If you want to learn for the sake of expanding your knowledge range, Java is a pretty bad choice; there's very little that's novel about Java. The two advantages it has over Clojure right now are are 0) it's much easier to find employment in and 1) Clojure isn't yet suitable for Android development.
I used Clojure and now I'm using a little bit of Java (and reading Effective Java) and I'm pretty glad I'm doing so: interfaces, generics, concurrency, data structures, mutable vs immutable objects, etc etc: most I just ignored when programming Clojure... and they are interesting to know IMO.
(I intend to return to Clojure/Python on the next project because Java really makes CRUD style web programming a PITA).
Comments
If you want to learn for the sake of expanding your knowledge range, Java is a pretty bad choice; there's very little that's novel about Java. The two advantages it has over Clojure right now are are 0) it's much easier to find employment in and 1) Clojure isn't yet suitable for Android development.
I used Clojure and now I'm using a little bit of Java (and reading Effective Java) and I'm pretty glad I'm doing so: interfaces, generics, concurrency, data structures, mutable vs immutable objects, etc etc: most I just ignored when programming Clojure... and they are interesting to know IMO.
(I intend to return to Clojure/Python on the next project because Java really makes CRUD style web programming a PITA).