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Looking at the cup half full, this is great news for Java, its evolving, its been open sourced, its eco system still growing, so many FOSS projects are Java bas

• jules 18y ago
  Don't forget Clojure! .NET has F#, which is pretty interesting too (more than Scala in my opinion). And IronPython/IronRuby.
• jorgeortiz85 18y ago
  Everything he lists is already available in Scala: * Properties, via Scala's Uniform Access Principle * A form of null handling, via the Option type (like Haskell's Maybe monad) * Indexers, via apply/update methods * Extension methods, via implicits (Scala's implicits are actually much more powerful/dangerous than C#'s extension methods) * LINQ[1], via for-comprehensions * Lambda syntax * Multi-line strings * Type inference As for C#'s future features: * Scala already has co/contravariant typing * Scala will have optional and named parameters soon (maybe 2.8.0?) In addition, Scala has: * Pattern matching and extractors * Lazy evaluation and call-by-name parameters * Mixin composition * Curried methods * Higher-kinded types * Equal footing for immutable data * An Actor library for concurrency Scala's also adding virtual classes soon. F# is also great language, I don't want to say anything bad about it as a language, but unfortunately you're trapped into the Microsoft platform and subject to Microsoft's rules. I'd much rather develop in open-source land. [1] C#'s LINQ is actually more powerful than Scala's for-comprehensions, because Scala lacks C#'s Expression Trees. Hopefully this will be remedied soon.