델리게이트 이벤트 소스 노가다 2

using System;

class MainApp
{
 delegate void stuff();

 static void Main()
 {
  stuff s = new stuff(sugar);
  stuff c = new stuff(cream);
  stuff m = new stuff(milk);
  stuff cafe = new stuff(coffee);

  Console.WriteLine("비엔나 커피 만들기");
  stuff vienna = s + c + cafe;
  vienna();
  Console.WriteLine();

  stuff cafeaulait = s + m + cafe;
  cafeaulait();
  Console.WriteLine();

  stuff black = cafeaulait - m - s;
  black();
  Console.WriteLine();

 }

 static void sugar()
 {
  Console.Write("sugar ");
 }

 static void cream()
 {
  Console.Write("cream ");
 }

 static void milk()
 {
  Console.Write("milk ");
 }

 static void coffee()
 {
  Console.WriteLine("coffee ");
 }

}
 










using System;

class varista
{
 delegate void stuff();
 
 static void Main()
 {
  stuff c = cream;
  stuff m = milk;
  stuff cafe = coffee;
  stuff s = suger;

  stuff type1 = c + m + cafe;
  type1();
  Console.WriteLine();
  c();
  m();
  cafe();
  Console.WriteLine();

  stuff black = type1 - m - c;
  black();

  Console.WriteLine();

  stuff cafeore = c + s + m;
  cafeore();

 }

 static void cream()
 {
  Console.Write("cream1 ");
 }

 static void milk()
 {
  Console.Write("milk2 ");
 }

 static void coffee()
 {
  Console.Write("coffee3 ");
 }

 static void suger()
 {
  Console.Write("suger4 ");
 }

}




using System;
class client
{
 private int ID;

 public delegate void clientService(object sender , EventArgs args);
 public event clientService Service;

 public client(int ID)//생성자  client의 ID를 설정합니다
 {
  this.ID = ID;
 }

 public int clientID // client ID  프로퍼티  ID 를 읽어옵니다
 {
  get { return this.ID; }
 }
 public void fireEvent()
 {
  if(Service!=null)
  {
   EventArgs args = new EventArgs();
   Service(this , args);
  }
 }
}

class MainApp
{
 public static void OnEvent(object sender, EventArgs args)
 {
  client c = (client)sender;
  Console.WriteLine("{0}", c.clientID);
 }

 public static void Main()
 {
  client clientA = new client(1);
  clientA.Service += new client.clientService(OnEvent);

 }
}