvalue="N/A") checkBox1.place(relx=0., rely=0., relwidth=0., relheight=0.) checkBox1.pack() d=StringVar() atextBox1=Entry(root, textvariable=d, font = '{MS Sans Serif} 10') atextBox1.pack()

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• Good choice of languages for making a program that manages and organizes business? [closed]

  - by Ronney P

  I've been reading questions and discussions on this website but haven't made an account to start talking or asking anything I had doubts in so please bare with a newbie here. What are specific languages that have are able to make a program that will record, and organize things such as hours, salaries, payments? Also solve business problems, mostly with payments, how much money there will be after interest, taxes and such. Anyway, I've been looking into COBOL, C++, Java, HTML, JavaScript, VB.NET and a couple more. Which ones should I focus on and look into more? I very much appreciate any answers. Thank you.

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• Cross-platform & 3D mobile game development [on hold]

  - by Sylvia MBemba

  I am not a developer or programmer and, I am planning an educative project that will involve having students to develop a cross-platform, 3D mobile game, similar to the SimCity concept. I need to write a project requirement and I'd like to pick someone's brain to understand what's involved in developing such a project: Is it realistic to have one or two students to do it? and along their other modules at uni? How much time can it take to develop from scratch? what are the different skills required?

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• Is there such a concept as "pseudo implementation" in software development?

  - by MachuPichu

  I'm looking for a label to describe the practice of using human-based computation methods or other means of "faking" an algorithm for the sake of getting a product or demo off the ground quickly without spending the time to develop an technical/scalable/analytical solution? Eg: using Amazon Turk to count the number of empty tables in a restaurant. I'm also looking to learn more about this subject, but not sure what to search for. Human-based computation is only one method, I'm interested in the general idea of pseudo-implementation. Any ideas, recommended reading? Thanks

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• Row Versioning Concurrency in SQL Server

  The optimistic concurrency model assumes that several concurrent transactions can usually complete without interfering with each other, and therefore do not require draconian locking on the resources they access. SQL Server 2005, and later, implements a form of this model called row versioning concurrency. It works by remembering the value of the data at the start of the transaction and checking that no other transaction has modified it before committing. If this optimism is justified for the pattern of activity within a database, it can improve performance by greatly reducing blocking. Kalen Delaney explains how it works in SQL Server.

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• Mimicking Network Databases in SQL

  Unlike the hierarchical database model, which created a tree structure in which to store data, the network model formed a generalized 'graph' structure that describes the relationships between the nodes. Nowadays, the relational model is used to solve the problems for which the network model was created, but the old 'network' solutions are still being implemented by programmers, even when they are less effective.

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• Working in America from the UK

  - by thedixon

  I've been toying with the idea for the last few years and I figured it was about time to start asking questions about it! Here goes: I'm a Senior-level .NET/C# programmer from the UK, with 7 years of commercial experience in industry and looking to work over across the pond in the big ol' USA! This is with a view to live there on a permanent basis. My idea is to try and set up some interviews and go over there for a week to attend them, then I guess wait for responses in hopes they'd sponsor me for a working VISA. I'd like to know is there anyone out there with any experience of doing the same thing? Was it difficult finding work? Is there anything I should know before embarking on this route? How long did the transition take? Update: Considering the down votes, either I've posted this in the wrong place, or people really don't like my query. If so, please shed some light.

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• For what purpose I can use c++ to increase my skills?

  - by user824981

  I want to learn new things. Initially I was a PHP programmer. Then I thought it was not enough. Then I started learning Java thing. It took me 3 months to learn. Java, J2EE, Spring, Hibernte, Spring Security, Spring Roo and many design patterns MVC and stuff like AOP, DI . I never knew that before but I got the idea what J2EE. After 3 months, I just made a simple page with Registration form integrated with Spring Security. I wanted to make one complete project in it but that was too much for me and I didn't want spend more time on it as then i need to host that as well so I left that. Then I started learning Python and made few sys admin scripts and then Django and now I am finishing a complete web app in Python. Now I want to learn C++, but before that I need to find out what i can do with it. Just like I know Python is very useful because I have my own servers so I can write scripting and websites so Python is good for me. But I am confused in which areas C++ can help me. I don't want to end up like I have with Java where either I have big projects or nothing for day to day use.

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• Child to Parent linking - bad idea?

  - by Thraka

  I have a situation where my parent knows about it's child (duh) but I want the child to be able to reference the parent. The reason for this is that I want the child to have the ability to designate itself as most important or least important when it feels like it. When the child does this, it moves it to the top or bottom of the parent's children. In the past I've used a WeakReference property on the child to refer back tot he parent, but I feel that adds an annoying overhead, but maybe it's just the best way to do it. Is this just a bad idea? How would you implement this ability differently?

