Write a method that returns a copy of the string 'str' but with all of the characters reversed between pairs of symbols that match 'revSymb'. The 'revSymb' will NOT be included in the new string. As a precondition you are guaranteed that there will be an even number of 'revSymb' symbols in the original string, although zero IS an even number, so that symbol might not occur at all. You are only allowed to use a restricted set of string methods. Those are: .length .charAt .substring .equals. Of course you can also create string variables, perform concatenation, and other built-in string functionality.