import java.time.Instant;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
public class Main {
public static void main
(String[] args
) { Executors.newScheduledThreadPool(1)
.scheduleWithFixedDelay(
() -> System.
out.
println(Instant.
now()),
0,
1,
TimeUnit.SECONDS
);
}
}
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