This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
You typically use more than Java to build enterprise applications. You use libraries, frameworks, etc.
There are more than one such library and frameworks as you know. You can use Scala with with these
frameworks as well. Furthermore, as we start using the language more, I expect frameworks that better
utilize Scala capabilities for particular problems to emerge.