Buzzer+Push button+arduino
Try this
int LEDState = 1;
int SwitchPin = 6;
int LEDPIN = 9;

void setup()
{
  pinMode(LEDPIN,OUTPUT);
  pinMode(SwitchPin,INPUT);
  digitalWrite(LEDPIN,LEDState);
}

void loop()
{

  int SwitchState = digitalRead(SwitchPin);

  if(LEDState==1 &amp;&amp; SwitchState==HIGH){
   LEDState = 0; 
  }

  digitalWrite(LEDPIN,LEDState);
    delay(10); 
}