- package utility;
- import java.util.HashSet;
- import java.util.Set;
- public class Event {
- private Set<Runnable> listeners = new HashSet<Runnable>();
- public void addListener(Runnable listener) {
- listeners.add(listener);
- }
- public void broadcast() {
- listeners.forEach(x -> x.run());
- }
- }
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