Most Java developers who come from a C/C++ background have probably at one time wished for a Java equivalent of sizeof() .

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 ...

Difference between int and Integer The key difference between the Java int and Integer types is that an int simply represents a whole number, while an Integer has additional properties and methods.