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  • How to explain pointers to a Java/VB programmer

    - by Skeith
    I am writing a game and my friend has offered to help me as it is a RPG and will take a long time to do the "scripting" bit of the game. The problem is IMO he's not that good a programmer :( (add flame war here). He has only programmed in Java and VB and keeps saying really stupid things to me like "Why don't you drag and drop an onClick event" to design my UI when I'm using DirectX. I tried explaining pointers to him but his response was, if it's just a variable that holds a memory address, why don't you just use an int? I create an instance of an attack class and give the creature a pointer to it so if several creatures use the same attack there is only one instance of it. He keeps saying why not put if statements in the creature class for every attack class and set true for the ones that are there. He has programmed mainly in VB and a little in Java just to learn OOP. How can I explain advanced C++ concepts like pointers and memory management to him? He just doesn't understand there are no super functions like form.show in C++.

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  • How can you become a competent web application security expert without breaking the law?

    - by hal10001
    I find this to be equivalent to undercover police officers who join a gang, do drugs and break the law as a last resort in order to enforce it. To be a competent security expert, I feel hacking has to be a constant hands-on effort. Yet, that requires finding exploits, testing them on live applications, and being able to demonstrate those exploits with confidence. For those that consider themselves "experts" in Web application security, what did you do to learn the art without actually breaking the law? Or, is this the gray area that nobody likes to talk about because you have to bend the law to its limits?

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  • What's the difference between MariaDB and MySQL?

    - by Chris J. Lee
    What's the difference between MariaDB and MySQL? I'm not very familiar with both. I'm primarily a front end developer for the most part. Are they syntactically similar? Where do these two query languages differ? Wikipedia only mentions the difference between licensing: MariaDB is a community-developed branch of the MySQL database, the impetus being the community maintenance of its free status under GPL, as opposed to any uncertainty of MySQL license status under its current ownership by Oracle.

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  • When to use abstract classes instead of interfaces and extension methods in C#?

    - by Gulshan
    "Abstract class" and "interface" are similar type of ideas, while interface being more abstract. One need of abstract classes was to provide method implementations for the derived classes. But in C#, that need has also been reduced by lately introduced extension methods. So, in C#, when should we use abstract classes instead of using interfaces and extension methods associated with the interface? And now, we can use 'Properties' in interfaces also. A notable example of interface+ extension methods is the Heavily used IEnumerable and it's helper methods. You use Linq and it's all by this extension methods!

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  • What defines good developer culture? [closed]

    - by Sven
    We are a team of 6 people developing applications for mobile devices (Android & iOS). In our company, which consists of many teams responsible for "classic" software development, business intelligence, virtualization, hardware, etc., we are kind of a small startup because we were the first to use agile methods like Scrum and we are open to new technologies and methods. Also our team is pretty young with me being the oldest with 30 years. We would like to further raise productivity and motivation and thus are currently collecting points which make up a good developer/hacker culture and which may be improved in our team/company. This can be points that we can either improve ourselves or have to pass on to management. I would like to know what in your opinion defines good, modern developer culture? What does developer culture consists of? For example is it clearly defined career opportunities geeky office benefits like trips to extraordinary conferences like WWDC or Google I/O ...

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  • Dictionary as DataMember in WCF after installing .NET 4.5 [migrated]

    - by Mauricio Ulate
    After installing .NET Framework 4.5 with Visual Studio 2012, whenever I want to obtain the reference from a WCF service, my dictionaries are changed into arrays. For example, Dictionary<int, double> is changed into ArrayOfKeyValueOfintdoubleKeyValueOfintdouble. This happens in both Visual Studio 2012 and 2010 (both Express). I've reviewed my configuration and the dictionary data type in the service reference configuration is System.Collection.Generic.Dictionary. Changing this doesn't make a difference. Reverting to just using Visual Studio 2010 and .NET 4.0 is not an option.

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  • What should be the minimal design/scope documentation before development begins?

    - by Oliver Hyde
    I am a junior developer working on my own in the programming aspect of projects. I am given a png file with 5-6 of the pages designed, most times in specific detail. From this I'm asked to develop the back end system needed to maintain the website, usually a cataloging system with products, tags and categories and match the front end to the design. I find myself in a pickle because when I make decisions based on assumptions about the flow of the website, due to a lack of outlining details, I get corrected and am required to rewrite the code to suit what was actually desired. This process happens multiple times throughout a project, often times on the same detail, until it's finally finished, with broken windows all through it. I understand that projects have scope creep, and can appreciate that I need to plan for this, but I feel that in this situation, I'm not receiving enough outlining details to effectively plan for the project, resulting in broken code and a stressed mind. What should be the minimal design/scope documentation I receive before I begin development?

