Bob Lee explains the popularity of Java, future language features like Lambdas, DI with Guice vs. the Dagger framework, the role of Java vs. Ruby at Square, hiring at Square, security and much more.
Attila Szegedi talks about performance tuning Java and Scala programs at Twitter: how to approach GC problems, the importance of asynchronous I/O, when to use MySQL/Cassandra/Redis, and much more.
Dr Nic Williams talks about the state of the Rails community, the reasons for supporting JRuby and Rubinius implementations and for creating RailsInstaller.
Orion Henry explains what make Heroku's PaaS tick, in particular the new extensible Cedar stack as well as Doozer, the implementation of the Paxos algorithm created at Heroku.
Venkat Subramaniam talks about the characteristics of JVM languages like Groovy, JRuby and Scala, and their applicability in enterprise applications. He also mentions several implementation details and finishes by addressing issues of lifelong learning for developers.
Dean Wampler discusses the state of Scala: the big changes in 2.8, the Scala on .NET, concurrency and parallelism with Scala and Akka, and experiences with adoption of functional languages.
Yehuda Katz talks on how Rails 3.0 has been received by the community, what are the differences compared to other similar frameworks, the impact of having different Ruby implementations, and what’s coming in Rails 3.1.
Relevance, Inc. co-founder Stuart Halloway discusses Clojure and functional programing on the JVM in depth, and touches on the uses of a number of other modern JVM languages including JRuby, Groovy, Scala and Haskell. He also makes a case for structural edit modes in IDEs, and shares some of his favorite IT books.
This interview begins with a discussion of functional programming, the use of Scala by programmers trained in Java and the differences between purely functional languages like Haskell and hybrids like Scala. Later in the interview other programming languages are discussed along with the notion of programming paradigms and the need for combining both paradigms and languages to best solve problems.
In this interview from RubyFringe, John Lam talks about his work on IronRuby and how Microsoft is approaching Open Source software development.
Nick Sieger talks about the future of JRuby, Java Integration, and his work on JEE deployment tools for Ruby on Rails like Warbler.