Question

I have built a music store program similar to iTunes in Java and and want to deploy it to the web. But when I go to Heroku App and see the demo application, its completely different. They say we need to upload a web application. Same thing in Google App Engine where they specify that we have to download the Google Plugin to Eclipse and the SDK and create a web application project.

I am using Eclipse and don’t want to rewrite my whole application again?

Answer 1

A Web Application is a program coded in a server side language : PHP,ASP…JSP in java’s case.
The difference is that a web application will reside in the server instead of the client’s computer and will process everything in the server – but , the control of the program is left for the client. A good example for a web application is this site. When ill press “Post Your Answer” button , a command from my ,client side computer, will be sent to Stackoverflow’s web application and all necessary things that should be processed to publish this answer will be processed on the Stackoverflow’s server.

About your application, you have two options:

1. Seperate the UI from the inner logic and rewrite the UI as a Web Application
2. Not the best option: Convert your App to an Applet and embed it inside a web page(a part of your web app).