//********************************************************************
//  Contact.java       Author: Lewis and Loftus
//
//  Represents a phone contact.
//********************************************************************

class Contact implements Comparable
{
   private String firstName, lastName, phone;

   //-----------------------------------------------------------------
   //  Sets up this contact with the specified information.
   //-----------------------------------------------------------------
   public Contact (String firstName, String lastName, String phone)
   {
      this.firstName = firstName;
      this.lastName = lastName;
      this.phone = phone;
   }

   //-----------------------------------------------------------------
   //  Returns a description of this contact as a string.
   //-----------------------------------------------------------------
   public String toString ()
   {
      return lastName + ", " + firstName + "\t" + phone;
   }

   //-----------------------------------------------------------------
   //  Uses both last and first names to determine lexical ordering.
   //-----------------------------------------------------------------
   public int compareTo (Object other)
   {
      int result;

      if (lastName.equals(((Contact)other).lastName))
         result = firstName.compareTo(((Contact)other).firstName);
      else
         result = lastName.compareTo(((Contact)other).lastName);

      return result;
   }
}