This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
That is the kind of question you should be able to answer for yourself with existing web resources. For instance, a google search for "java xml tutorial" will turn up this Sun tutorial on XML in java. Bill