Java tutorial for beginners part 3 - Importing classes, try blocks and more! In part 3 of this series we'll learn how to import additional classes and use try blocks and maps.

Java uses empty interfaces to tag, that is, mark object classes that are to be singled out for special treatment. Empty interface examples include Cloneable, Serializable, and UIResource.

This article shows how to use the Apache Commons JXPath component to easily query complex Java object trees for data using the XPath expression language. It covers both basic and advanced features ...