In this article, Robert Simmons Jr shows us the 7 easy ways to improve legacy code..

ONJava shows us how to use Java’s dynamic proxies in order to obtain the same functionality as C#’s delegates in this article..

When and how to use exceptions? This article offers an approach..

A great article on metadata and aspect oriented programming. It’s nice to see AOP come of age..

Developerworks has an article on how to do Screen scraping using XQuery. I did my share of screen scraping in my day so this may come in handy..

Cedric Beust has some comments on his experiences using JavaCC and Antlr.

Using the instructions here, you can use GCJ to create SWT applications that are fully native, even if you wrote them in Java..

This article at developerworks describes how to use the new Look and Feels for JDK1.5, which include a metadata-driven look and feel controlled by an XML file (Synth)..

Runtime code generation is another way to execute arbitrary code at runtime. It is different from reflection in that once you have generated this class, it is much faster and the generated class can be cached and reused over and over again.