C# ICloneable,shallow clone,deep clone.

[Serializable]
    public class Person:ICloneable
    {       
        public string Name { get; set; }
        public int Id { get; set; }
        public int Age { get; set; }
        public Department Department { get; set; }

        public object Clone()
        {
           return  this.MemberwiseClone();
        }


        public Person ShallowClone()
        {
            return Clone() as Person;
        }

        public Person DeepClone()
        {
            using (Stream objStream = new MemoryStream())
            {
                IFormatter formatter = new BinaryFormatter();
                formatter.Serialize(objStream, this);
                objStream.Seek(0, SeekOrigin.Begin);
                return formatter.Deserialize(objStream) as Person;
            }
        }
    }

    [Serializable]
    public class Department
    {
        public string DeptName { get; set; }
        public int DeptId { get; set; }
    }

 class Program
    {
        static void Main(string[] args)
        {
            CloneDemo();
            Console.ReadLine();
        }

        static void CloneDemo()
        {
            Person fred = new Person()
            {
                Id = 1,
                Name = "Fred",
                Age = 32,
                Department=new Department()
                {
                    DeptId=1,
                    DeptName="Dept1"
                }
            };

            Console.WriteLine($"fred,name:{fred.Name},Id:{fred.Name},department name:{fred.Department.DeptName},deptid:{fred.Department.DeptId}");

            Person shallowClonePerson = fred.ShallowClone() as Person;
            Console.WriteLine($"shallowClonePerson,Name:{shallowClonePerson.Name},Id:{shallowClonePerson.Id},department name:{shallowClonePerson.Department.DeptName},deptId:{shallowClonePerson.Department.DeptId}");

            fred.Id = 2;
            fred.Name = "fred2";
            fred.Age = 33;
            fred.Department.DeptId = 2;
            fred.Department.DeptName = "dept2";
            Console.WriteLine($"shallowClonePerson,Name:{shallowClonePerson.Name},Id:{shallowClonePerson.Id},department name:{shallowClonePerson.Department.DeptName},deptId:{shallowClonePerson.Department.DeptId}");


            Person deepClonePerson = fred.DeepClone() as Person;                      
            Console.WriteLine($"deepClonePerson,Name:{deepClonePerson.Name},Id:{deepClonePerson.Id},department name:{deepClonePerson.Department.DeptName},id:{deepClonePerson.Department.DeptId}");
                        
            fred.Id = 3;
            fred.Name = "Fred3";
            fred.Age = 34;
            fred.Department.DeptId = 3;
            fred.Department.DeptName = "dept3";
            Console.WriteLine($"deepClonePerson,Name:{deepClonePerson.Name},Id:{deepClonePerson.Id},department name:{deepClonePerson.Department.DeptName},id:{deepClonePerson.Department.DeptId}");
        }
}