NSDate *currentDate = [NSDate date];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"YYYY"];
NSString *dateString = [dateFormatter stringFromDate:currentDate];
NSDate *currentDate = [NSDate date];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"YYYY"];
NSString *dateString = [dateFormatter stringFromDate:currentDate];