Venkata Rammohan Chittajallu

Look at this, http://testa.roberta.free.fr/My%20Books/Computer%20programming/Java/Apress%20Beginning%20Groovy%20and%20Grails%20From%20Novice%20to%20Professional%20Jun%202008.pdf if you feel it is good and want to for a paperback edition, you can go ahead. http://www.infoq.com/resource/minibooks/grails-getting-started/en/pdf/GettingStartedwithGrailsFinalInfoQ.pdf this will also help you , but you need to have some knowledge on groovy.

Java is a programming language with all the features that other programming languages provide. But, Java is more advanced than them since it is designed around objects (with the support of Objec-oriented pricnciples) , platform-independency, auto-boxing/unboxing, generics, in-built support for algorithms like sorting,searching through the . java.util package (also known as collections framework). With the advent of the web-based applications, Sun has introduced advanced concepts in Java such as Servlets. Slowly to support the applications which work on PDAs (like pagers) Sun introduced some mobile components into Java. All the above is something clumsy right...Sun microsystems also felt the same way. So, they have divided the Java components into three categories such as: 1.Core components of Java (such as the language features, I/O, data structures, socket programming etc...) 2.Web and enterprise related Java (such as Servlets,JSP etc...+ EJB, JTA, JAAS,JMS,JavaMail etc..). 3.Mobile components. So, Java is divided into three EDITIONS: 1.J2SE (currently known as JSE) : Java Standard Edition. 2.J2EE (Currently known as JEE) : Java Enterprise Edition. 3.J2ME (currently known as JME) : Java Micro Edition. (most of the people say JME as a mobile edition, but the abbreviation is Java Micro Edition. ). Hope this cleared out your question, if not you can contact me for more queries.