Why would one use Scala over Java [closed]

As it currently stands, this question is not a good fit for our Q&A format. We开发者_JAVA技巧 expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 11 years ago.

I am totally into Scala as a language ... and still I struggle with why any company should use Scala over Java. Is Scala just syntatic sugar on top of the JVM or are there fundamental improvements in Scala over Java that would improve real world applications?