Code example for Set

Methods: remove

0
		return _userUUIDStore.add(userUUID);
	} 
 
	@Override 
	public boolean unregister(String userUUID) {
		return _userUUIDStore.remove(userUUID);
	} 
 
	private final Set<String> _userUUIDStore = new ConcurrentHashSet<String>();
 
} 
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