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  • Where's Randall Hyde?

    - by user1124893
    This probably doesn't belong here, but I couldn't think of any other StackExchange site that would fit it. Quick question, what ever happened to Randall Hyde, author of The Art of Assembly, HLA, and other works? I ask this because I was just exploring some of the content on his website and a lot of it is now gone. His website was hosted on Apple's MobileMe. As of the writing of this question, Apple has closed off all MobileMe content a few days ago. Correct me if I'm wrong, but didn't Apple warn of this a year in advance? If so, then where's Randall Hyde? Come to think of it, all of the content on his website that I have seen is several years old. A lot of it is rather useful but unfinished.

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  • embedding LEFT OUTER JOIN within INNER JOIN

    - by user3424954
    I am having some problems with one of the question's answered in the book "SQL FOR MERE MORTALS". Here is the problem statement Here is the Database Structure Here is the answer which I am unable to comprehend Here is an answer which looks perfect to me Now the problem with the first answer I am having is: We first use LEFT OUTER JOIN for recipe class and recipes. So it selects all recipe class rows but only matching recipes. Perfecty fine as the question is demanding. Lets call this result set R. Now in the next step when we use INNER JOIN to join RecipieIngridients, it should filter out the rows from R in which Recipie ID doesn't match with the Recipe Id in Recipie Ingredients and hence filtering out the related Recipe class and recipe description also(Since it filters out the entire row of R). So this contradicts with the problem which demands all recipieID and RecipieDescription to be displayed from Recipe_Classes Table in this very step only. How can it be correct. Or Am i Missing some concept.

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  • When you should and should not use the 'new' keyword?

    - by skizeey
    I watched a Google Tech Talk presentation on Unit Testing, given by Misko Hevery, and he said to avoid using the new keyword in business logic code. I wrote a program, and I did end up using the new keyword here and there, but they were mostly for instantiating objects that hold data (ie, they didn't have any functions or methods). I'm wondering, did I do something wrong when I used the new keyword for my program. And where can we break that 'rule'?

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  • Link between tests and user stories

    - by Sardathrion
    I have not see these links explicitly stated in the Agile literature I have read. So, I was wondering if this approach was correct: Let a story be defined as "In order to [RESULT], [ROLE] needs to [ACTION]" then RESULT generates system tests. ROLE generates acceptance tests. ACTION generates component and unit tests. Where the definitions are the ones used in xUnit Patterns which to be fair are fairly standard. Is this a correct interpretation or did I misunderstand something?

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  • Looking for Application Framework Features Lists, Comparisons and Guides [closed]

    - by Blah McBlah
    I am looking for lists of the things that application frameworks can do and for websites that have matrices, marketing content, blog articles and whatnot for comparing application frameworks to each other or just selling a framework. I'm talking generally, so regardless of coded language or operating system or client device. I want it all. I've found a few online, and would appreciate whatever sources I can glean from this site too.

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  • Buzzword for "performance-aware" software development

    - by errantlinguist
    There seems to be an overabundance of buzzwords for software development styles and methodologies: Agile development, extreme programming, test-driven development, etc... well, is there any sort of buzzword for "performance-aware" development? By "performance awareness", I don't necessarily mean low-latency or low-level programming, although the former would logically fall under the blanket term I'm looking for. I mean development in which resources are recognised to be finite and so there is a general emphasis on low computational complexity, good resource management, etc. If I was to be snarky, I would say "good programming", but that doesn't seem to get the message across so well...

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  • JSP Include: one large bean or bean for each include

    - by shylynx
    I want to refactor a webapp that consists of very distorted JSPs and servlets. Because we can't switch to a web framework easily we have to keep JSPs and Servlets, and now we are in doubt how to include pages into another and how to setup the use:bean-directives effectively. At the first step we want to decouple the code for the core-actions and the bean-creation into servlets. The servlets should forward to their corresponding pages, which should use the bean. The problem here is, that each jsp consists of different sub- and sub-sub-jsp that are included into another. Here is a shortend extract (because reality is more complex): head header top navigation actionspanel main header actionspanel foot footer Moreover each jsp (also the header and footer) use dynamic data. For example title and actionspanel can change on each page-reload or do have links and labels that depend on the processing by the preceding servlet. I know that jsp-include-directives should only be used for static content und should be avoided for dynamic content. But here we have very large pages, that consist of many parts. Now the core questions: Should I use one big bean for each page, so that each bean holds also data for header and footer beside its core data, so that each subsequent included jsp uses the same bean-directive? For example: DirectoryJSP <- DirectoryBean CompareJSP <- CompareBean Or should I use one bean for each jsp, so that each bean only holds the data for one jsp and its own purpose. For example: DirectoryJSP <- DirectoryBean HeaderJSP <- HeaderBean FooterJSP <- FooterBean CompareJSP <- CompareBean HeaderJSP <- HeaderBean FooterJSP <- FooterBean In the second case: should the subsequent beans be a member of the corresponding parent bean, so that only the parent bean is attached as attribute to the request? Or should each bean attached to the request?

