LED + Button Test Ardunino

// C++ code
//

int pin_led = 9;
int pin_button = 2;
int posisi_button;
void setup()
{
  pinMode (pin_led, OUTPUT);
  pinMode (pin_button, INPUT);
}

void loop()
{
  posisi_button = digitalRead (pin_button);
  if (posisi_button == LOW)
    {
        digitalWrite(pin_led, HIGH);
    }
  else
    {
        digitalWrite(pin_led, LOW);
    }
  delay(10); // Delay a little bit to improve simulation performance
}