By GokiSoft.com| 10:04 09/10/2021|
C Sharp

Bài tập ôn luyện OOP + Interface trong C# - Lập Trình C# - Lập Trình C Sharp



Tags:



Phản hồi từ học viên

5

(Dựa trên đánh giá ngày hôm nay)

Nguyễn Hùng Anh [community,C2009G]
Nguyễn Hùng Anh

2021-10-30 03:17:15


#Employee.cs


using System;
using System.Collections.Generic;
using System.Text;

namespace Bt1506
{
    abstract class Employee
    {
        private int _id;
        public int ID
        {
            get
            {
                return _id;
            }
        }
        private string _name;
        public string Name
        {
            get
            {
                return _name;
            }
            set
            {
                if(value.Length < 3)
                {
                    throw new Exception();
                }
                _name = value;
            }
        }

        protected Employee(int id)
        {
            _id = id;
            Name = "No Name";
        }

        protected Employee(int id, string name) : this(id)
        {
            Name = name;
        }

        public abstract void ShowInfo();
    }
}


#HiredProgrammer.cs


using System;
using System.Collections.Generic;
using System.Text;

namespace Bt1506
{
    class HiredProgrammer
    {
        private List<Programmer> HPGM;

        public HiredProgrammer(int capacity)
        {
            HPGM = new List<Programmer>(capacity);
        }

        public void AddNew(Programmer prog)
        {
            try
            {
                HPGM.Add(prog);
            } catch (IndexOutOfRangeException)
            {
                throw new Exception("Out of capacity");
            }
        }

        public int ShowFilterInfo(int underage)
        {
            int count = 0;
            foreach(Programmer prog in HPGM)
            {
                if(prog.Age <= underage)
                {
                    count++;
                }
            }

            return count;
        }
    }
}


#IPerson.cs


using System;
using System.Collections.Generic;
using System.Text;

namespace Bt1506
{
    interface IPerson
    {
        string Skills { get; set; }
        DateTime DateOfBirth { get; }
        int Age { get; }
    }
}


#Program.cs


using System;
using System.Collections.Generic;

namespace Bt1506
{
    class Program
    {
        static HiredProgrammer myemployee;
        static void Main(string[] args)
        {
            myemployee = new HiredProgrammer(3);
            for (int i = 0; i < 3; i++)
            {
                Console.WriteLine("Nhap ten:");
                string name = Console.ReadLine();

                Console.WriteLine("Nhap ky nang:");
                string skills = Console.ReadLine();

                Console.WriteLine("Nhap DOB(yyyy-MM-dd):");
                string dobStr = Console.ReadLine();
                DateTime dob = ConvertStringToDateTime(dobStr);

                Programmer prob = new Programmer(skills, dob, i+1, name);
                myemployee.AddNew(prob);
                prob.ShowInfo();
            }
            Console.WriteLine("Nhap do tuoi can kiem tra:");
            int checkAge = int.Parse(Console.ReadLine());
            int checkCount = myemployee.ShowFilterInfo(checkAge);
            Console.WriteLine("So nhan vien duoi {0} tuoi la {1}", checkAge, checkCount);
            
        }

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


#Programmer.cs


using System;
using System.Collections.Generic;
using System.Text;

namespace Bt1506
{
    class Programmer : Employee, IPerson
    {
        private string _skills;
        public string Skills {
            get
            {
                return _skills;
            }
            set
            {
                if(value.Length == 0)
                {
                    throw new Exception();
                }
                _skills = value;
            }
        }

        private DateTime _DOB;
        public DateTime DateOfBirth { 
            get
            {
                return _DOB;
            }
            set
            {
                _DOB = value;
            }
        }

        private int _age;
        public int Age { 
            get
            {
                int year = int.Parse(DateOfBirth.ToString("yyyy"));
                int currentYear = int.Parse(DateTime.Now.ToString("yyyy"));
                _age = currentYear - year;
                return _age;
            }
        }

        public Programmer(int id, string name):base(id,name)
        {
            _skills = string.Empty;
            DateOfBirth = DateTime.Now;
        }

        public Programmer(string skills, DateTime dob, int id, string name) : base(id, name)
        {
            Skills = skills;
            DateOfBirth = dob;
        }

        public override void ShowInfo()
        {
            Console.WriteLine("Id: {0} | Name: {1} | Skills: {2} | DOB: {3} | Age: {4}",
                ID, Name, Skills, DateOfBirth, Age);
        }
    }
}


