// Declare and initialize variables:
int LED1 = 10;
int LED2 = 11;
int LED3 = 12;
int LED4 = 13;
int Switch1 = 2;
int Switch2 = 3;
int Switch3 = 4;
int Switch4 = 5;


void setup() {
  // put your setup code here, to run once:

// Assign roles to the variables we have declared:
pinMode(LED1, OUTPUT);
pinMode(LED2, OUTPUT);
pinMode(LED3, OUTPUT);
pinMode(LED4, OUTPUT);
pinMode(Switch1, INPUT);
pinMode(Switch2, INPUT);
pinMode(Switch3, INPUT);
pinMode(Switch4, INPUT);

}


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

     if (digitalRead(Switch1) == HIGH) { // check Switch #1
          digitalWrite(LED1, HIGH); // turn LED ON
     }
     else {
     digitalWrite(LED1, LOW); // turn LED off.
     }

     if (digitalRead(Switch2) == HIGH) { // check Switch #2
          digitalWrite(LED2, HIGH); // turn LED ON
     }
     else {
     digitalWrite(LED2, LOW); // turn LED off.
     }

     if (digitalRead(Switch3) == HIGH) { // check Switch #3
          digitalWrite(LED3, HIGH); // turn LED ON
     }
     else {
     digitalWrite(LED3, LOW); // turn LED off.
     }
      if (digitalRead(Switch4) == HIGH) { // check Switch #4
          digitalWrite(LED4, HIGH); // turn LED ON
     }
     else {
     digitalWrite(LED4, LOW); // turn LED off.
     }


}