(1) Prompt the user to enter a string of their choosing. Output the string.
(2) Complete the getNumOfCharacters() method, which returns the number of characters in the user’s string. We encourage you to use a for loop in this function.
(3) In main(), call the getNumOfCharacters() method and then output the returned result.
(4) Implement the outputWithoutWhitespace() method, which outputs the string’s characters except