Using JRuby

Using JRuby helps experienced Java hands and Rubyists see what's on the other side of the fence--and bring the best of Ruby to the broad universe of Java environments. You'll learn how to call Java code from Ruby, and vice
versa. You'll gain first-hand experience with dozens of JRuby's most common uses, from running web sites to
building GUIs. And you'll see how it's all put together under the hood. JRuby lets you merge the best of several
possible worlds, so you can create unique software using the best tools available.