Given a string, , matching the regular expression [A-Za-z !,?._'@]+ , split the string into tokens . We define a token to be one or more consecutive English alphabetic letters. Then, print the number of tokens, followed by each token on a new line. Note: You may find the String.split method helpful in completing this challenge. Input Format A single string, . Constraints is composed of any of the following: English alphabetic letters, blank spaces, exclamation points ( ! ), commas ( , ), question marks ( ? ), periods ( . ), underscores ( _ ), apostrophes ( ' ), and at symbols ( @ ). Output Format On the first line, print an integer, , denoting the number of tokens in string (they do not need to be unique). Next, print each of the tokens on a new line in the same order as they appear in input string . Sample Input He is a very...
it's always a good idea to keep track of your learning.