Question

I have a certain confusion on how to return values in Objective C with NSString return type but having variables inside it.

Is this okey?

- (NSString *)returnInfo{
    return @"Userinfo:\nusername: %@\npassword: %@", self.username, self.password;
}

Your answers are highly appreciated…
Thanks…

Answer 1

It should probably be

- (NSString *)returnInfo{
    return [NSString stringWithFormat:@"Userinfo:\nusername: %@\npassword: %@", self.username, self.password];
}

Your code would probably compile too, but it would return password, because of the way the comma operator works. This is almost certainly not what you had in mind, though.