Write a method that returns the number of dashes appearing at the start or end of 'str'. Only dashes at the start or end count. Do not count dashes in the middle of the string. If the string is only one character long, and that character is a dash, it only counts once. Look at the test data for examples. The ONLY string methods you are allowed to use for this problem are: .length .equals .substring (both forms) .charAt .toUpperCase .toLowerCase