namespace pop
{
    using ArgumentException = System.ArgumentException;
    using Object            = System.Object;
    using String            = System.String;
    public class PersonImpl: Person
    {
        private String iName;
        private Date   iDateOfBirth;
        private String iPhoneNumber;
        private double iHeight;
        public PersonImpl(Person pPerson)
        {
            PersonImpl tPersonImpl = (PersonImpl)pPerson;
            iName        = tPersonImpl.iName;
            iDateOfBirth = new DateImpl(tPersonImpl.iDateOfBirth);
            iPhoneNumber = tPersonImpl.iPhoneNumber;
            iHeight      = tPersonImpl.iHeight;
        }
        public PersonImpl(string pPersonString)
        {
            try
            {
                string[] tokens = 
                        pPersonString.Split(new char[] {'%'});
                if (tokens.Length!=4)
                {
                    throw new ArgumentException();
                }            
                iName        = tokens[0];
                iDateOfBirth = new DateImpl(tokens[1]);
                iPhoneNumber = tokens[2];
                iHeight      = double.Parse(tokens[3]);
            }
            catch
            {
                iName        = "Joe";
                iDateOfBirth = new DateImpl(1970, 1, 1);
                iPhoneNumber = "0";
                iHeight      = 0.0;
                // throw new ArgumentException("illegal person");
            }
        }
        public PersonImpl(String pName, Date pDateOfBirth,
                          String pPhoneNumber, double pHeight)
        {
            iName        = pName;
            iDateOfBirth = new DateImpl(pDateOfBirth);
            iPhoneNumber = pPhoneNumber;
            iHeight      = pHeight;
        }
        public String Name
        {
            get { return iName;   } 
            set { iName = value;  }
        }
        public Date DateOfBirth
        {
            get { return iDateOfBirth;  }
            set { iDateOfBirth = value; }
        }
        public String PhoneNumber
        {
            get { return iPhoneNumber;    }
            set { iPhoneNumber = value;   }
        }
        public double Height
        {
            get { return iHeight;    }
            set { iHeight = value;   }
        }
        public override bool Equals(Object pObject)
        {
            PersonImpl tPersonImpl = (PersonImpl)pObject;
            return iName.Equals(tPersonImpl.iName);
        }
        public override int GetHashCode()
        {
            return 0;
        }
        public int CompareTo(object pObject)
        {
            PersonImpl tPersonImpl = (PersonImpl)pObject;
            return iName.CompareTo(tPersonImpl.iName);
        }
        public override String ToString()
        {
            return iName + "%" + iDateOfBirth +
                           "%" + iPhoneNumber + "%" + iHeight;
        }
    }
}