On Mon, Apr 15, 2013 at 11:31 AM, Martin Buchholz <marti...@google.com>wrote:
> > OTOH, I'm guessing you are trying to improve the performance of operations > like List.toString. > More efficient (single copy char[]) would be to collect all the > sub-CharSequences in a CharSequence[], pre-compute the final length of the > char[], allocate an array of exactly the required length, and create the > final string directly from that using the package-private constructor (but > in the unlikely event that a subsequence changed in size while concat'ing, > be prepared to resize the array). > Proceeding further along this train of thought, I might start with AbstractCollection.toString() (and similar methods) and attempt to make it maximally efficient. Maybe add a method to JavaLangAccess to make a String directly from a perfectly sized array (as needed elsewhere?). Maybe create a StringBuilder-like class that works better for typical use cases? Software is hard.
