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Ask Slashdot: Tips For Designing a Modern Web Application?
New submitter sdoca writes "I am a Java developer and for the past number of years I have mainly been working on server side code. I have an idea for a webpage/application that I would like to develop. For the general public, it will be a site where they can view upcoming events, filter them by type, date etc. and view details of events they're interested in. There will also be an admin section to the app where organizations who want to post their events can log in and set them up. In the long term, writing a view-only version as an Apple and/or Android app is on the radar, but I want to focus on the generic web app for now. I'm not sure what languages/frameworks to look at using for the webpage portion of my project. Many (many!) years ago, I wrote some applets. After that I did some work in WebObjects and after that I tinkered with Wicket. I have no experience with PHP and would like to stay in my Java comfort zone as much as possible, but want to use the right tool. I'm concerned about browser compatibility issues. Chrome didn't exist when I last did web page development. I'm looking for good resources (books, internet) that will guide me through the potential issues and your recommendations for a web development framework."
GWT is good if you want to create a RIA, when the presentation logic is so complex developing it in javascript is a nightmare, but without having to use Flash or silverlight. If the presentation is simple enough however, I would stick to HTML5 + jQuery. In fact the "simple enough" bar in that last statement is gradually pushed forward.
As a rule of thumb I'd say if you have a lot of moving parts on the page and you are basically creating a desktop application inside the browser ala Google docs, then consider GWT. Otherwise it will do more harm than good.
Google is not a PHP/Python shop. The four development languages are C++, Java, Python, and Go.
Gmail is indeed written in Java.