using System;
using System.Text;
using System.Collections;
public class Car : Object
{
// the delegate
public delegate void CarDelegate(Car c);
// for the delegating property
private bool isDirty;
private bool shouldRotate;
// implementing events
public static event EngineHandler Exploded;
public static event EngineHandler AboutToBlow;
public delegate void EngineHandler(string msg);
private int currSpeed;
bool dead;
private int maxSpeed;
private string petName;
// property for the new fields
public bool Rotate
{
get{ return shouldRotate; }
set{ shouldRotate=value; }
}
public bool Dirty
{
get{ return isDirty; }
set{ isDirty = value; }
}
public int CurrSpeed
{
get{ return currSpeed; }
}
public string PetName
{
get{return petName;}
}
public Car()
{
maxSpeed = 100;
dead = false;
}
public Car( string name, int max, int curr ,
bool isDirty, bool shouldRotate )
{
currSpeed = curr;
maxSpeed = max;
petName = name;
dead = false;
this.isDirty = isDirty;
this.shouldRotate = shouldRotate;
}
public void SpeedUp( int delta )
{
if(dead)
{
if(Exploded != null)Exploded("Sorry, this car
is dead...");
}
else
{
currSpeed += delta;
if(10==(currSpeed-maxSpeed))
if(AboutToBlow != null)AboutToBlow
("Be carefull!");
if(currSpeed >= maxSpeed)dead = true;
else Console.WriteLine( "Current Speed is=
{0}", currSpeed);
}
}
public void GetInfo()
{
Console.WriteLine("Car name is {0}, the MaxSpeed is
{1}", petName, maxSpeed);
Console.WriteLine("The current speed is {0}",
currSpeed );
}
}
public class Garage
{
private ArrayList theCars = new ArrayList();
public Garage()
{
theCars.Add(new Car("Fee-Fee", 400, 80, false, true));
theCars.Add(new Car("Fee-Fee", 240, 120,false, true));
}
public void ProcessCars(Car.CarDelegate proc)
{
Console.WriteLine("Calling: {0}", proc.Method.ToString
());
if(proc.Target != null)Console.WriteLine("Nonstatic
method");
else Console.WriteLine("A static method");
foreach(Car car in theCars)
proc(car);
}
}
public class CarApp
{
public CarApp(){}
public static void WashCar(Car c)
{
if(c.Dirty)Console.WriteLine("Cleaning a {0} Car",
c.PetName);
else Console.WriteLine("This car {0} is clean",
c.PetName);
}
public static void RotateTires(Car c)
{
if(c.Rotate)Console.WriteLine("Tires have been
rotating in {0}", c.PetName);
else Console.WriteLine("Don't need to be rotated in
{0}...", c.PetName);
}
}
public class MainClass
{
/*
public static void WashCar(Car c)
{
if(c.Dirty)Console.WriteLine("Cleaning a {0} Car",
c.PetName);
else Console.WriteLine("This car {0} is clean",
c.PetName);
}
public static void RotateTires(Car c)
{
if(c.Rotate)Console.WriteLine("Tires have been
rotating in {0}", c.PetName);
else Console.WriteLine("Don't need to be rotated in
{0}...", c.PetName);
}
*/
public static void Main()
{
Garage g = new Garage();
CarApp App = new CarApp();
// How can I force to work this string.
// Error
Car.CarDelegate wash = new Car.CarDelegate
(App.WashCar);
g.ProcessCars(wash);
/*
g.ProcessCars(new Car.CarDelegate(RotateTires));*/
}
}
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