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• Microsoft Developers Development Laptops [closed]

  - by FidEliO

  Possible Duplicate: What should I be focusing on when building a development PC? I am a Microsoft Developer on Sharepoint and ASP.NET. I am tring to buy a new laptop since the one that I have is an old one. From my point of view, Microsoft Development tools are becomming more and more resource-consuming (I don't find a suitable reason for it though). So I thought I would go for a Lenovo U260 i-7. I do not know exactly if it is going to meet my requirement so that is why I wanted to ask specifically Microsoft Developers about the specification of CPU, RAM, and Storage Disk. Thanks in advance

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• Doubt regarding search engine/plugin(One present on the website itself)

  - by Ravi Gupta

  I am new to web development and trying to study various types of websites as case study. Right now my focus is on how search engines works for an eCommerce website. I know basic functioning for a search engine, i.e. crawl web pages, index them and the display the results using those indexes. But I got little confuse in case of an eCommerce website. Don't you think that it would be better if a search engine instead of crawling the web pages containing products, it should directly crawl the database and index the products stored in the database? And when a user search for any product, it will simply give us the rows of the table which matches the user query? If this is not the case, can someone please explain how the usual method works on eCommerce website?

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• Using components with different permissive licenses in a commercial app. How to display copyright correctly?

  - by Ivaylo Slavov

  I am writing a commercial application that will make use of some open libraries licensed under different licenses. For example one library will be licensed under the Apache 2.0 license, another will use the LGPL license. Both licenses allow usage in commercial applications, but differ in the way the attributions of licensed work is given. It is my first commercial application that uses 3rd party libraries and I want to do the right thing so that the 3rd party licenses are satisfied. I am not only asking what I should do, but also what I must not do.

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• Do you keep your ideas secret? and why?

  - by MainMa

  I believe any programmer has several ideas that she/he considers as innovative or at least valuable. It may be an idea of a new product which will make this world better or a new development approach, etc. But a great idea must be implemented and promoted/advertised. This requires a lot of work (proofs of concept, prototypes, technology previews, etc.) and a lot of money (appropriate advertisement, marketing, etc.). So months later, the idea stays in our heads, but nothing else is done, because it's difficult, long and expensive, sometimes even impossible for a single developer. On the other hand, it would be painful to share our ideas, and see a medium-size company which has enough resources making something useful from it and having success and money. So what do you do with your ideas you can hardly implement or patent? Do you talk freely about them in discussion boards and with other developers? Do you keep them like a precious thing without never talking about them to anybody? If you keep your ideas, why are you doing so? Is it just because you hope that one day, you will be able to implement them and have a huge success, while you know very well by experience that it's an utopia?

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• Algorithm to calculate trajectories from vector field

  - by cheeesus

  I have a two-dimensional vector field, i.e., for each point (x, y) I have a vector (u, v), whereas u and v are functions of x and y. This vector field canonically defines a set of trajectories, i.e. a set of paths a particle would take if it follows along the vector field. In the following image, the vector field is depicted in red, and there are four trajectories which are partly visible, depicted in dark red: I need an algorithm which efficiently calculates some trajectories for a given vector field. The trajectories must satisfy some kind of minimum denseness in the plane (for every point in the plane we must have a 'nearby' trajectory), or some other condition to get a reasonable set of trajectories. I could not find anything useful on Google on this, and Stackexchange doesn't seem to handle the topic either. Before I start devising such an algorithm by myself: Are there any known algorithms for this problem? What is their name, for which keywords do I have to search?

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• We are moving an Access based corporate front-end into a Web-based App

  - by Max Vernon

  We have an enterprise application with a front end written in Microsoft Access 2003 that has evolved over the past 6 years. The back end data, and a fair amount of back-end logic is contained within several Microsoft SQL Server databases. This front end app consists of around 180 forms, and over 120,000 lines of code, and interacts with VB.Net DLLs that support various critical functions used by our sales force. The current system makes use of 3 monitors to display various information; the Access app uses COM+ to control Microsoft Outlook and Internet Explorer for various purposes. The Access front end sometimes occupies 2 screens, automatically resizing itself based on Windows API-reported screen dimensions. The app also uses a Google map to present data to our agents, and allows two-way interactivity with the map through COM+ connectivity to JavaScript contained in the Google map. At the urging of senior management, we are looking to completely rewrite this application using some web-based technology, such as ASP.Net or perhaps a LAMP stack (the thinking with the LAMP stack thing is "free" is pretty cheap). We want to move to a web-based app so we can eliminate the dependency on our physical location for hiring new sales force members. Currently, our main office is full to capacity, and we need to continue growing the company. Does anyone have any thoughts on what would be the best technology to use for a web-based app of this magnitude? Keeping in mind the app is dependent on back-end services on our existing infrastructure. The app handles financial data and personal customer data, among other things. [I've looked at Best practices for moving large MS Access application towards .Net? and read the answers, and most of the comments. Interesting reading, and has some valid points, but our C.O.O. and contracted Software Architect are pushing for a full web-based app, not a .Net Windows App]

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• Is "PHP and MySQL Web Development, 4th ed." an outdated book to learn from?

