JetBrains gained a lot of attention when they released an open source version of thier IntelliJ IDEA development platform. For Ruby and Ruby on Rails users, JetBrains created the RubyMine IDE, which is built on the principles of IntelliJ. However, RubyMine did not start out as a plugin like comperable Ruby IDE's for Eclipse and NetBeans. In an exclusive interview, DZone spoke with RubyMine's lead developer at JetBrains, Dmitry Jemerov. The interview covers the recently introduced RubyMine 2.0, which features improved code refactoring and added support for popular Ruby/Rails technologies. Although RubyMine hasn't been around for very long, it has quickly become the one of the most natural Ruby/Rails development environments.

This article shows off a Ruby gem which has the power to overwrite a Ruby binary in memory while it is running to allow your code to execute in place of internal VM functions. This is useful if you’d like to hook all object allocation functions to build a memory profiler.

The recent release of JRuby 1.4 already ships as as an OSGi bundle. I’ve never mixed Ruby with Java before, so I took it as an opportunity to learn more. This blog explains how to write a Twitter Search UI for Eclipse, using Ruby’s http and JSON libraries to talk to twitter.com. Read on to learn how to install JRuby on your system, make it work with Equinox and mix Java with Ruby code.

The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below two million