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• Is legal to modifying a MIT licensed code and sale?

  - by Alper

  I have a project and i want to use a ready-made script in my project that is licensed under MIT, but using this script seperately will be redundant. So i've decided to merge my codes and MIT licensed script in the same file. ( Let's say i'll modify / improve / add new features to it) I'm planning to sell this work on a market but is it fair (legally)? NOTE: Meanwhile, I'll put (refer) MIT Licensed script's copyright already in the final file.

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• How can I create an Online compiler/Interpreter editor or is there any third party app that can be integrated? [on hold]

  - by atjoshi

  I am looking out for some solution where I can start developing an Online compiler/Interpreter editor. For Eg: http://code.hackerearth.com/5c4db5N Are there any third Party Pulgin Available or any way to do from scratch I am a PHP Dev. ? Looking for some possible hints how I can start with. Any link to good blog or tutorial. May be its not right place to ask this question but at least I can get best solutions here from experienced professionals. Thanks in advance

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• Algorithm for flattening overlapping ranges

  - by Joseph

  I am looking for a nice way of flattening (splitting) a list of potentially-overlapping numeric ranges. The problem is very similar to that of this question: Fastest way to split overlapping date ranges, and many others. However, the ranges are not only integers, and I am looking for a decent algorithm that can be easily implemented in Javascript or Python, etc. Example Data: Example Solution: Apologies if this is a duplicate, but I am yet to find a solution.

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• Single responsibility principle - am I overusing it?

  - by Tarun

  For reference - http://en.wikipedia.org/wiki/Single_responsibility_principle I have a test scenario where in one module of application is responsible for creating ledger entries. There are three basic tasks which could be carried out - View existing ledger entries in table format. Create new ledger entry using create button. Click on a ledger entry in the table (mentioned in first pointer) and view its details in next page. You could nullify a ledger entry in this page. (There are couple more operation/validations in each page but fore sake of brevity I will limit it to these) So I decided to create three different classes - LedgerLandingPage CreateNewLedgerEntryPage ViewLedgerEntryPage These classes offer the services which could be carried out in those pages and Selenium tests use these classes to bring application to a state where I could make certain assertion. When I was having it reviewed with on of my colleague then he was over whelmed and asked me to make one single class for all. Though I yet feel my design is much clean I am doubtful if I am overusing Single Responsibility principle

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• Software requirements for replicating a Windows application

  - by gpuguy

  I developed an application using Windows Form in C++ (IDE MSVC 2010). Some part of application also has MFC, and OpenCv. I want to send the application to my cleint for interim testing on his own machine. I have not developed any installer for the same, and so I will be sending him the.EXE file. I want that the client should not face any difficulty in replicating the experiment, and thus saves his time. Can somebody suggest me what all softwares(such as, MSVC, .NET Framework, Windows SDK etc) should already be installed on the client's machine for successfull testing of the application? Note: OS (Windows 7) and hardware is exactly same at both sides.

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• What is the traditional way to maintain extensibility in a database-driven application like this?

  - by Jsess

  I'm working on a simple application for a game in Java that allows a user to record whether they have collected a given item and how much experience it contains. This will work for multiple item types (weapons, armor) and each will have its own tab with a list of all items that qualify under it. Making changes as new types are added is not such a big deal (if a clothing slot is added, for instance), but new items are added to the game all the time in biweekly patches, and I'm not sure what the traditional/customary way to make sure the application is user-extensible without requiring me to would be. Whether that would be adding a configuration menu that allows users to add news items (new rows to the local SQLite database) or a text file with something similar, but I'm certain there's a well-accepted way to do this that I'm not aware of. I'm new to databases and ignorant of the solution, so what's the professional/futureproof way to do this?

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• Should one reject over-scoped projects?

