This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
No. Java arrays (e.g. char, Object, not collection objects) cannot change size. So the value is a constant for any one array, and the loop has a constant value to compare against. The problem with collection.size() is that it makes a method call for every iteration of the loop.