Welcome to JavaRanch I see you are cisatlantic, otherwise you would have said "parentheses."
I think you have a spelling error in that code; you may have missed out a = sign. I think it looks like a classcast; you are telling the Compiler that whatever is returned from that method call is a "MapView". I presume your book has details of what a MapView is on some other page. There are more details about casting in the Java™ Language Specification, and they are really easy to read.
One statement in this posting is a lie, d*mned lie, or statistic, as Lord Acton would have said.