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I'm going to make a web app using html5.
The app are going to be able to send a push notification to the phone even if the web app isn't used. Is this possible?
This is not possible natively in browsers yet, though W3C standards for browser-based push notifications are finalizing this year.
http://dev.w3.org/html5/eventsource/
The only options are to:
wait for Apple, Google, etc to implement the W3C recommendations in their browsers (if I were to guess, probably late 2012, early 2013)
have users install a native app that pushes notifications on behalf of your web app (like AlertRocket)
use SMS text messages through an SMS subscription service
Looks like Google Chrome allows for cloud messaging (GCM).
https://developer.chrome.com/apps/cloudMessaging
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I want to create a website that has a map that will track my phone's location. I'm not asking for specifics here. Just is it possible to do without creating my own app on my phone and using the Google Maps API or is there a lot more that I need?
You'd need two apps:
A server application that listens to the phone and displays the phone's location
An app on your phone that reports the geolocation to the server
Both should be fairly trivial, but it does mean you'll have to have the server application hosted somewhere. You can't just "pull up" the phone's location remotely - that would be a massive security hole. Imagine if a stalker got a hold of that...
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What is the name where the application shows messages of any updates available whenever the update is available?
Is it called web service?
For example, I have installed an antivirus (avast); sometimes a small popup message shows that an update is available.
I have very vague idea about it, it must be contacting the server periodically for checking the new updates are available or not.
I do not know what the application name is so I was not able to search.
It's called an auto-update software feature. It's part of the software itself usually - If you'd like to look at some API's regarding implementing them into your application, find out more here. WinSparkle is also something you could look into if your doing Windows development.
Those are vendor dependant solutions. It is usually not a separate software checking for updates. All they do is query a web service that replies with the 'current' version. At least as long as talking about MS-Windows. More elegant and efficient solutions exist in the Linux environment.
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First, is Google+ project open source? I readed some time ago that google+ is entirely written in google closure and I would like to ponderate a real big enterprise implementation of closure as could be google+.
You can Check The following link. There you can find a lot about google products and open source packages and programs.
No, Google+ is not open source. Google provides a number of APIs that provide developers with access to a subset of Google+ features and there are "client libraries" (libraries written in a variety of programming languages) for using these APIs. Many of the client libraries are open source. Google+, itself, is not open source however. As to your question about Closure, you should keep in mind that Google+ consists of both the user interface that you see in your browser as well as server-side code that processes and stores this data... moreover, there is more to the UI than just JavaScript (e.g. CSS and HTML), so even if all of the JavaScript in the UI used Closure... there would still be plenty of other stuff.
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I have writen an app for the computer in java, but i don't want to give it out for free. I only want to charge somewhere between $0.99 - $2.99, is there a website that i can upload it to, to do this for me. I am looking for something like the apple app store, or the android market, but for the computer. Does this exist?
A quick google search came up with this. Allmyapps is a place where you can buy and sell applications (Windows only, as far as I can see), and it also seems that it can manage the installation process (for example, combining the installation of several apps into one, thus making system rebuilding very easy).
Check out their terms of service for developers here. As I can see, you can sign up for free, and keep 80% of sales revenues.
This question should be moved to Programmers.SE, but the only PC "app store" I'm aware of is Intel's AppUp.
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I have an application deployed in Air, written in AS3 that the client wants to install and test, I have developed a simple license app, but he is pushing for a full license which he said he will fully pay on next Monday.
How would you create a procedure in AS3 to deactivate application next Monday? How secure will it be? Will simply changing machine date bypass this?
Changing the machine date will easily bypass your security mechanism. You need something more robust, which cannot be controlled by anybody other than you.
If your application is going to run connected to the web, you might be able to poll a remote server to see if the application is allowed to run or not. This is more flexible in that you can control the validity of the application without embedding dates into it.
There might even be off-the-shelf commercial components that do this for you.
But a more serious problem is that you have reason to distrust your client. Maybe you can collect part of the money when you deliver a limited-period beta and take it on good faith that he'll give you the remainder later.