public class Temperature {
   int temp;
   int high;
   int low;

   Temperature(int initialTemp) {
      temp = high = low = initialTemp;
   }

   public int getTemp() {
      return temp;
   }

   public int setTemp(int temp) {
      this.temp = temp;
      if (temp > high)
         high = temp;
      if (temp < low)
         temp = low;
   }

   public int getHigh() {
      return high;
   }

   public int getLow() {
      return low;
   }

   public void reset() {
      high = low = temp;
   }

   public int toCelcius(int f) {
      return (f - 32) * (5.0 / 9.0);
   } 

   public String toString() {
      return ("" + temp + "degrees Fahrenheit");
   }
}




Alternative:
a static method can be called on the class, not requiring an instance...

   public static int toCelcius(int f) {  // doesn't use instance variables
      return (f - 32) * (5.0 / 9.0);
   } 

example use:

   int boilingDegreesC = Temperature.toCelcius(212)