Hieu Ngo [community,C2009G]
Hieu Ngo

2021-10-30 03:09:26


#Utility.cs


using System;
using System.Collections.Generic;
using System.Globalization;
using System.Text;

namespace Programmer
{
    class Utility
    {
        public static int ReadInt()
        {
            int value;
            while(true)
            {
                try
                {
                    value = int.Parse(Console.ReadLine());
                    return value;
                }catch
                {
                    Console.WriteLine("Error");
                }
            }
        }

        public static DateTime StringCovertToDate(string dateStr)
        {
            DateTime myDate = DateTime.ParseExact(dateStr, "dd/MM/yyyy", CultureInfo.InvariantCulture);
            return myDate;
        }

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


#Employee.cs


using System;
using System.Collections.Generic;
using System.Text;

namespace Programmer
{
    abstract class Employee
    {
        private int _id;
        public int ID
        {
            get
            {
                return _id;
            }
        }

        public string Name
        {
            get
            {
                return _name;
            }
            set
            {
                if (value.Length < 3)
                {
                    throw new Exception();
                }
                _name = value;
            }
        }
        private string _name;

        public Employee(int id)
        {
            _id = id;
            Name = "No Name";
        }

        public Employee(int id, string name) : this(id)
        {
            Name = name;
        }
        public void Input()
        {
            Console.WriteLine("Id :");
            _id = int.Parse(Console.ReadLine());
            Console.WriteLine("Name :");
            Name = Console.ReadLine();
        }
        public abstract void ShowInfo();
    }
}


#HiredProgrammers.cs


using System;
using System.Collections.Generic;
using System.Text;

namespace Programmer
{
    class HiredProgrammers
    {
        private List<Programmer> HPGM;

        public HiredProgrammers(int capacity)
        {
            HPGM = new List<Programmer>(capacity);
        }

        public void AddNew(Programmer prog)
        {
            try
            {
                HPGM.Add(prog);
            } catch(IndexOutOfRangeException)
            {
                throw new Exception("So phan tu lon hon suc chua cua mang");
            }
        }

        public int ShowFillterInfo(int underage)
        {
            int num = 0;
            foreach(Programmer program in HPGM)
            {
                if(program.Age <= underage)
                {
                    num++;
                }
            }
            return num;
        }
        public void Show(int underage)
        {
            int num = 0;
            foreach (Programmer program in HPGM)
            {
                if (program.Age <= underage)
                {
                    program.ShowInfo();
                }
            }
            
        }
    }
}


#IPerson.cs


using System;
using System.Collections.Generic;
using System.Text;

namespace Programmer
{
    interface IPerson
    {
        public string Skills { get; set; }
        public DateTime DateOfBirth { get; }
        public int Age { get; }
    }
}


#Program.cs


using System;

namespace Programmer
{
    class Program
    {
        static HiredProgrammers myEmployee = new HiredProgrammers(3);
        static Programmer programmer;
        static void Main(string[] args)
        {
            for(int i = 0; i<3; i++)
            {
                Console.WriteLine("Name :");
                String name = Console.ReadLine();
                int id = i + 1;
                programmer = new Programmer(id, name);
                Console.WriteLine("Skills :");
                programmer.Skills = Console.ReadLine();
                Console.WriteLine("DOB :");
                programmer.DateOfBirth = Utility.StringCovertToDate(Console.ReadLine());
                myEmployee.AddNew(programmer);
            }

            Console.WriteLine();
            Console.WriteLine("underage:");
            int underage = Utility.ReadInt();
            int t = myEmployee.ShowFillterInfo(underage);
            Console.WriteLine("under age = " + t);
            myEmployee.Show(underage);
        }
    }
}