  - by ForeverLearnNeverMaster

  I want to get into web stuff, and thought of going with PHP+MySQL. I have experience in C#, C++, desktop graphics, but no web stuff besides HTML, CSS which I started learning 2 months ago. On SO PHP-book question, the highest rated book is "PHP Objects, Patterns and Practice". However, I'm not sure if it's a book to start PHP with... or is it? Most of the books mentioned in that SO question seem to be for those who already know PHP. I considered "PHP & MySQL Web Development, 4th Ed.", but someone mentioned that "it uses the mysql_* functions which are almost deprecated." Help?

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• What's the progress on Haskell records?

  - by mmh

  Recently I stumbled once again on the issues of Haskells records, in particular the uniqueness of field names (it's a pain ...) I already read A proposal for records in Haskell from SPJ and Greg Morrisett but it's last update was 2003. Another paper Lightweight Extensible Records for Haskell from SPJ and Mark Jones is even older: It's from a Haskell workshop in 1999. Now I wonder if the process of giving Haskell new records made any progress. Does anybody know something about it or can point me to some further reading ?

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• How can I use timer to stop another thread? [on hold]

  - by Haoda Fu

  How can we stop another thread based on a timer? I was trying to use timer to stop another thread. But I didn't got a success. To better illustrate my point and for your easy to understand the key issue. I made the following sample example. Your help is really appreciated using System; using System.Collections.Generic; using System.Text; using System.Threading; using System.Timers; namespace TestCodes { public static class Program { private static Thread nT = new Thread(PrintABC); private static System.Timers.Timer aTimer; public static void Main() { aTimer = new System.Timers.Timer(1000); aTimer.Elapsed += TimerCallback; aTimer.Interval = 1000; aTimer.Enabled = true; nT.Start(); Console.ReadLine(); } private static void TimerCallback(Object o, ElapsedEventArgs e) { nT.Join(); Console.WriteLine("Complete the PrintABC"); GC.Collect(); } private static void PrintABC() { for (int iter = 1; iter < 300; iter++) { Console.WriteLine(iter+"abc"); Console.ReadKey(); //Thread.Sleep(100); } } } }

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• How does font rendering actually work?

  - by Andrea

  I realize that I know essentially nothing about the way fonts get rendered in my computer. From what I can observe, font rendering is generally made in a consistent way throughout the system. For instance, the subpixel font hinting settings that I configure in my DE control panel have influence on text which appears on window borders, in my browser, in my text editor and so on. (I should observe that some Java applications show a noticeable difference, so I guess they are using a different font rendering mechanism). What I get from the above is that probably all applications that need font rendering make use of some OS (or DE)-wide library. On the other hand, browsers usually manage their own rendering through a rendering engine, that takes care of positioning various items - including text - according to specific flow rules. I am not sure how these two facts are compatible. I would assume that the browser would have to ask the OS to draw a glyph at a given position, but how can it manage the flow of text without knowing beforehand how much space the glyph will take? Are there separate calls to determine the glyph sizes, so that the browser can manage the flow as if characters were little boxes that are later filled in by the OS? (Although this does not take care of kerning). Or is the OS responsible for drawing a whole text area, including text flow? Does the OS return the rendered glyph as a bitmap and leaves it to the application to draw that on the screen?

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• What criteria would I use SQL Stream Insight vs TPL Dataflow [closed]

  - by makerofthings7

  There is an add-in to the Task Parallel Library (TPL) called TPL Dataflow that allows a variety of data processing scenarios. It seems that there are some parallels to the SQL Stream Insight product, however since SQL's Stream Insight has some interesting licensing around it, and it has a better performance depending on what license I get... I found myself asking myself should I use TPL Dataflow and not have any licensing issues, and possibly better performance. Can anyone tell me if performance is a valid criteria for comparing SQL Stream Insight vs TPL Dataflow? What other criteria should I be looking at when comparing the two?

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• Should I return iterators or more sophisticated objects?

