using System;

public class Program

{

    public delegate void BoilDelegate(int param);

    public class Heater

    {

        private int temperature;

        public BoilDelegate boilDelegate;

        public void BoilWater()

        {

            for(int i=0; i<=100; i++)

            {

                temperature = i;

                if(temperature > 95)

                {

                    boilDelegate?.Invoke(temperature);

                }

            }

        }       

    }

    public class Alarm

    {

        public void MakeAlert(int param)

        {

            Console.WriteLine($"逼逼逼: 水已經{param}度了");

        }

    }

    public class Display

    {

        public static void ShowMsg(int param)

        {

            string s = param == 100 ? "已經滾" : "快滾";

            Console.WriteLine($"LCD顯示: 水{s}了, 現在{param}度了");

        }

    }

    public static void Main()

    {

        Heater ht = new Heater();

        Alarm alarm = new Alarm();

        ht.boilDelegate = new BoilDelegate(alarm.MakeAlert);

        ht.boilDelegate += new BoilDelegate(Display.ShowMsg);

        ht.BoilWater();

    }

}