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  • Personal knowledge base [closed]

    - by AlexLocust
    Possible Duplicate: How do you manage your knowledge base? Hello. Now I am using easy writing pad for scratches while doing some researches, solving troubles or doing workarounds. But.. you now, it's really difficult to remember all details of founded solution and it's alternatives after few months. And writing pad is not wery useful. Usually writing pad doesn't contains half of needed inforation: links founded in internet, output of some test commands and etc. Now I'am looking for a tool for storing information about my researches and it's results. Basic reqirements: ability to store files; ability to store formatted text (kind of HTML will be nice) with hyperlinks and code snippets; tags on notes; easy to use. Now I'am thinking about some kind of file-system organized storage, but I think it will be inconvenient. Another thinks is local wiki or blog. So, my question is: How do you organize you knowlege base? What tools do you use, and what "pros and cons".

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  • Career paths after web development?

    - by Mike
    I know this is open ended, but I'm just curious what you've done after your web development career, or if you've stayed loyal. I have a feeling/read/heard that web development salaries top out at a certain amount.. even after 10-15 years of experience. Reason I ask is that I graduated last summer with a BS in Chemical Engineering.. but have not been able to find a job in California. I've been web designing/developing since high school and thought that I should start a career, even if its not related to my major and not lose more time. Even though I'd really like to have an engineering career, I don't think that will happen. Do you guys have any suggestions or experiences for choices after/ways to enhance your career after several years in web development? Thanks! Update: Thanks for the responses guys! One more question: Is it likely to be accepted into a MS/PhD program if you've been out of uni for a couple years? Or with semi-related job experience? Would I be a bit of a misfit with a BS in ChemE studying CS/CompE for an MS?

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  • Is a Model Driven Architecture in Language Oriented Programming (MPS) feasible at this time

    - by Steven Jeuris
    As a side project I am developing some sort of DSL where I describe a data model, and generate desired code files from it. I believe this is called Model Driven Architecture. My partial existing implementation uses C#, CodeDOM, XML and XSLT to do this manually. I discovered there already exist better environments to do this in. The one which fascinated me the most is called MPS, which follows the Language Oriented Programming paradigm. This article, written by a cofounder of JetBrains was a real eye opener for me. I truly believe LOP has a very good chance of becoming the next big programming paradigm once it has broader support. From my short experience with MPS, I noticed it is still mainly Java-oriented. My question is, how feasible is it to generate code files for other (multiple) languages instead of just Java. I don't need full language support from the start, so preferably, I need to be able to implement a language in a agile way. E.g. first support only one type, add access modifiers, ... Perhaps some other (free) environment already provides this out of the box. P.S.: I find it important to have a lot of control over the naming conventions and such of the generated code. This is one of the reasons why I started my own implementation.

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  • How to prepare for the GRE Computer Science Subject Test?

    - by Maddy.Shik
    How do I prepare for the GRE Computer Science subject test? Are there any standard text books I should follow? I want to score as competitively as possible. What are some good references? Is there anything that top schools like CMU, MIT, and Standford would expect? For example, Cormen et al is considered very good for algorithms. Please tell me standard text books for each subject covered by the test, like Computer Architecture, Database Design, Operating Systems, Discrete Maths etc.

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  • How to handle growing QA reporting requirements?

    - by Phillip Jackson
    Some Background: Our company is growing very quickly - in 3 years we've tripled in size and there are no signs of stopping any time soon. Our marketing department has expanded and our IT requirements have as well. When I first arrived everything was managed in Dreamweaver and Excel spreadsheets and we've worked hard to implement bug tracking, version control, continuous integration, and multi-stage deployment. It's been a long hard road, and now we need to get more organized. The Problem at Hand: Management would like to track, per-developer, who is generating the most issues at the QA stage (post unit testing, regression, and post-production issues specifically). This becomes a fine balance because many issues can't be reported granularly (e.g. per-url or per-"page") but yet that's how Management would like reporting to be broken down. Further, severity has to be taken into account. We have drafted standards for each of these areas specific to our environment. Developers don't want to be nicked for 100+ instances of an issue if it was a problem with an include or inheritance... I had a suggestion to "score" bugs based on severity... but nobody likes that. We can't enter issues for every individual module affected by a global issue. [UPDATED] The Actual Questions: How do medium sized businesses and code shops handle bug tracking, reporting, and providing useful metrics to management? What kinds of KPIs are better metrics for employee performance? What is the most common way to provide per-developer reporting as far as time-to-close, reopens, etc.? Do large enterprises ignore the efforts of the individuals and rather focus on the team? Some other questions: Is this too granular of reporting? Is this considered 'blame culture'? If you were the developer working in this environment, what would you define as a measureable goal for this year to track your progress, with the reward of achieving the goal a bonus?

