blinking led arduino

void setup()
{
  pinMode(7, INPUT);
  pinMode(6, OUTPUT);
}

void loop()
{
  while (digitalRead(7) == 1) {
    digitalWrite(6, HIGH);
    delay(1000); // Wait for 1000 millisecond(s)
    digitalWrite(6, LOW);
    delay(1000); // Wait for 1000 millisecond(s)
  }
}