How online application/simulators made and work? are they cloud based application?

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Hello to all

I have come across many online software/compilers/simulators. I am supper impress with the ability of such online applications but have no idea how can I make such applications.

Link of a few online applications are as follow:

Online Compilers IDE
Online C#.NET Compiler[^]
Another One[^] Lots of other language compilers are available here...
and most amazing one heaving all lenguage compilation utility IDEONE[^]

Online Circuit Simulators
Circuitlab[^]
Partsim[^] and
Docircuits[^].

My question is if I want to create such online utilities from where I need to start? are they cloud based SAAS utilities? which development environment I prefer and go through to start such developing such utilities?

Posted 11-Oct-13 18:11pm

Hitesh Rohilla

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Sergey Alexandrovich Kryukov 12-Oct-13 1:25am

How can a stranger can tell you where you can start? What do we know about your? Start from learning some programming until you fantasy will be able to tell you how to develop such things. I don't really know where your confusion is. What's the problem?
—SA

Hitesh Rohilla 12-Oct-13 2:29am

Sergey I understand what you want to tell me. well for experience I am doing programming from last 8 years and have experience a lot in programming techniques... language didn't matters me a lot its just utility the language provide cause a lil interruption between me and final product. I have already implemented and deployed many of my software and websites on 12 different programming languages. even I have 5 year experience in developing firmware applications start from assembly to C# and JAVA.

What I don't know is current trended cloud based services e.g. SAAS. and yes I am also improving my skills in HTML5 unlimited abilities over internet.

What I want to know curiously how above provided utilities work on internet. I mean how these compilers are working online over a web browser. I know its a matter of fact and thinking and I may also can choose my native environment. but before starting I want to know which environment will be best for such development on the bases of experience of peoples who already have experienced such development.

and sergey I apologise you for my previous behaviour. that was a developer's frustration on deadline :). hope you understand it.

regards
Hitesh

Homero Rivera 12-Oct-13 2:33am

I guess that makes my 20 minute response useless. Beats me! Sergey, I'll be a real inquisitor like you from here on!

Hitesh Rohilla 12-Oct-13 2:35am

Homero Rivera

Thanks for your reply its nice reply when you don't know about stranger as told by Sergey :)...

Hitesh Rohilla 12-Oct-13 2:39am

I think I should provide more details... and I will do this from next time... apologise for you too... but your reply may be very helpful for beginners. and I cannot say its just for beginners. it has everything according to my question in general. for specific I am waiting for more replies...

Homero Rivera 12-Oct-13 2:48am

Well, thank you for upvoting. I understand you can't accept as solution cause you wouldn't get more replies.

I might then start writing articles using that as a base.
Good luck!

Sergey Alexandrovich Kryukov 12-Oct-13 20:00pm

We're good. Well, you did not mean the "best", and the "best" usually makes no sense, because you cannot just write the predicate which answers what's better, because it does not only depend on two technologies under comparison, but on many other factors. What I mean is: with some minimal experience and knowledge, it's not too hard to understand how such development tool can be implemented online. After all, the build engine (compiler and all the rest) does exist. You need to feed some data to it, source code and all its changes. In response to some command like "build", it should build the project. There is no essential difference if the Web lies between the developer and the system or not. The model of interaction is the same. And then, you need to have some runtime system on the server side. What's the problem? The application works entirely on server side, can be debugged, etc. It's like having a remote keyboard and screen while developing a Web application. Do you see the idea? I see nothing principally difficult, just work to do...
—SA

Hitesh Rohilla 13-Oct-13 1:04am

hay sergey that's what everybody know. I mean its true nothing is best after all everything has its own prows and cons and yes development meant same whether its on-line or offline but the thing is I don't want to stuck in between due to performance issues of product just because I have choose some platform and something else may be batter on that particular condition. I know every problem has its own solution. If it develop as my idea its my first development of this kind, I am curious about it and I just want to consult with experience peoples. I mean nothing bad in consulting or getting knowledge from experience peoples... and that's why I raise my question here.

the consulting may result in a good analysed list that may include easiest API that they have used. or may be some problems that they face during development time and how they resolve it.

well surgey here in India people use opensource technology too much without knowing anything about it. and I want to do it on opensource trend. and even I have little knowledge of open source development. I just know the names like GIT, google code projects. I think you can guide me. as on this quest I really have no idea where to start. can I have this favour from you brother?

