public static void groupByNumChars(List> map = new.. // Choose the appropriate map class For each movie, you can use the String class's length function to get the number of characters If the map doesn't already have an entry for this length, create a new entry (use the map's put method). If the map already has an entry for this length, first call the map's get method (which returns a reference to a list), then add the movie to the list. Do not use a single String to store more than one movie, because it will slow down the runtime (but a StringBuilder is ok