import java.util.Arrays;

class Testprogram {

    public static void main(String[] args) {
        Person[] personer = {
            new Person("Andreas", "Hurthe", 25),
            new Person("Kristine", "Henriksen", 30),
            new Person("Henrik", "Golsen", 25),
            new Person("Sigvart", "Dagsland", 29)
        };

        Arrays.sort(personer);

        for (Person p : personer) {
            System.out.println(p);
        }
    }
}