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In short, you write, test and debug your client-side code in Java and let GWT cross-compiler convert it all into cross-browser JavaScript. When compiled the Client-side is now pure JavaScript and HTML. So, Rich Webapp built with GWT requires no browser plug-ins, no Web Start or JVM, no downloads, no special installations.
GWT Cross-Compiler compresses the JS naming and obsfuscates your code to the shortest possible length. With GWIT you "
Only pay for what you use!
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So, The GWT Cross-Compiler prunes unused classes, methods and attributes, from your code. In addition, the Cross-compiler compresses the JS naming and obsfuscates your code to the shortest possible length.
In fact, GWT can generate faster JavaScript than you can write by hand!In the ideal world, the Java developer would never have to write JavaScript code.
This is the fulfilled promise of GWT...
GWT is all Java
Only one language : JAVA
With GWT, Google bets on the 6 milions Java developers community out of here. Furthermore, Sakai is based on a great stack of Java technologies.
GWT allows rapid development and debugging with common Java IDEs as Eclipse. Development time efficiency is our favorite advantages of GWT.
The built-in library of UI components will look very familiar to Java developers, particularly those having Swing experience.SWING experience. SWING developers just have to learn a different API although, many of the classes have the same names and the same methods than in SWING. It's easy for Java developers to learn GWT and with only a little learning curve.
In the ideal world, the Java developer would never have to write JavaScript code.
This is the fulfilled promise of GWT...
Open Source and Community Initiative
Free and well documented, GWT is not only a Google thing, since its an Open Source initiative under a friendly Apache 2.0 license.
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