JRuby has become popular for deploying Rails and other web frameworks, but it is also helping to expand the Ruby world beyond Rails. JRuby is everywhere, bringing Ruby to new users and new domains every day. In this session, we’ll show many other examples of JRuby, from mobile devices to …
Kristina Chodorow, a software engineer at MongoDB, talks about non-relational data persistence in Java using MongoDB, a high-performance, open source, schema-free document-oriented database. In the last couple years, dozens of non-relational databases have appeared to solve problems that relational databases aren’t good at. Kristina will go over many of the …
This video removes the duplication in the add and subtract classes by introducing an abstract base class. The end result is a use of the template method pattern. Video Producer: Brett L. Schuchert
In this java tutorial you will learn about: – Boolean expressions – AND – OR – NOT – numerical ranges
An introduction to static methods and constants in Java. Download source code from http://java.martincarlisle.com.
Rick Hillegas (one of the original developers of Apache Derby) will share his thoughts on Java DB (a.k.a. Apache Derby), a free, pure Java relational database, which is co-bundled in the Java 6 JDK. Rock-solid and feature-rich, Java DB nevertheless fits in a 2.5M jar file. Rick’s talk will cover …