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• Vertex Array Object (OpenGL)

  - by user5140

  I've just started out with OpenGL I still haven't really understood what Vertex Array Objects are and how they can be employed. If Vertex Buffer Object are used to store vertex data (such as their positions and texture coordinates) and the VAOs only contain status flags, where can they be used? What's their purpose? As far as I understood from the (very incomplete and unclear) GL Wiki, VAOs are used to set the flags/status for every vertex, following the order described in the Element Array Buffer, but the wiki was really ambiguous about it and I'm not really sure about what VAOs really do and how I could employ them.

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• Dealing with Fanboys

  - by jozefg

  We've all probably met someone like this, that developer who just knows that his language is the one true language and won't shut up about it. How do you deal like someone like this? I don't want to offend anyone (especially since the fanboy in my workplace is the senior developer). But I want to be able to use my own choice of scripting language when I have to write a throwaway script that never makes it to the repository and no one else need know existed. Thoughts that I had to dealing with this: Laugh it off - "Haha yeah maybe language X is a bit easier, I guess I'm a masochist!" Go with it - I'd really prefer to avoid this as I can't afford the drop in productivity associated with picking up a new language. Hide my language - Become a closet programmer and hide my monitor whenever I'm scripting or automating something. What would you suggest for this situation?

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• Software development based on a reference implementation

  - by Kanishka Dilshan

  Lets say I have library "A2" as a dependency in a project. Library "A2" is derived from library "A1" where someone has done few changes to the library "A1" 's source code. Lets say there is a new version of "A1" I want to use the new version but no modification to its sourcecode at all. I am planning to identify what are the changes done to the original library when deriving library "A2" out of it and decorate the latest version of the library with those changes. Is it a good approach to solve this? if not can someone suggest the best approach to solve this kind of problems?

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• IPC (inter-process communication) server to connect different runtimes

  - by wvxvw

  Couple days ago I've spoken to someone who mentioned a server product that has as its main goal the ability to create inter-runtime layer that allows sharing in-memory object between different languages. The person also described the process of creating such layer as defining a number of structs in a special way such that different languages which access the objects would have the same idea of what the data they access looks like. Unfortunately, I forgot what this product is called, and Google didn't help me finding it so far. Would you happen to know what he was talking about?

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• User input and automated input separation

  - by tpaksu

  I have a MySQL database and an automation script which modifies the data inside once a day. And these columns may have changed by an user manually. What is the best approach to make the system only update the automated data, not the manually edited ones? I mean yes, flagging the cell which is manually edited is one way to do it, but I want to know if there's another way to accomplish this? Just curiosity. BTW, the question is about cell values, not rows.

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• Help with off-game tasks

  - by peoro

  I love writing video games for fun, and often do that. I noticed, anyway, that most of the times implementing the gameplay itself doesn't take too much time to me (maybe because I already did that plenty times and know what and how to do for most of the things), but when I try to implement off-game stuff I get lost. By off-game I mean what is not gameplay: menus, cutscenes between levels, world map to choose levels, saving and loading status, managing replays ... Only tried to write a few of these a few times, but always failed; that's why I never really completed and distributed a game. Are these common problems? And where should I start to do this? Where could I find some books/guides about such stuff?

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• Whats next after C#\.NET [closed]

  - by AbrahamJP

  I am a .NET developer with 6+ years of exp. when ever i go for an interview I felt like dotnet space is crowded with talents. I would like to do some value addition for myself by learning new technologies\skills. I am primarily a developer on business applications. Here is some areas that I had identified. 1. Sharepoint\BizTalk 2. Mobile development (Android, iPhone) Please help to identify which technology to opt for in order to enhance my skillset.

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• Should you promise to deliver a feature that you aren't sure if its implementable?

  - by user476

  In an article from HN, I came across the following advice: Always tell your customer/user "yes", even if you're not sure. 90% of the time, you'll find a way to do it. 10% of the time, you'll go back and apologize. Small price to pay for major personal growth But I've always thought that one should do a feasibility analysis before making any kind of promises to a customer/user, so that they aren't misled at any point. At what circumstances, then, should the above advice applicable?

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• Capture an area of a game, display it in a small window

  - by steakbbq

  I am looking to make a program that accomplishes some simple goals. I need to be able to specify an area of my screen to have reproduced in a window. Similar to who the windows magnifier works. I also need it to stay on top. I also need it to be transparent. I also need it to be ghost like(mouse clicks go through it) so the application below can be interacted with still. Here is what I am trying to do. What would be the best way to go about it? http://i.imgur.com/0ahi7.jpg

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• How do I generate a random curve for landscape (like Worms)? [closed]

  - by Stas

  Possible Duplicate: How do I generate terrain like that of Scorched Earth? How can I generate Worms-style terrain? I must build random curve line for the 2D Game on the BitMap (like in Worms, from the side). Teacher said that I should do it using Terrain Generation through recourcy (I work in Delphi 7). I understand the main principle, but I don't know how to introduce it as code. All measurements according to the screen resolution.

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