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 ...

Most Java developers who come from a C/C++ background have probably at one time wished for a Java equivalent of sizeof(). Although Java lacks a true sizeof() equivalent, the Instrumentation interface ...

Object strings create two objects, whereas primitives create just one. Object strings create the string literal and the variable to refer to it. The two string types are stored in memory differently.

I need to figure out a way to convert a user defined type to a byte array and be able to reconstruct that type from the byte array. So far, what I came up with was to convert each variable in the ...