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  • Diff annotation tool

    - by l0b0
    Among the 11 proven practices for more effective, efficient peer code review, diff annotation seems to be the one particularly well suited to tool assistance. The article is written by the architect of SmartBear's CodeCollaborator, so he of course recommends using that. Does anyone know of any alternatives? I can't think of anything that would be even close to paper+pen+marker in pure developer efficiency when it comes to explaining a piece of code.

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  • Resources on how to relate structured and semi- / un-structured information

    - by Fritz Meissner
    I don't have a great background in information organisation / retrieval, but I know of a few ways of dealing with the problem. For structured information, it's possible to go OOish - everything "has-a" or "has-many" something else, and you navigate the graph to find relationships between things. For unstructured information, you have techniques like text search and tagging. What resources - articles or books - are there that summarise the CS theory behind these techniques or could introduce me to others? I'm developing a system that needs to handle capture and retrieval of information that ranges from necessarily unstructured (advice about X) to structured (list of Xs that relate to Ys) to a combination (Ys that relate to the advice about X) and I'd like to get some insight into how to do it properly.

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  • Why should i write a commit message?

    - by acidzombie24
    Why should i write a commit message? I dont want to and i think its stupid every single time. A gui frontend i use which will go unnamed forces you to do it. I hear other doing it everytime even if they are using the VCS on the command line. If i commit several times a day and havent finish a feature what am i writing about? I ONLY ever write a message after many comments and i feel its time for a mini tag or when i do an actual tag. Am i right or am i missing something? also i am using a distributed system

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  • What is really happening when we change encoding in a string?

    - by Jim Thio
    http://php.net/manual/en/function.mb-convert-encoding.php Say I do: $encoded = mb_convert_encoding ($original); That looks like simple enough. WHat I am imagining is the following $original has a pointer to the way the string is actually encoded. Something like char * kind of thing. And then there are things like what the character actually encoded. It's probably somewhere along UTF-64 kind of thing where each glyph is indeed a character. Now when we do $encoded = mb_convert_encoding ($original); several thing can happen: the original internal representation doesn't change however it is REINTERPRETED so that the code that show up differs the original string that it represent doesn't change however the ENCODING change. Which one is right?

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  • How to modify Perl script to move packets in diffrent directory based on version? [migrated]

    - by Peter Penzov
    I have this Perl script which is used to soft packages based on packet version: #!/usr/bin/perl -w # # Compare versions of all *.rpm files against the # latest packages installed (if installed) # # Usage: # rpmver.pl # This script looks for all *.rpm files. # use strict; use RPM2; my $rpm_db = RPM2->open_rpm_db(); for my $filename (<*.rpm>) { my $h = RPM2->open_package( $filename ); # Ensure we compare against the newest # package of the given name. my ($installed) = sort { $b <=> $a } $rpm_db->find_by_name($h->name); if (not $installed) { printf "Package %s not installed.\n", $h->as_nvre; } else { my ($result) = ($h <=> $installed); if ($result < 0) { printf "Installed package %s newer than file %s\n", $installed->as_nvre, $h->as_nvre; } else { printf "File %s newer than installed package %s\n", $h->as_nvre, $installed->as_nvre; } } } I have a Linux repository with SRPMs. I want to move the packages with the latest into different directory for example latest_lackages. How the script must be modified?

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  • What are some good Photo and Artwork APIs?

    - by Ryan T
    We had an idea for starting a ecards service and were looking into the possibility of populating our site using photo/artwork APIs. Due to legal reasons, Flikr probably won't work, although I've started to scour the web for other options. Basically we just need two functions the user should be able to browse the site's collection and choose a picture we should be able to recall and render a specific picture on our site. From there we should have no problem building our application. The main obstacle is that we're lacking content at the moment. I haven't been able to find too many examples of this being done, so I was wondering if anyone here might know people who have done something similar to what we're trying to do, or know of any leads that might be able to help us out. Suggestions for other APIs that are out there, or forums/communities that might be able to point us in the right direction are also welcome.

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