Obviously a JVM stack developer is going to know Java. But in this world of polyglot programming, knowing a bit of JavaScript, Ruby and Scala as well is a must. In fact, it might even make you a ...

How did Twitter handle election tweets? Less Ruby, more Java As Twitter continues to tweak Ruby performance, it moves more to JVM on servers.

Programming languages: C++ overtakes PHP, but JavaScript, Python and Java still rule While the most used programming languages remain stable, there's quite a lot of change elsewhere.