#Programmer.cs


using System;
using System.Collections.Generic;
using System.Text;

namespace Programmer
{
    class Programmer : Employee, IPerson
    {
        private string _skills;
        public string Skills { 
            get
            {
                return _skills;
            }
            set
            {
                if(value.Length ==0)
                {
                    throw new Exception();
                }
                _skills = value;
            }
        }
               
        private DateTime _DOB;
        public DateTime DateOfBirth {
            get
            {
                return _DOB;
            }
            set
            {
                _DOB = value;
            }
        }

        private int _age;
        public int Age { 
            get
            {
                int year = int.Parse(DateOfBirth.ToString("yyyy"));
                int currentYear = int.Parse(DateTime.Now.ToString("yyyy"));
                _age = currentYear - year;
                return _age;
            }
        }

        public Programmer(int id, string name) : base (id, name)
        {
            _skills = string.Empty;
            _DOB = DateTime.Now;
        }
        public Programmer(string skills, DateTime dob,int id, string name) : base(id, name)
        {
            Skills = skills;
            DateOfBirth = dob;
        }
        public override void ShowInfo()
        {
            Console.WriteLine("Id: {0} | Name: {1} | Skills: {2} | DOB: {3} | Age: {4}",
                ID, Name, Skills, DateOfBirth, Age);
        }
    }
}


Nguyễn Việt Hoàng [community,AAHN-C2009G]
Nguyễn Việt Hoàng

2021-10-14 15:37:35


#Program.cs


using Ss11.B1;
using System;

namespace Ss11
{
    class Program
    {
        static void Main(string[] args)
        {
            HiredProgramers myemployee = new HiredProgramers();
            myemployee.AddNew();
            myemployee.AddNew();
            myemployee.AddNew();
            myemployee.ShowFilterInfo(8);


        }
    }
}


Nguyễn Việt Hoàng [community,AAHN-C2009G]
Nguyễn Việt Hoàng

2021-10-14 15:27:09


#Employee.cs


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ss11.B1
{
    abstract class Employee
    {
        private int _id;
        public int Id
        {
            get
            {
                return this._id;
            }
            set
            {
                this._id = value;
            }
        }
        private string _name;
        public string Name
        {
            get
            {
                return this._name;
            }
            set
            {
                while(value.Length <= 3)
                {
                    Console.WriteLine("Lenght Name must be > 3 characters !");
                    Console.WriteLine("Enter Name");
                    value = Console.ReadLine();
                }
                this._name = value;
            }
        }
        public Employee()
        {
            this.Id = 0;
            this.Name = "No Name";
        }
        public Employee(int id, string name)
        {
            this.Id = id;
            this.Name = name;
        }
         public void Input()
         {
             Console.WriteLine("Id :");
             Id = int.Parse(Console.ReadLine());
             Console.WriteLine("Name :");
             Name = Console.ReadLine();
         }
        public abstract void ShowInfo();

       
    }
}


#HiredProgramers.cs


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ss11.B1
{
    class HiredProgramers
    {
        public List<Programer> HPGM { get; set; }
        public HiredProgramers()
        {
            HPGM = new List<Programer>();
        }
        public HiredProgramers(List<Programer> hpgm)
        {
            this.HPGM = hpgm;
        }
        public void AddNew()
        {
            Programer p = new Programer();
            p.Input();
            HPGM.Add(p);
        }
        public int ShowFilterInfo(int underage)
        {
            int count = 0;
            foreach(Programer p in HPGM)
            {
                if(p.Ages <= underage)
                {
                    p.ShowInfo();
                    count++;
                }
            }
            if(count == 0)
            {
                Console.WriteLine("No Find Age");
            }
            return count;
        }
    }
}


#IPerson.cs


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ss11.B1
{
    interface IPerson
    {
        public string Skills();
        public DateTime DateOfBirth();
        public int Age();
    }
}


#Programer.cs


using Ss11.Ultitis;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ss11.B1
{
    class Programer : Employee , IPerson
    {
        private string _skill;
        public string Skill
        {
            get
            {
                return this._skill;
            }
            set
            {
                /*while(value.Length <= 0)
                {
                    Console.WriteLine("Skill must be lenght > 0 !");
                    Console.WriteLine("Enter Skill :");
                    value = Console.ReadLine();
                }*/
                this._skill = value;
            }
        }
        private DateTime _dob;
        public DateTime DOB
        {
            get
            {
                return this._dob;
            }
            set
            {
                this._dob = value;
            }
        }
        private int _age;
        public int Ages
        {
            get
            {
                return this._age;
            }
            set
            {
                this._age = value;
            }
        }
        public Programer()
        {
            base.Id = 0;
            base.Name = "No Name";
            this.Skill = "";
            this.DOB = DateTime.Now;
            
