package oving5.named; import java.util.Comparator; public class NamedComparator implements Comparator { @Override public int compare(Named named1, Named named2) { int a = named1.getFamilyName().compareTo(named2.getFamilyName()); if (a == 0) { return named1.getGivenName().compareTo(named2.getGivenName()); } return a; } }