What is GWT ? Why we want to use GWT ?

GWT :

Google Web Toolkit (GWT) is an open source Java software development framework that makes writing AJAX applications easy.


With GWT, you can develop and debug AJAX applications in the Java language using the Java development tools of your choice. When you deploy your application to production, the GWT compiler translates your Java application to browser-compliant JavaScript and HTML


The reason of using GWT :

you will write in using Java technologies which offer a productive development plaform, and with GWT, it can instantly become the basis of your AJAX development platform as well. Here are some of the benefits of developing with GWT:

• You can use all of your favorite Java development tools (Eclipse, IntelliJ, JProfiler, JUnit) for AJAX development.
• Static type checking in the Java language boosts productivity while reducing errors.
• Common JavaScript errors (typos, type mismatches) are easily caught at compile time rather than by users at runtime.
• Code prompting/completion is widely available.
• Automated Java refactoring is pretty snazzy these days.
• Java-based OO designs are easier to communicate and understand, thus making your AJAX code base more comprehensible with less documentation.
• Open source :)