HotDrinkMaker.cs

public abstract class HotDrinkMaker
{
   void PrepareRecipe()
   {
       this.BoilWater();
       this.Brew();
       this.PourInCup();
       this.AddCondiments();
   }
   
   abstract void Brew();
   
   abstract void AddCondiments();
   
   void BoilWater()
   {
       Console.WriteLine(“Boiling water...”);
   }

   void PourInCup()
   {
       Console.WriteLine(“Pouring in cup...”);
   }
}