        }
        public Programer(int id, string name , string skill, DateTime dob, int age) : base (id, name)
        {
            this.Skill = skill;
            this.DOB = dob;
            this.Ages = age;
        }

        public override void ShowInfo()
        {
            Console.WriteLine("Id :{0}, Name :{1}, Skill :{2}, DOB :{3}, Age :{4}",base.Id, base.Name,Skills(), DateOfBirth(), Age());

        }
        public string Skills()
        {
            Console.WriteLine("Enter Skill :");
            string skills = Console.ReadLine();
            if(skills.Length <= 0)
            {
                Console.WriteLine("Skill lenght must be > 0 !");
                Console.WriteLine("Enter Skill Again :");
                skills = Console.ReadLine();
            }
            return skills;
        }

        public DateTime DateOfBirth()
        {
            Console.WriteLine("Enter Date Of Birth :");
            DateTime dob = Ultility.ConvertStringToDateTime(Console.ReadLine());
            return dob;
        }

        public int Age()
        {

            Console.WriteLine("Age :");
            int age = DateTime.Now.Year - DateOfBirth().Year;
            return age;
        }
    }
}


hainguyen [T2008A]
hainguyen

2021-05-26 08:28:37


#Employee.cs


using System;
using System.Collections.Generic;
using System.Text;

namespace Lesson05
{
    abstract class Employee
    {
        private int _id;
        private string _name;
        public int id
        {
            get
            {
                return _id;
            }
        }

        public string name
        {
            get
            {
                return _name;
            }
            set
            {
                checkName(value);
            }
        }

        public Employee() { }

        public Employee(int id)
        {
            this._id = id;
            this._name = "NO name";
        }

        public Employee(int id, string name)
        {
            this._id = id;
            this._name = name;
        }

        private void checkName(string name)
        {
            bool isCheck = false;
            while (!isCheck)
            {
                if(name.Length < 3)
                {
                    Console.WriteLine("Name.Length > 3");
                } else
                {
                    _name = name;
                    isCheck = true;
                }
            }
        }

        public abstract void showInfor();
    }
}


#IPerson.cs


using System;
using System.Collections.Generic;
using System.Text;

namespace Lesson05
{
    class IPerson
    {
        public string Skills { get; set; }
        public DateTime DateOfBirth { get; set; }
        public int Age { get; set; }

        public IPerson() { }

        public IPerson(string Skills, DateTime DateOfBirth, int Age)
        {
            this.Skills = Skills;
            this.DateOfBirth = DateOfBirth;
            this.Age = Age;
        }
    }
}


#Programmer.cs


using System;
using System.Collections.Generic;
using System.Text;

namespace Lesson05
{
    class Programmer : Employee, IPerson
    {
        private string _Skill { get; set; }
        private DateTime _DOB { get; set; }
        private int Age { get; set; }
        public Programmer(int id, string name) : base (id, name)
        {
            this._Skill = string.Empty;
            this._DOB = DateTime.Now;
        }

        public Programmer(int id, string name, string skill, DateTime dob) : base (id, name)
        {
            this._Skill = skill;
            this._DOB = dob;
        }

        public string Skill
        {
            get
            {
                return _Skill;
            }
            set
            {
                if(value.Length < 0)
                {
                    Console.WriteLine("lon hon 0");
                }
                _Skill = value;
            }
        }

        public DateTime DateOfBirth
        {
            get
            {
                return _DOB;
            }
            set
            {
                _DOB = value;
            }
        }

        public int age
        {
            get
            {
                Age = DateTime.Now.Year - _DOB.Year;
                return Age;
            }
        }

        public override void showInfor()
        {
            Console.WriteLine("id: " + id + "| Skill: " + _Skill + "| DOB: " + _DOB + "| Age: " + age);
        }
    }
}


Do Trung Duc [T2008A]
Do Trung Duc

2021-05-25 04:04:13



using System;
using System.Collections.Generic;
using System.Text;

namespace Lesson5.OntapInterface
{
    public interface IPerson
    {
       public string Skills { get; set; }
         public DateTime DateOfBirth { get; }
        public int Age { get; }
    };
}


