Is there a good comparison between Functional Java and Guava?

Question

I\'d like to use either Functional Java or Guava (or less likely Scala) in a course I\'ll be teaching. Although there are lots of functional languages that run on the JVM I

Answer 1

As stated above, Guava is just a Java library -- a Java 5 compatible library, even (as of release 11). The position of Guava on functional programming is summed up by Kevin Bourrillion:

“The syntax sucks. At the same time, this stuff is now, has always been and will always be nothing but a stopgap measure until the right language change can come along, at which time we can finally really decide on the optimal syntax and have functional-style programming start actually making lives better in Java for once. So I’m undecided how much effort to put into the Function/Predicate stuff; it’s in the library more because it sort of had to be, not so much because we think it’s a crown jewel.”