Link Video Bai Hoc

Bài tập - Bài tập - Viết chương trình quản lý tiêm chủng Vacxin COVID-19 - Lập trình C Sharp nâng cao.

#Utility.cs

using System;
namespace BT2466
{
    public class Utility
    {
        public static DateTime ConvertStringToDateTime(string str)
        {
            DateTime myDate = DateTime.ParseExact(str, "yyyy-MM-dd",
                                       System.Globalization.CultureInfo.InvariantCulture);
            return myDate;
        }

        public static string ConvertDateTimeToString(DateTime myDate)
        {
            return myDate.ToString("yyyy-MM-dd");
        }

        public static int ReadInt()
        {
            int value;
            while (true)
            {
                try
                {
                    value = int.Parse(Console.ReadLine());
                    return value;
                }
                catch (Exception e)
                {
                    Console.WriteLine("Nhap lai!!!");
                }
            }
        }
    }
}

#Record.cs

using System;
namespace BT2466
{
    public class Record
    {
        public string Fullname { get; set; }
        public string Cmtnd { get; set; }
        public string PhoneNumber { get; set; }
        public string Address { get; set; }
        public DateTime VacxinDate { get; set; }
        public string VacxinAddress { get; set; }
        public string VacxinNam { get; set; }

        public Record()
        {
        }

        public Record(string fullname, string cmtnd, string phoneNumber, string address, DateTime vacxinDate, string vacxinAddress, string vacxinNam)
        {
            Fullname = fullname;
            Cmtnd = cmtnd;
            PhoneNumber = phoneNumber;
            Address = address;
            VacxinDate = vacxinDate;
            VacxinAddress = vacxinAddress;
            VacxinNam = vacxinNam;
        }

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

            Console.WriteLine("Nhap CMTND: ");
            Cmtnd = Console.ReadLine();

            Console.WriteLine("Nhap SDT: ");
            PhoneNumber = Console.ReadLine();

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

            Console.WriteLine("Nhap ngay tiem (yyyy-MM-dd): ");
            string VacxinDateStr = Console.ReadLine();
            VacxinDate = Utility.ConvertStringToDateTime(VacxinDateStr);

            Console.WriteLine("Nhap dia chi tiem: ");
            VacxinAddress = Console.ReadLine();

            Console.WriteLine("Nhap ten vacxin: ");
            VacxinNam = Console.ReadLine();
        }

        public void Display()
        {
            Console.WriteLine("Ten: {0}, cmntd: {1}, sdt: {2}, dia chi: {3}, " +
                "ngay tiem: {4}, dia chi tiem: {5}, ten vacxin: {6}", Fullname,
                Cmtnd, PhoneNumber, Address, Utility.ConvertDateTimeToString(VacxinDate),
                VacxinAddress, VacxinNam);
        }
    }
}

#Program.cs

using System;
using System.Collections.Generic;

namespace BT2466
{
    class Program
    {
        static List<Record> recordList;

        static void Main(string[] args)
        {
            recordList = new List<Record>();
            int choose;

            do
            {
                ShowMenu();
                choose = Utility.ReadInt();

                switch(choose)
                {
                    case 1:
                        Input();
                        break;
                    case 2:
                        Display();
                        break;
                    case 3:
                        FindByCmntd();
                        break;
                    case 4:
                        SaveFile();
                        break;
                    case 5:
                        ReadFile();
                        break;
                    case 6:
                        Console.WriteLine("Thoat!!!");
                        break;
                    default:
                        Console.WriteLine("Nhap sai!!!");
                        break;
                }
            } while (choose != 6);
        }

        static void ReadFile()
        {
            //Doc noi dung file -> json
            string json = System.IO.File.ReadAllText(@"db.json");

            //Chuyen json string sang List
            recordList = Newtonsoft.Json.JsonConvert.DeserializeObject<List<Record>>(json);

            Console.WriteLine("Doc thanh cong!!!");
        }

        static void SaveFile()
        {
            //Chuyen List -> json string
            string json = Newtonsoft.Json.JsonConvert.SerializeObject(recordList);

            //Save File
            System.IO.File.WriteAllText(@"db.json", json);

            Console.WriteLine("Luu thanh cong!!!");
        }

        /**
         * TH: con dan -> tiem 2 mui (khoang cach 2 mui tiem > 14)
         */
        static void FindByCmntd()
        {
            Console.WriteLine("Nhap CMTND can kiem tra: ");
            string cmtnd = Console.ReadLine();
            DateTime lastDateTime = DateTime.Now;
            int count = 0;

            foreach(Record record in recordList)
            {
                if(record.Cmtnd == cmtnd)
                {
                    if(count == 0)
                    {
                        lastDateTime = record.VacxinDate;
                    } else
                    {
                        if(record.VacxinDate > lastDateTime)
                        {
                            lastDateTime = record.VacxinDate;
                        }
                    }
                    count++;
                }
            }

            DateTime dateTime = DateTime.Now.AddDays(-14);
            if(count >= 2 && lastDateTime <= dateTime)
            {
                Console.WriteLine("Cmtnd: {0}, so mui tiem: {1}, The Xanh", cmtnd, count);
            } else if(count == 2 && lastDateTime > dateTime)
            {
                Console.WriteLine("Cmtnd: {0}, so mui tiem: {1}, The Vang", cmtnd, count);
            } else if(count == 1 && lastDateTime <= dateTime)
            {
                Console.WriteLine("Cmtnd: {0}, so mui tiem: {1}, The Vang", cmtnd, count);
            } else if(count == 1 && lastDateTime > dateTime)
            {
                Console.WriteLine("Cmtnd: {0}, so mui tiem: {1}, Normal", cmtnd, count);
            } else
            {
                Console.WriteLine("Cmtnd: {0}, Chua dc tiem chung", cmtnd);
            }
        }

        static void Display()
        {
            Console.WriteLine("=== Hien thi danh sach ban ghi");
            foreach(Record record in recordList)
            {
                record.Display();
            }
        }

        static void Input()
        {
            Console.WriteLine("Nhap so ban ghi can them N = ");
            int N = Utility.ReadInt();

            for(int i=0;i<N;i++)
            {
                Record record = new Record();
                record.Input();

                recordList.Add(record);
            }
        }

        static void ShowMenu()
        {
            Console.WriteLine("1. Nhap n ban ghi");
            Console.WriteLine("2. Hien thi");
            Console.WriteLine("3. Tim theo cmtnd");
            Console.WriteLine("4. Save db.json");
            Console.WriteLine("5. Read db.json");
            Console.WriteLine("6. Thoat");
            Console.WriteLine("Chon: ");
        }
    }
}