Bài tập - Quản lý rạp chiều phim C# - Lập trình C#

#Program.cs

using System;
using System.Collections.Generic;

namespace BT2509
{
    delegate void ShowStatus();

    class Program
    {
        static void Main(string[] args)
        {
            //Khai bao mang du lieu
            List<IStatus> statusList = new List<IStatus>();

            //Khoi tao doi tuong du lieu
            for(int i=0;i<3;i++)
            {
                TicketCounter counter = new TicketCounter();
                counter.Input();

                statusList.Add(counter);
            }
            for (int i = 0; i < 2; i++)
            {
                Restaurant res = new Restaurant();
                res.Input();

                statusList.Add(res);
            }
            for (int i = 0; i < 2; i++)
            {
                Parking res = new Parking();
                res.Input();

                statusList.Add(res);
            }
            for (int i = 0; i < 5; i++)
            {
                CinemaRoom res = new CinemaRoom();
                res.Input();

                statusList.Add(res);
            }

            //C1. Goi toan bo onStatus trong statusList
            FollowStatus(statusList);

            //C2. Khai bao doi tuong delegate
            ShowStatus showStatus = null;
            foreach (IStatus status in statusList)
            {
                showStatus += status.OnStatus;
            }
            showStatus();
        }

        static void FollowStatus(List<IStatus> statusList)
        {
            foreach(IStatus status in statusList)
            {
                status.OnStatus();
            }
        }
    }
}

#IStatus.cs

using System;
namespace BT2509
{
    public interface IStatus
    {
        void OnStatus();
    }
}

#PosObject.cs

using System;
namespace BT2509
{
    public class PosObject : IStatus
    {
        public string Status { get; set; }
        public string CurrentTime { get; set; }

        public PosObject()
        {
        }

        public void OnStatus()
        {
            Console.WriteLine("Trang thai: {0}", Status);
        }

        public void Input()
        {
            Console.WriteLine("Nhap trang thai: ");
            Status = Console.ReadLine();

            Console.WriteLine("Thoi diem: ");
            CurrentTime = Console.ReadLine();
        }

        public void Display()
        {
            Console.WriteLine("Trang thai: {0}, thoi diem: {1}", Status, CurrentTime);
        }
    }
}

#Parking.cs

using System;
namespace BT2509
{
    public class Parking : PosObject
    {
        public Parking()
        {
        }
    }
}

#Restaurant.cs

using System;
namespace BT2509
{
    public class Restaurant : PosObject
    {
        public Restaurant()
        {
        }
    }
}

#TicketCounter.cs

using System;
namespace BT2509
{
    public class TicketCounter : PosObject
    {
        public TicketCounter()
        {
        }
    }
}

#CinemaRoom.cs

using System;
namespace BT2509
{
    public class CinemaRoom : IStatus
    {
        public int SeatTotal { get; set; }
        public int UnavaiableSeatTotal { get; set; }
        public string CurrentTime { get; set; }

        public CinemaRoom()
        {
        }

        public void Input()
        {
            Console.WriteLine("Nhap tong so ghe: ");
            SeatTotal = int.Parse(Console.ReadLine());

            Console.WriteLine("Nhap so ghe da ngoi: ");
            UnavaiableSeatTotal = int.Parse(Console.ReadLine());

            Console.WriteLine("Thoi diem: ");
            CurrentTime = Console.ReadLine();
        }

        public void Display()
        {
            Console.WriteLine("So ghe: {0}, so ghe da ngoi: {1}, thoi diem: {2}", SeatTotal, UnavaiableSeatTotal, CurrentTime);
        }

        public void OnStatus()
        {
            Console.WriteLine("Trang thai {0}/{1}", UnavaiableSeatTotal, SeatTotal);
        }
    }
}