/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
*
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* modification, are permitted provided that the following conditions
* are met:
*
*   - Redistributions of source code must retain the above copyright
*     notice, this list of conditions and the following disclaimer.
*
*   - Redistributions in binary form must reproduce the above copyright
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*     documentation and/or other materials provided with the distribution.
*
*   - Neither the name of Oracle or the names of its
*     contributors may be used to endorse or promote products derived
*     from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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import java.util.Timer;
import java.util.TimerTask;

/**
 *Simple countdown timer demo of java.util.Timer facility.
 */

public class Countdown {
    public static void main(final String args[]) {
        if (args.length != 1) {
            System.err.println("Usage: java Countdown <time in secs>");
            System.exit(1);
        }
        final Timer timer = new Timer();
        timer.scheduleAtFixedRate(new TimerTask() {
            int i = Integer.parseInt(args[0]);
            public void run() {
                System.out.println(i--);
                if (i< 0)
                    timer.cancel();
            }
        }, 0, 1000);
    }
}