Sergey Alexandrovich Kryukov 13-Oct-13 1:18am

Well, of course not all problems have solutions, and in some cases, it was strictly proven. In contrast, the problem you described looks totally solvable and I see nothing principally difficult. The major difficult part is the serious volume of work. This little complication drives this discussion of of the format of this Quick Questions & Answers forum... :-)
—SA

Hitesh Rohilla 13-Oct-13 1:25am

:) people here pronounce a word in Hindi lenguage "Sir Ji" here "Ji" is for respect after name like "sergey ji" but your name itself pronounced equivalent "Sergey" = "Sir Ji" mean respected sir... you deserve it...

Sergey Alexandrovich Kryukov 13-Oct-13 12:36pm

This is funny. :-) Thank you for you nice words...
Interestingly, in my culture, "g" in my name should be pronounced as "g" and not as "j" and the stress in on the second syllable, but in English оrthography this is so impossible that nobody can pronounce my name correctly, except those who know me well; same about the last name... :-)
—SA

Hitesh Rohilla 13-Oct-13 1:32am

and yes any source for opensource development process???

Sergey Alexandrovich Kryukov 13-Oct-13 12:42pm

I don't know anything in open source related to online tool, specifically.
You see, even though Microsoft compilers comes for free with .NET framework, at least for those who has legitimate OS license, exposing any of those compilers to the Web users could certainly be a legal issue.

However, you could use open-source compilers, and they do exist, as part of Mono and maybe SharpOS:
http://en.wikipedia.org/wiki/Mono_%28software%29,
http://www.mono-project.com,
http://en.wikipedia.org/wiki/SharpOS,
http://www.sharpos.org/.

Maybe, there is something else...

—SA

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Homero Rivera · Answer 1 · 2013-10-11T19:48:00

Wow! Those apps are really impressive!
I'm not sure what aspect of these online applications do you want to emulate or learn how to program. Cloud-based is not necessary.

Supposing you want to emulate the graphics/drag-n-drop features there are 2 equally valid approaches:
1. Flash / Silverlight / JavaFX
2. Web 2.0 development to the max

Both have pros and cons.

In regards to Flash / Silverlight / JavaFX, the companies that developed them are Adobe-Macromedia , Microsoft and Sun Microsystems (absorbed by Oracle).
These are not really web development, they are programs that are downloaded when you browse for the page. The program is interpreted by a plugin in your web browser (Flash plugin, Silverlight PlugIn or JavaFX plugin). The program is shown on the browser thanks to an object HTML tag...

HTML

<object ...=""></object>

All 3 require you to study a language and class library to develop the vector graphics, animation as well as interaction between elements.

Nonetheless, in theory, plugin programs (the aforementioned) are being replaced by Web 2.0 development. Web 2.0 does not refer to an all-new platform but a trend on how AJAX, Javascript and HTML5 are being used. Javascript (not to be confused with Java) and HTML (HTML5 in particular) are platform-indepent, as you may already know. No need for plugins; any recent version of most web browsers can perfectly run any development.
with extensive use of these tools you can drag-n-drop, highlight on mouse over, program events, etc. You may also need some good backend such as PHP or ASP.Net.

However javascript alone, from scratch, would be too much work to achieve something in a reasonable amount of time. A solution to that are javascript libraries (most of them for free) where someone else already worked out the brain-wreaking programming so you can just call a method to do something amazing.

Extract from Wikipedia:
The client-side (web browser) technologies used in Web 2.0 development include Ajax and JavaScript frameworks such as YUI Library, Dojo Toolkit, MooTools, jQuery,Extjs and Prototype JavaScript Framework. Ajax programming uses JavaScript to upload and download new data from the web server without undergoing a full page reload.

My favorite javascript library to do amazing things is scriptaculous (http://www.script.aculo.us), take a look at that and you'll see pretty amazing things with just javascript and no plugin development.

There is no difficult in using a javascript library: You just download it to your PC, put it in a folder related to your web development, include the next tag in your HTML: