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.

Java Web Services #Interview Questions and Answers ?

Q. What are the different application integration styles?

A. There are a number of different integration styles like

1. Shared database
2. batch file transfer
3. Invoking remote procedures (RPC)
4. Exchanging asynchronous messages over a message oriented middle-ware (MOM).