public static void main(String[] args) throws Exception {
		for (int i = 0; i < 10; i++) {
			Thread daemon = new Thread(new _5_SimpleDaemons());
			daemon.setDaemon(true); // Must call before start()
			daemon.start();
		}
		System.out.println("All daemons started");
		TimeUnit.SECONDS.sleep(1);
	}