Link Video Bài Giảng

#Student02.cs

using System;
namespace Lesson06
{
    public partial class Student
    {
        public string Address { get; set; }

        public Student(string fullname, string rollno, string address)
        {
            Fullname = fullname;
            RollNo = rollno;
            Address = address;
        }

        public void Display()
        {
            Console.WriteLine("Ten: {0}, MSV: {1}, Dia Chi: {2}", Fullname, RollNo, Address);
        }
    }
}

#Student01.cs

using System;
namespace Lesson06
{
    public partial class Student
    {
        public string Fullname { get; set; }
        public string RollNo { get; set; }

        public Student()
        {
        }

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

            Console.WriteLine("Nhap rollno: ");
            RollNo = Console.ReadLine();

            Console.WriteLine("Nhap dia chi: ");
            Address = Console.ReadLine();
        }
    }
}

#Program.cs

using System;
using System.Collections.Generic;

namespace Lesson06
{
    public delegate void OnRunning();
    /**
     * Cong, Tru, Nhan, Chia, .v.v
     */
    public delegate double Calculator(double x, double y);

    class Program
    {
        static event Calculator HieuEvent;

        static void Main(string[] args)
        {
            //Test01();
            //Test02();
            //Test03();
            Test04();
        }

        static void Test04()
        {
            Student student = new Student();
            student.Input();
            Console.WriteLine("Ten: " + student.Fullname);
            Console.WriteLine("DC: " + student.Address);
        }

        static void Test03()
        {
            List<int> list1 = new List<int>();
            list1.Add(1);
            list1.Add(5);
            list1.Add(2);

            int k = list1[0];
            //string v2 = list[1]; Error
            Console.WriteLine("k = " + k);

            List<string> list2 = new List<string>();
            list2.Add("Vi du 1");
            list2.Add("Vi du 7");
            list2.Add("Vi du 2");

            string v = list2[1];
            //int v3 = list[0];Error
            Console.WriteLine("v = " + v);

            //Cau hoi 1: List<int> & List<string> -> bao nhieu class object -> chi la 1 class object chung thoi
            //Khac nhau kieu du lieu truyen vao int, string, double, char, float, other class.

            //Generic -> ??? -> Truyen kieu du lieu int, string, ... => Luc su dung khoi tao object tu class object.

        }

        static void Test02()
        {
            //Stack -> LIFO (Last In First Out)
            //Khai bao mang -> Tuong tuong cach quan ly -> trong sach
            Stack<string> list = new Stack<string>();
            //Them phan tu vao
            Console.WriteLine("So phan tu trong stack: " + list.Count);
            list.Push("Vi du 1");
            Console.WriteLine("So phan tu trong stack: " + list.Count);
            list.Push("Vi du 2");
            Console.WriteLine("So phan tu trong stack: " + list.Count);
            list.Push("Vi du 3");
            Console.WriteLine("So phan tu trong stack: " + list.Count);

            //Lay phan tu ra
            string v = list.Pop();
            Console.WriteLine("v: " + v);
            Console.WriteLine("So phan tu trong stack: " + list.Count);

            v = list.Pop();
            Console.WriteLine("v: " + v);
            Console.WriteLine("So phan tu trong stack: " + list.Count);

            //Chu y: Stack & Queue -> Push & Pop
            //Queue -> FIFO (First In First Out)
            //Khai bao mang -> Tuong tuong cach quan ly -> xep hang mua ve xem phim
            Queue<string> queue = new Queue<string>();
            //Them phan tu vao
            Console.WriteLine("So phan tu trong stack: " + queue.Count);
            queue.Enqueue("Vi du 1");
            Console.WriteLine("So phan tu trong stack: " + queue.Count);
            queue.Enqueue("Vi du 2");
            Console.WriteLine("So phan tu trong stack: " + queue.Count);
            queue.Enqueue("Vi du 3");
            Console.WriteLine("So phan tu trong stack: " + queue.Count);

            //Lay phan tu ra
            v = queue.Dequeue();
            Console.WriteLine("v: " + v);
            Console.WriteLine("So phan tu trong stack: " + queue.Count);

            v = queue.Dequeue();
            Console.WriteLine("v: " + v);
            Console.WriteLine("So phan tu trong stack: " + queue.Count);
        }

        static void Test01()
        {
            People p = new People();
            p.onRunning();

            //Anonymous -> Code chi su dung 1 lan -> ko tai su dung
            OnRunning running = delegate () {
                Console.WriteLine("Test delegate ...");
            };
            running();

            double tong = Cong(1.2F, 6.9F);
            Console.WriteLine("Tong: " + tong);

            //Anonymous -> Code chi su dung 1 lan -> ko tai su dung
            Calculator calTru = delegate (double x, double y) {
                return x - y;
            };
            double hieu = calTru(5.6F, 2.6F);
            Console.WriteLine("Hieu: " + hieu);

            //Diem manh delegate -> ket hop nhieu function (tuong + anonymous) -> chay dong thoi dc
            Calculator cal = Hieu;
            //Anonymous -> T1
            cal += delegate (double x, double y) {
                Console.WriteLine("Tich: " + (x * y));
                return x * y;
            };
            //Anonymous -> T2
            cal += delegate (double x, double y) {
                Console.WriteLine("Thuong: " + (x / y));
                return x / y;
            };

            cal(6, 2);
            //Hieu(6,2), T1(6,2), T2(6,2)
            //TH -> void

            //Test Event
            HieuEvent = Hieu;
            //HieuEvent += Cong;
            //HieuEvent = new Calculator(Hieu);
            HieuEvent(6.2F, 1.2F);
        }

        static double Cong(double x, double y)
        {
            Console.WriteLine("Tong: " + (x + y));
            return x + y;
        }

        static double Hieu(double x, double y)
        {
            Console.WriteLine("Hieu: " + (x - y));
            return x - y;
        }
    }
}

#People.cs

using System;
namespace Lesson06
{
    public class People : IRunning
    {
        public People()
        {
        }

        public void onRunning()
        {
            Console.WriteLine("People is running...");
        }
    }
}

#IRunning.cs

using System;
namespace Lesson06
{
    public interface IRunning
    {
        void onRunning();
    }
}

#IAction.cs

using System;
namespace Lesson06
{
    public interface IAction
    {
        void onRunning();
        void onSleeping();
    }
}