  - by Erik

  Say I have a function that creates a list of objects. If I want to return an iterator, I'll have to return iter(a_list). Should I do this, or just return the list as it is? My motivation for returning an iterator is that this would keep the interface smaller -- what kind of container I create to collect the objects is essentially an implementation detail On the other hand, it would be wasteful if the user of my function may have to recreate the same container from the iterator which would be bad for performance.

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• Is Clojure, Scala and other restrained by the JVM vs CLR

  - by jia93

  The Java implementors seem slow to adopt language improvements, for example compare C# with full closures, expression trees, LINQ etc.. to Java, and even the push back of some stuff to Java 8 will still leave it behind the current implementation of C#. However since I dont intend to use either Java or C# that particular language war isnt of interest too much, im more concerned with the JVM vs CLR. Is this lagging-behind also applicable to the JVM? Will Scala, Clojure etc.. will they be able to continue to innovate or score optimal performance in the face of slowly progressing underlying VM such as JVM? Is Clojure/Scala restrained at present by JVM limitations?

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• Use Case Diagrams - should I create a diagram just for a view business rule?

  - by Periback

  I'm modeling a UCD where I have two actors ( a content producer and a developer).. the content producer is going to create and specify details of a storyboard functionality, and the other actor (developer) will only be able to view this storyboard ( he'll log in the application and read the storyboard to start developing what it says, outside the application..) I'm working on the specification of this storyboard functionality and I'd like to know it would be like a best-practice if I describe something like " actor- developer", "UCD - read scenes of storyboard" . This is the specification of an application I developed for my thesis and they asked me to add some specification...

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• Continuous integration testing server: hosted, own desktop, or own server

  - by Victor

  For testing, I am planning to run a continuous integration testing. There are mainly two options: hosted, or own desktop/server. I will break it into 3 options I have: Hosted: Economical, $10-20/month for a small app Less setup, the CI company manage all hardware and software Desktop: I could just buy a simple, cheap desktop as a test server (about $500). Used server: My current office is offloading some old Dell rack server (Probably dual core Xeon, which I can purchase for $50 or less Please advise me which best serves me for a small team of 2-3 developers. Thanks.

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• My schoolmates are playing too much and talk loudly, what should I do ? report them ? [closed]

  - by jokoon

  I'm a in a private game programming school class (there are also 3D/art classes in the school), and at least half or two third of the 12 people in my class play at various games (Age of Empires, web games, online card games, etc). They are talking quite loudly on top of that, and I'm getting hard times trying to concentrate: it feels like I'm in a cybercafe full of teenagers. I don't know if I have Hyperacusis (http://en.wikipedia.org/wiki/Hyperacusis),

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• Languages on a resume: Is it better to put "C/C++" or "C, C++"?

  - by Kevin

  I'm graduating in a couple of weeks, and my resume (as expected) lists the languages that I've had experience with. Previously I've put "C/C++", however back then I didn't have that much experience with these two languages as I do now. Now that I've formally learned these two languages, it has become evident to me (and anyone who really knows these languages) that they are similar, and completely disimilar at the same time. Sure, most C code is compilable C++ code, but syntax and incorporation of library functions is pretty much where these similarities end. In most non-trivial problems, chances are that the desirable C++ solution will be different from the desirable C solution. My question: Will recruiters take note or care about whether you put "C/C++" as opposed to "C, C++"? Will they assume a lack of knowledge of the workings of either because of the inclusion of the first form, or perhaps see the inclusion of the second form as a potential "resume beefer" (listing them as 2 languages, instead of "one")? Furthermore, for jobs that you've applied to that were particularly interested in these two langauges, did the interview process include questions about the differences between C programming and C++ programming (so, about actual programming techniques, not only the extra paradigms in the latter)?

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• Languages with similar features to JavaFX Script

  - by bunglestink

  I just completed a small project in JavaFX, only finding that it has been declared dead by Oracle. JavaFX Script actually seemed to be a pretty interesting language with some neat features for its domain, particularly with bind for data binding and on replace for triggered events. These features actually make the language very useful for small, quick, RIA type apps, which leads to my question: Are there any mainstream languages with features similar to bind and on replace? After working with JavaFX, I got some ideas for some small personal (academic) projects that could take advantage of these features, but I would prefer to not start anything new in a language considered extinct by its owners.