  - by Little Child

  I spoke to my first potential client today and he told me about the requirements of his project - an Android app. He is a well-known designer / photographer in my country and now wants me to "convert the website into an app, custom-tailored". So the requirements, details stripped out, are as follows: eCommerce Aggregating all his content like videos, blogs, tweets, etc. into the app Live streaming any of his studio demos Augmented reality. So that people can see what his painting will look like on their wall before they buy it Taxi Sharing Now, for a freelance project, it seems too over-scoped. I am not saying that I cannot do it. I can. But let me be realistic: There is a steep learning curve when it comes to VR. I am not a tester. I have never white-box tested my own apps. I always black-box test. Since he is a renowned artist, something short of perfect might harm his public image So, I asked him for 2 weeks' worth of time before I give him the final answer. Now knowing whom to consult for advise, I am posting the question here. Although interesting and personally challenging, I am split-minded about accepting a project like this. I will be the only developer for this. Should one reject a project that seems to be over-scoped for one's own abilities?

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• License for library developed with commercial program

  - by Overv

  I'm developing a commercial application that largely depends on the functionality of a library that will be developed with it. I'd like to open-source this library, because it offers functionality that is not found elsewhere and can be useful in other applications. However, I will also use it in my own commercial application. I don't want to publish the source of the main application, but it is definitely not a derived work (think of calculator app using GPL licensed library to calculate sine). And if someone else commercially uses the library, I want to require them to publish any changes made. Is the GPL license suitable for this or is LGPL perhaps what I need?

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• Javascript: Avoid this and new - further reading? [closed]

  - by Thomas Deutsch

  I do not want this to end in a sort of religious discussion, i want to collect some sources for further reading on this topic. As shown here: Node.js Style and Structure Point 1: Avoid this and new you can find a good example when it could be better to use closures instead of a prototype, and to make every argument explicit. Ok, i agree - could be nice, but i need to know more. Can anyone recommend a good link? Would this make my code 100% object-pattern-free ? (no factory-, repository-, module- pattern?)

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• How do I become a developer?

  - by ATester

  Since many of you are already there I figured this might be a great place to invite ideas and suggestion for becoming a software developer. My background I have some basic knowledge of programming in VB and C++ from a course I had pursued 8 years ago. My main drawback is a lack of experience in software since I was in a teaching career until a year ago. I am working as a QA tester and finally got a chance to write some automation tests scripts using C#. I didn't have any prior knowledge of C# but I was able to figure my way through it. Questions Given this context: Would anyone have any ideas as to what would be a good approach to learn enough to actually be able to work as a developer? Does anyone have any suggestions as to what kind of learning path to adopt and which approaches speed up learning curve? Would pursuing university course be helpful in terms of knowledge gained? Are certification exams a way to go for a beginner? Are community college courses useful? What about courses offered by private institutes/centers? Any suggestion for some good books?

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• Correct architecture for running and stopping complex tasks in the background

  - by Phonon

  I'm having trouble working out the correct architecture for the following task. I have a GUI in Windows Forms that contains a ListBox, listing certain architectural layouts. One an item in this list is selected, a custom Control displays an interactive visualization of the selected layout. Drawing of this interactive diagram is a CPU-intensive task, and can take up to a second on my machine. The kind of functionality I'm trying to achieve is that if a user wants to quickly scroll through the layouts in the ListBox (say, holding down the down arrow key), I don't want my computer to sit there thinking about how to draw the layout before it allows the user to do anything else. The obvious answer is, of course, to run the layout calculations in a separate thread. But how do I make that thread return a whole control? How do I make sure I'm not running two layout calculations at once? I'm fairly new to this complex GUI business. So the real question is what is the right architecture to implement something like this? This seems like something people do all the time, but finding any suggestions on how to do it properly is really difficult.

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• What happened to GremCheck? Is there a viable replacement?

  - by goober

  [Cross-posted on StackOverflow, but thought it would receive a better response here. Thanks!] Hi all, I was a big fan of an app called "GremCheck" that was out a while back, that seems to have disappeared. It was a JavaScript included in a master page that placed an icon at the bottom of the page. It was used during testing. You could define your own tests, and the box could pop up per page and viewers would answer the questions you define (such as "Does this page have the correct title?", "Is the Grammar Correct", "Does the design look consistent"). This was useful for end-user tests groups and quick testing for developers if time was squeezed on full functional testing. Anyone know where GremCheck went, if I can get to it, and if there's anything out there that does something similar? Thanks for any help you can give!

