Answer:
Write a recursive, string -valued method, replace, that accepts a string and returns a new string consisting of the original string with each blank replaced with an asterisk (*)
Step-by-step explanation:
Replacing the blanks in a string involves: Nothing if the string is empty Otherwise: If the first character is not a blank, simply concatenate it with the result of replacing the rest of the string If the first character IS a blank, concatenate an * with the result of replacing the rest of the string