This is an in-depth java tutorial for beginners. Learn what Java is, how to get started, and how to build basic apps using key concepts!

Reference objects aren't just useful when memory is at a premium; they can also be used to provide slick caching abilities to any application.

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 ...

Object-oriented systems are usually partitioned into layers of related responsibilities and only dependencies in one direction are allowed, from higher layers (more specific, less reusable) to lower ...

The Java Function interface is quite simple. It takes a single Java object as an argument, and returns a single Java object when the method concludes. Any method you can conjure up takes an object and ...

Here's everything you need to know about Java operators and operator types, and how to use them to write expressions for your Java programs.

The Reset Button Code in Java. Java is a programming language developed by James Gosling at Sun Microsystems. The general-purpose, object-oriented language is designed to be written once; the code ...