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• Are these advanced/unfair interview questions regarding Java concurrency?

  - by sparc_spread

  Here are some questions I've recently asked interviewees who say they know Java concurrency: Explain the hazard of "memory visibility" - the way the JVM can reorder certain operations on variables that are unprotected by a monitor and not declared volatile, such that one thread may not see the changes made by another thread. Usually I ask this one by showing code where this hazard is present (e.g. the NoVisibility example in Listing 3.1 from "Java Concurrency in Practice" by Goetz et al) and asking what is wrong. Explain how volatile affects not just the actual variable declared volatile, but also any changes to variables made by a thread before it changes the volatile variable. Why might you use volatile instead of synchronized? Implement a condition variable with wait() and notifyAll(). Explain why you should use notifyAll(). Explain why the condition variable should be tested with a while loop. My question is - are these appropriate or too advanced to ask someone who says they know Java concurrency? And while we're at it, do you think that someone working in Java concurrency should be expected to have an above-average knowledge of Java garbage collection?

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• dot42 vs Xamarin to develop in C# for Android phones [on hold]

  - by opt

  does anyone have experience with both dot42 and Xamarin to develop C# apps for Android? Could you please say why one should prefer one over the other? I like the free Visual Studio integration that is offered by dot42 (while Xamarin requires a subscription for this, and the business one which is quite expensive). I would also like to know if Visual Studio integration actually means that one could use all libraries available for desktop apps. Thank you.

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• Places to store basic data

  - by Ella

  I am using PHP. I'm building a fully modular CMS, which is destined for the public. Some people might view this as a framework, but I intend to write a set of extensions for it, extensions that will make it a CMS :P Because it's completely modular I have a problem figuring out how to load extensions. Practically I need to get the list of active extensions, so I can load them inside my base class. I load them by reading some file headers, which contain a "dependency" field. That field decides the order in which I have to instantiate the objects. The problem is that when the CMS starts I have no database interface, because that's an extension too, so I can't store the active extensions list in the database :) You might ask how are extensions activated in the first place. Well - in the administration interface, which is an extension as well (obviously on first install of the CMS there will be some extensions active by default). Could writing that list inside a text file be a solution? The problem is that a lot of hosts are not very nice with scripts when they write files. And since this CMS is public I might have a problem here?

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• What is the worst software bug in history? [closed]

  - by Amir Rezaei

  By having for example money and human suffering as the metric. What is the worst software bug in history? Note this is a specific question. Last month automaker Toyota announced a recall of 160,000 of its Prius hybrid vehicles following reports of vehicle warning lights illuminating for no reason, and cars' gasoline engines stalling unexpectedly. But unlike the large-scale auto recalls of years past, the root of the Prius issue wasn't a hardware problem -- it was a programming error in the smart car's embedded code. The Prius had a software bug.

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• How to sell Agile development to (waterfall) clients

  - by Sander Marechal

  Our development shop would really like to do more agile projects but we have a problem getting clients on board. Many clients want a budget and a deadline. It's hard to sell a client on an agile project when our competitors do come up with waterfall-based fixed deadlines and fixed prices. We know their fixed numbers are bad, but the client doesn't know that. So, we end up looking bad to the client because we can't fix the price or a deadline but our competitors can. So, how can you get your sales force to successfully sell a project that uses agile development methods, or a product that is developed using such methods? All the information I found seems to focus on project management and developers.

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• What is the best way to handle dynamic content?

  - by user1561753

  So we run a site where there are elements of the interface that could potentially be changed at any moment in the backend. Specifically we run a web service where certain functions are loaded dynamically. However, there are times where we remove certian functions and we want the experience to be as seamless for the user as possible. Now we've considered a few methods of solving this Ping the server every few seconds. If the functions are outdated/no longer available refresh the users page. While this would work the best, I feel like having that much IO can't be too good When the user clicks a function, if it's outdated/no longer available, alert them in the response and refresh the page. This would also work fairly well. I guess I'm more wondering how web apps like Google Docs work where you have content that has to be synced up across multiple users and that isn't more than a few seconds outdated Sorry if this isn't the best place to ask this. I figured this was more of a site architecture question and that this might be the place to ask it over SO.

