This "stupid question" is about JAR files. I know I can put all my classes in a JAR file, but what else does it do for me?
Binildas C. A. shows how to use Tomcat to create web applications that withstand high loads of concurrent users.
John Ferguson Smart introduces Apache Continuum, an open source continuous integration tool.
Michael Jouravlev introduces the JSP Controls Tag Library, a portlet-like JSP library that allows for stateful, self-rendering web page components that interact with Ajax.
This "stupid question" is about the JavaOne Conference. My company is paying for me to attend. When should I get there? What should I plan on doing? What shouldn't I bother doing?
Kobi Krasnoff introduces game development in Java ME by showing the pieces that make up a simple basketball game for mobile phones.
Ulrik Sandberg and Mattias Arthursson introduce LdapTemplate, a Spring-based library to simplify working with LDAP from Java.
JSR-223 brings scripting languages to the Java platform, complete with the ability to work with Java objects and thus the extensive Java class libraries. Thomas Kunneth has an introduction to its early implementation in Mustang.