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• Empty interface to combine multiple interfaces

  - by user1109519

  Suppose you have two interfaces: interface Readable { public void read(); } interface Writable { public void write(); } In some cases the implementing objects can only support one of these but in a lot of cases the implementations will support both interfaces. The people who use the interfaces will have to do something like: // can't write to it without explicit casting Readable myObject = new MyObject(); // can't read from it without explicit casting Writable myObject = new MyObject(); // tight coupling to actual implementation MyObject myObject = new MyObject(); None of these options is terribly convenient, even more so when considering that you want this as a method parameter. One solution would be to declare a wrapping interface: interface TheWholeShabam extends Readable, Writable {} But this has one specific problem: all implementations that support both Readable and Writable have to implement TheWholeShabam if they want to be compatible with people using the interface. Even though it offers nothing apart from the guaranteed presence of both interfaces. Is there a clean solution to this problem or should I go for the wrapper interface? UPDATE It is in fact often necessary to have an object that is both readable and writable so simply seperating the concerns in the arguments is not always a clean solution. UPDATE2 (extracted as answer so it's easier to comment on) UPDATE3 Please beware that the primary usecase for this is not streams (although they too must be supported). Streams make a very specific distinction between input and output and there is a clear separation of responsibilities. Rather, think of something like a bytebuffer where you need one object you can write to and read from, one object that has a very specific state attached to it. These objects exist because they are very useful for some things like asynchronous I/O, encodings,...

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• Are the National Computer Science Academy certifications worth it?

  - by Horacio Nuñez

  Hi to every one. I have a question regarding the real value of having NCSA's certifications. Today I reach their site and I easily passed the JavaScript certification within minutes, but I never reach questions related to Literal Javascript Notation (Json), closures or browser specific apis. This facts let me to doubt a bit of the real value of the test (and the proper certification you can have if you pay them $34), but maybe Im wrong and just earned a respected certification within the States for easy questions... in wich case I can spend some time doing other certifications on the same site. Did you have an NCSA certification and think is worth having it in your resume, or you know of a better certification program? thanks in advance, and looking forward to see your considerations.

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• What issues carry the highest risk in a software project?

  - by Mehrdad

  Clearly, software projects are different from other industries in terms of many things like for instance, quality assurance, project progress measurement, and many other things. Unique characteristics of software projects also makes the risk management process unique. Lots of issues in a project might lead it to unacceptable delay or failure to deliver business value. They might even make a complete disaster in the project. What are the deadliest risk factors in a software project? How to analyze, prevent and handle them? Particularly, I'm interested in the issues that you can detect from the beginning and you should keep an eye on (for example, you might be told about a third-party API that the current application uses and lacks documentation). Please share your experiences if they are relevant.

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• How to get projects and payments formally in the name of company.

  - by piemesons

  I am having a serviced based registered firm. I am having some basic questions. I want to know how to take projects formally in the name of the company.(I have clients, Just need to know the procedure.) I need to make some general agreement for clients? Also, how to take payment. I was working as part time free lancer from 1.5 years and was taking payments directly in my account. Now as I have registered the firm so i want to know the exact procedure to follow. Please let me know about this. EDIT I am having a registered firm in India and most of the clients are from US(80%) or UK(20%)

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• As an IT contractor, is it better to be a specialist or a jack-of-all-trades? [on hold]

  - by alimac83

  I've just entered the contracting market as a web developer and I've having a tough time figuring out how to plan for the future. Several developers I've worked with in the past have told me to become a specialist in one technology/area in order to secure the big contracts. However I've also heard from other sources that it's better to spread your expertise so that you're not limited in the types of work you can go for. Personally I've pretty much been involved in both back and front-end technologies during the course of my career, with slight variations in the weighting of each depending on the job. I don't really have a favourite - I enjoy it all. My question is mainly to the experienced contractors though: Do you feel specialising has helped your career or is it better to know a bit of everything? Thanks

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• Making a design for a Problem [closed]

  - by Vaibhav Agarwal

  I have written many codes using OOPS and I am still to understand when is a code good enough to be accepted by experts. The thought procedure of every man is different and so is the design. My question is should I do something in particular to design my programs in such a way that they are good enough to be accepted by people. Other thing I have also read Head First Object Oriented Design but at last I feel that the way they design the problems is much different I would have designed them.

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• How to update dependency during runtime in my .NET application?

  - by Louis Rhys

  I have a server-client application. Sometimes the server is updated which requires some DLLs in the client to be updated as well (The DLLs are the dependencies of the main executable). For now, we have to close the client, manually deploy the DLLs, and then start the client again. This is kind of an inconvenience because the client is an automated application, so normally it doesn't need any user intervention. Is it possible for this to be done automatically without restart or user intervention? Like, the client would download the latest DLL, and replace the current one?

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