import org.mxchange.addressbook.exceptions.ContactAlreadyAddedException;
import org.mxchange.jcore.contact.Contact;
import org.mxchange.jcore.contact.Gender;
import org.mxchange.addressbook.exceptions.ContactAlreadyAddedException;
import org.mxchange.jcore.contact.Contact;
import org.mxchange.jcore.contact.Gender;