public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (getClass() != obj.getClass()) return false;
Scheduled other = (Scheduled) obj;
if (!event.equals(other.event)) return false;
return runnable.equals(other.runnable);
}
public int hashCode() {
return 31 * (31 + event.hashCode()) + runnable.hashCode();
}