import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
public class TestMain {
public static void main (String [] args) throws CDREParsexception{
Runnable runnable = new Runnable(){
public void run(){
System.out.println("hello!!!!");
}
};
ScheduledExecutorService service = Executors.newSingleThreadScheduledExecutor();
service.scheduleAtFixedRate(runnable, 0, 3, TimeUnit.SECONDS);
}
}