Assume there is a class airconditioner that supports the following behaviors: turning the air conditioner on and off. the following methods provide this behavior: turnon and turnoff. both methods take no arguments and return no value.
assume there is a reference variable myac to an object of this class, which has already been created. using the reference variable, invoke a method to tell the air conditioner object to turn on.

Hi!

I will use JAVA to answer the question.

The class AirConditioner could be:

public class AirConditioner {

  bolean state;

  AirConditioner(){ //constructor

     this.state = false;

   }

public void turnOff{ //turn off method

 this.state = false;

   }

public void turnOn{ //turn on method

 this.state = true;

   }

}

Program to solve the problem:

public static void main(){ //main program

  AirConditioner myAC = new AirConditioner();  //instanciate the AirConditioner object

  myAC.turnOn(); //call the method turnOn for myAC instance.

}