// Client program demonstrating usage of the TimePeriod class.
import java.util.*;

public class TimeClient {
   public static void main(String[] args) {
      List<TimePeriod> list = new ArrayList<TimePeriod>();
      list.add(new TimePeriod(13, 2, 54));
      list.add(new TimePeriod(4, 55, 04));
      list.add(new TimePeriod(18, 0, 0));
      list.add(new TimePeriod(23));
      list.add(new TimePeriod(15, 0));
      list.add(new TimePeriod(4, 55, 8));
      
      System.out.println(list);
      Collections.sort(list);
      System.out.println(list);
   }
}