public class JavaDaemonTest {

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    public static void main(String args[]) {

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        // Create runnable action for daemon

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        Runnable daemonRunner = new Runnable() {

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            public void run() {

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                // Repeat forever

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                while (true) {

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                    System.out.println("I'm a Daemon.");

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                    // Sleep for half a second

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                    try {

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                        Thread.sleep(500);

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                    } catch (InterruptedException ignored) {

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                    }

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                }

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            }

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        };

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        // Create and start daemon thread

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        Thread daemonThread = new Thread(daemonRunner);

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        daemonThread.setDaemon(true);

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        daemonThread.start();

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        // Sleep for five seconds

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        try {

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            Thread.sleep(5000);

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        } catch (InterruptedException ignored) {

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        }

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        System.out.println("Done.");

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    }

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}