Do Trung Duc [T2008A]
Do Trung Duc

2021-05-25 04:04:00



using System;
using System.Collections.Generic;
using System.Text;

namespace Lesson5.OntapInterface
{
     abstract class Employee
    {
        private int _id;
        private string _name;

        public int id
        {
            get
            {
                return _id;
            }
        }
        public string name
        {
            get
            {
                return _name;
            }
            set
            {
                if (value.Length < 3)
                {
                    throw new Exception("Khong Nhap chuoi  it hon3 ky tu");
                }
                else
                {
                    _name = value;
                }
            }
        }


      
        public Employee(int id)
        {
            this._id = id;
            this._name = "No Name";
        }

        public Employee(int id, string name)
        {
            this._id = id;
            this._name = name;
        }

        public abstract void ShowInfo();
    }
}


Do Trung Duc [T2008A]
Do Trung Duc

2021-05-25 04:03:47



using System;
using System.Collections.Generic;
using System.Text;

namespace Lesson5.OntapInterface
{
    class Programmer : Employee, IPerson
    {
        private string _skills;
        private DateTime _DOB;
        private int _age;

        public Programmer(int id, string name) : base(id,name)
        {
            this._skills = string.Empty;
            this._DOB = DateTime.Now;
        }

        public Programmer(int id, string name, string skills, DateTime dob) : base(id, name)

        {
            this._skills = skills;
            this._DOB = dob;
        }

        public string Skills
        {
            get
            {
                return _skills;
            }
            set
            {
                if(value.Length < 0)
                {
                    throw new Exception("SO ky tu nhap vao khong nho hon 0");
                }
                else
                {
                    _skills = value;
                }
            }
        }


        public DateTime DateOfBirth
        {
            get
            {
                return _DOB;
            }
            set
            {
                _DOB = value;
            }
        }

      

        public int Age
        {
            get
            {
                _age = DateTime.Now.Year - DateOfBirth.Year;
                return _age;
            }
        }

        public override void ShowInfo()
        {
            Console.WriteLine("ID: {0}, Name: {1}, Skill: {2}, DOB: {3}, Age: {4}", id, name, Skills, DateOfBirth, Age);
        }
    }
}


Do Trung Duc [T2008A]
Do Trung Duc

2021-05-25 04:03:33



using System;
using System.Collections.Generic;
using System.Text;

namespace Lesson5.OntapInterface
{
    class HiredProgammers
    {
        List<Programmer> HPGM;

        public HiredProgammers(int capacity)
        {
            HPGM = new List<Programmer>(capacity);
        }

        public void AddNew(Programmer prog)
        {
            try {
                HPGM.Add(prog);
            } catch (IndexOutOfRangeException)
            {
                throw new Exception("So phan tu lon hon suc chua cua mang");
            }
        }

        public int ShowFillterInfo(int underage)
        {
            int num = 0;
            foreach(Programmer prog in HPGM)
            {
                if (prog.Age < underage)
                {
                    num++;
                }
            }
            return num;
        }
    }
}


Do Trung Duc [T2008A]
Do Trung Duc

2021-05-25 04:03:16



using System;

namespace Lesson5.OntapInterface
{
    class test
    {
        static HiredProgammers myemployee = new HiredProgammers(3);
        static void Main(string[] args)
        {
            for(int i = 0; i < 3; i++)
            {
                Console.WriteLine("nhap ten nhan vien thu {0}: ", i+1);
                string name = Console.ReadLine();
                Console.WriteLine("Nhap skill nhan vien:");
                string skills = Console.ReadLine();
                Console.WriteLine("Nhap ngay thang nam sinh nhan vien:");
                DateTime dob = DateTime.Parse(Console.ReadLine());
                Programmer programmer = new Programmer(i+1, name, skills, dob);
                Console.WriteLine("Tuoi: " + programmer.Age );
                myemployee.AddNew(programmer);
            }
            Console.WriteLine("Nhap vao do tuoi can kiem tra:");
            int checkage = Int32.Parse(Console.ReadLine());
            int checknumber = myemployee.ShowFillterInfo(checkage);
            Console.WriteLine("So nhan vien duoi {0} tuoi la {1}", checkage, checknumber);
        }
    }
}


Đăng nhập để làm bài kiểm tra

Chưa có kết quả nào trước đó