Question

Consider an object oriented program for a temperature controller. What objects could use to do this? What methods and attributes would these objects have?

Answer 1

temperature controller should be an interface that has two methods one is to increaseTemperature and another is to decrease temperature. any class that needs temperature controle will then implement this interface.

public class TempCntrl implements TempCntrler{
   double temperature;
   public double getTemperature() {
       return temperature;
   }

   public void setTemperature(double temperature) {
       this.temperature = temperature;
   }

   public void increaseTemperature(int increaseBy){
       temperature = temperature + increaseBy;
   }
  
   public void decreaseTemperature(int decreaseBy){
       temperature = temperature - decreaseBy;
   }

   @Override
   public String toString() {
       return "TempCntrl [temperature=" + temperature + "]";
   }
  
  
}

interface TempCntrler{
   public void increaseTemperature(int increaseBy);
   public void decreaseTemperature(int decreaseBy);
}

class AC extends TempCntrl{
     
}

class Oven extends TempCntrl{
     
}