Push Button ON and OFF Relay with Buzzer indication

1
2#define r1 11   // relay signal pin
3#define Buzzer 10  // buzzar  pin
4int relay1 = LOW;
5#define BUTTON_PIN 7  // button pin
6void setup()  {
7  pinMode(r1, OUTPUT);
8  pinMode(Buzzer, OUTPUT);
9  pinMode(BUTTON_PIN,  INPUT);
10}
11void loop() {
12  if (digitalRead(BUTTON_PIN) == HIGH) 
13  {
14    relay1 = ~ relay1;
15    digitalWrite(r1, relay1);
16    digitalWrite(Buzzer,  HIGH);
17    delay(1000);
18    digitalWrite(Buzzer, LOW);
19
20  }
21
22}
23