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| using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;
namespace ConsoleApplication1
{
class MovieTheater
{
private Hashtable movies = new Hashtable();
public void GiveMeAMovie(string name)
{
Movie m;
if (movies.ContainsKey(name))
{
m = (Movie) movies[name];
}
else
{
m = new ConcreteMovie(name);
movies.Add(name, m);
}
m.ShowTheMovie();
}
public void HowManyMoviesHaveWeOrdered()
{
Console.WriteLine(movies.Count);
}
}
abstract class Movie
{
protected string name;
public Movie(string n)
{
this.name = n;
}
public abstract void ShowTheMovie();
}
class ConcreteMovie : Movie
{
public ConcreteMovie(string n)
: base(n)
{
}
public override void ShowTheMovie()
{
Console.WriteLine(name);
}
}
class Client
{
public static void Main()
{
MovieTheater mth = new MovieTheater();
mth.GiveMeAMovie("Hell Boy");
mth.GiveMeAMovie("Wanted");
mth.GiveMeAMovie("Wall-E");
mth.GiveMeAMovie("Hell Boy");
mth.GiveMeAMovie("Hell Boy");
mth.GiveMeAMovie("Wanted");
mth.GiveMeAMovie("Wall-E");
mth.GiveMeAMovie("Hell Boy");
mth.HowManyMoviesHaveWeOrdered();
Console.Read();
}
}
}
|
