void setup() {
Serial.begin(9600);
int x=5;
switch(x){
  case1:
  Serial.println("The choice is 1");
  break;
  case2:
  Serial.println("The choice is 2");
  case3:
  Serial.println("The choice is 3");
  break;
  case4:
  Serial.println("The choice is 4");
  break;
}

}

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

}