* The program String.cpp prompts the user to enter a first name, middle initial, and last name, displays a string with the last name, comma, first name, and middle initial, and performs various string manipulations. */ /* The input is a first name, middle initial, and last name. /* The output is the last name, comma, the first name, and middle initial, the length, size, the location of the comma, the last name as a substring, and the names when the first name and last name are swapped. */