void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
int hasil;
int nilai = 6;
char konverensiKe = 'e'; // e = euro, d = dollar

switch(konverensiKe){
  case 'd':
  hasil = nilai * 15759.00;
  Serial.print(nilai);
  Serial.print(" dollar setara dengan Rp.");
  Serial.println(hasil);
  break;

  case 'e':
  hasil = nilai * 17102.85;
  Serial.print(nilai);
  Serial.print(" euro setara dengan Rp.");
  Serial.println(hasil);
  break;
}
}

void loop() {
  // put your main code here, to run repeatedly:

}