import java.util.Arrays;

class TestProgram {
    public static void main(String[] args) {
        Person[] personer = {
              new Person(25),
              new Person(30),
              new Person(24),
              new Person(29),
            };
            for (Person p: personer) {
                System.out.println(p.hentAlder());
            }

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

    }
}