Java collection/map apply method equivalent?

Question

I would like to apply a function to a Java collection, in this particular case a map. Is there a nice way to do this? I have a map and would like to just run trim() on all t

Answer 1

You'll have to iterate over all the entries and trim each String value. Since String is immutable you'll have to re-put it in the map. A better approach might be to trim the values as they're placed in the map.