addressphone.java

Java程序设计技巧与开发实例附书源代码。

import java.io.*;

public class AddressPhone
    extends Address
{
   protected String phone;
   public AddressPhone()
   {
      first = email = phone = "";
   }

   public AddressPhone(String _first, String _email, String _phone)
   {
      super(_first, _email);
      phone = _phone;
   }

   public String toString()
   {
      return super.toString() + " - " + phone;
   }

   public void save(DataOutputStream out) throws IOException
   {
      out.writeUTF("AddressPhone");
      out.writeUTF(first);
      out.writeUTF(email);
      out.writeUTF(phone);
   }

   public void load(DataInputStream in) throws IOException
   {
      super.load(in);
      phone = in.readUTF();
   }
}