[Examination] C# - Chương trình quản lý đội thi TechWiz toàn cầu Apptech Ấn Độ - C#

#Program.cs

using System;
using System.Collections.Generic;

namespace BT2312
{
    delegate void ShowInfor();

    class Program
    {
        static void Main(string[] args)
        {
            //Khai bao mang groupList
            List<Group> groupList = new List<Group>();

            //Sinh ngau nhien N phan tu Group
            Random random = new Random();
            int n = random.Next(2) + 2;
            Console.WriteLine("So nhom can them: {0}", n);

            //Nhap du lieu cho mang N phan tu tren
            for(int i=0;i<n;i++)
            {
                Group group = new Group();
                group.Input();

                groupList.Add(group);
            }

            //Khai bao doi tuong delegate
            ShowInfor showInfor = null;

            //Nhom ham Display cua tat ca doi tuong groupList -> vao delegate
            foreach (Group g in groupList)
            {
                showInfor += g.Display;
            }

            //Thuc thi goi delegate
            showInfor();
        }
    }
}

#Group.cs

using System;
namespace BT2312
{
    public class Group
    {
        public string Name { get; set; }
        public string Center { get; set; }
        public Project MyProject { get; set; }

        public Group()
        {
            MyProject = new Project();
        }

        public void Input()
        {
            Console.WriteLine("================================");
            Console.WriteLine("Nhap ten nhom: ");
            Name = Console.ReadLine();

            Console.WriteLine("Nhap trung tam: ");
            Center = Console.ReadLine();

            MyProject.Input();
        }

        public void Display()
        {
            Console.WriteLine("Ten nhom: {0}, trung tam: {1}", Name, Center);
            MyProject.Display();
        }
    }
}

#Project.cs

using System;
namespace BT2312
{
    public class Project
    {
        public string Name { get; set; }
        public string ProjectType { get; set; }

        public Project()
        {
        }

        public void Input()
        {
            Console.WriteLine("Nhap ten: ");
            Name = Console.ReadLine();

            Console.WriteLine("Chon loai de tai: ");
            string[] options = { "Development & Design Website",
                "Website Developer", "Application Developer" };

            for(int i=1;i<=options.Length;i++)
            {
                Console.WriteLine("{0}. {1}", i, options[i-1]);
            }
            Console.WriteLine("Chon: ");
            int choose = int.Parse(Console.ReadLine());
            if(choose < 1 || choose > options.Length)
            {
                choose = options.Length;
            }
            ProjectType = options[choose - 1];
        }

        public void Display()
        {
            Console.WriteLine("Ten: {0}, loai de tai: {1}", Name, ProjectType);
        }
    }
}