Assume that the function call operator() is overloaded for data type String in the usual sense of selecting a substring from a larger string. For a String object string1 with the character string "ABCDEFGHI", what string does string1(4, 2) return?
A) "EF"
B) "EFGHI"
C) "CDEF"
D) "CD"

Question

Quizplus · Accepted Answer

string1(4,2) means selecting the substring starting from index 4 (inclusive) with a length of 2 characters. So, starting from index 4, we have "EF" as the substring. Therefore, the answer is A.

Assume That the Function Call Operator() Is Overloaded for Data