import java.util.Vector;

public class AddressBook
{
    private Vector addresses;

    public AddressBook()
    {   addresses = new Vector();
    }

    public void addAddress(Address a)
    {   addresses.addElement(a);
    }

    public void delAddress(int i)
    {   addresses.remove(i);
    }

    public Address getAddress(int i)
    {   return (Address)addresses.get(i);
    }

    public int getSize()
    {   return addresses.size();
    }
}