Question

What is the return type of the front() function?

(a) char

(b) int

(c) long

(d) short

This question was posed to me during an interview for a job.

This is a very interesting question from String Manipulation in section Arduino Programming of Arduino

Answer 1

Correct answer is (a) char

Explanation: The front() function returns a character from the string given as input. It takes in no arguments. It returns the first character that is present in the string. It can be used as “cout<<str.front();” which prints the first character from the variable “str”.