java sleep milliseconds

/**
 * @author lautturi.com 
 * Java example:  count down 3 seconds
 */

import java.util.*;

public class Lautturi {
	public static void main(String[] args) throws InterruptedException {
		for (int i = 3; i >0; i--) {
        	System.out.println(i);
          	Thread.sleep(1000); // sleep 1000 millisecond / 1 seconds
        }

	}
}