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• Using 'new' in a projection?

  - by davenewza

  I wish to project a collection from one type (Something) to another type (SomethingElse). Yes, this is a very open-eneded question, but which of the two options below do you prefer? Creating a new instance using new: var result = query.Select(something => new SomethingElse(something)); Using a factory: var result = query.Select(something => SomethingElse.FromSomething(something)); When I think of a projection, I generally think of it as a conversion. Using new gives me this idea that I'm creating new objects during a conversion, which doesn't feel right. Semantically, SomethingElse.FromSomething() most definitely fits better. Although, the second option does require addition code to setup a factory, which could become unnecessarily compulsive.

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• Using macro as an abstraction layer

  - by tehnyit

  I am having a discussion with a colleague about using macro as a thin (extremely) layer of abstraction vs using a function wrapper. The example that I used is Macro way. #define StartOSTimer(period) (microTimerStart(period)) Function wrapper method void StartOSTimer(period) { microTimerStart(period); } Personally, I liked the second method as it allows for future modification, the #include dependencies are also abstracted as well.

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• Assignments in mock return values

  - by zerkms

  (I will show examples using php and phpunit but this may be applied to any programming language) The case: let's say we have a method A::foo that delegates some work to class M and returns the value as-is. Which of these solutions would you choose: $mock = $this->getMock('M'); $mock->expects($this->once()) ->method('bar') ->will($this->returnValue('baz')); $obj = new A($mock); $this->assertEquals('baz', $obj->foo()); or $mock = $this->getMock('M'); $mock->expects($this->once()) ->method('bar') ->will($this->returnValue($result = 'baz')); $obj = new A($mock); $this->assertEquals($result, $obj->foo()); or $result = 'baz'; $mock = $this->getMock('M'); $mock->expects($this->once()) ->method('bar') ->will($this->returnValue($result)); $obj = new A($mock); $this->assertEquals($result, $obj->foo()); Personally I always follow the 2nd solution, but just 10 minutes ago I had a conversation with couple of developers who said that it is "too tricky" and chose 3rd or 1st. So what would you usually do? And do you have any conventions to follow in such cases?

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• Interview approaches and questions for a software developer intern

  - by maple_shaft

  What are some good ideas, common approaches and appropriate questions that you would bring when interviewing a software development intern to join your team? I really don't have expectations of any kind for this person, I understand that as an intern with no prior work experience that he won't have much to bring to the table. I am more or less looking for a good attitude and somebody willing to learn. What would be appropriate if you intend to put this intern 70/30 (QA Testing/Coding)? Would that be a good internship experience in your opinion?

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• Google Dart vs CoffeeScript? Which one should one learn?

  - by garbage collection

  I was thinking about learning CoffeeScript some time in the future. In the mean time, Google came out with Dart that seems to do what CoffeeScript does. Google says: Dart code can be executed in two different ways: either on a native virtual machine or on top of a JavaScript engine by using a compiler that translates Dart code to JavaScript. This means you can write a web application in Dart and have it compiled and run on any modern browser. Does anyone know advantages and disadvantages of learning Dart or CoffeeScript?

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• Schema.org vs microformats

  - by Tordek

  They both server the same purpose: providing a vocabulary for semantic markup. Schema is recognized and standardized... but microformats are open. Schema exploits microdata, while microformats go on classes. (Of note: microdata means that an element must be of a single itemtype, while microformats allow several classes to apply to the same element. I can markup xFolk+hAtom with classes, but not with microdata.) Is this a black-and-white situation? Google says I can't use both "because it may confuse the parser". What's the consensus on these?

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• How can I keep track of all the websites I've made like a proper business would?

  - by Mile

  A few other students and I are forming a group that wants to become good at what we do: websites. We are making websites for free for friends at the moment in order to get ourselves some experience and to learn from each other. We are about to finish our first website this week. In 6 months time we plan to have a portfolio and hope to start charging for websites. The issue is that we are all beginners and we are unsure about how to keep records of the websites we do. It is important as we may want to maintain a few websites or add to them later on. How does a proper web design business keep records of all info needed? Is there a program or software package we can use?

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