public class Solution {
  public static void main(String[] args) {
    ArrayList<Event> eventList = new ArrayList<Event>();
    eventList.add(new Event("Staff Meeting 1", 10.0f, 11.0f));
    eventList.add(new Event("Staff Meeting 2", 12.0f, 12.30f));
    System.out.println(eventList.toString());
  }
}

class Event {
  String title;
  float start_time;
  float end_time;

  public Event(String title, float start_time, float end_time) {
    this.title = title;
    this.start_time = start_time;
    this.end_time = end_time;
  }
}