String 리턴 함수 예제

- (NSString *)stringForTemperature:(int)temperature base:(int)base {
    if (temperature > base) {
        return @"HOT";
    } else if (temperature < base) {
        return @"COLD";
    } else {
        return @"MEDIUM";
    }
}

- (void) otherFunction {
    NSString *temperatureString = [self stringForTemperature:A base:B];
}