Java tutorial
import java.sql.Timestamp; import java.text.DateFormat; import java.text.DecimalFormat; import java.text.NumberFormat; import java.text.SimpleDateFormat; import java.util.Date; public class Main { public static void main(String[] args) { long time = System.currentTimeMillis(); Date d = new Date(time); Timestamp t = new Timestamp(time); t.setNanos(123456789); System.out.println(d); System.out.println(t); DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss'.'"); NumberFormat nf = new DecimalFormat("000000000"); System.out.println(df.format(t.getTime()) + nf.format(t.getNanos())); } }