SimpleDateFormat and Milliseconds

Question

Hi,
This is for Oracle 9i's Timestamp field.In the code, I have a java.sql.Timestamp object ,example, 2003-07-21 09:10:11.234.What Iam trying to do is to create a string with the format dd-MMM-yyyy HH:mm:ss.SSS , for the above example it would be :
21-JUL-2003 09:10:11.234
So, this is what Iam doing in the code,
SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss.SSS");
String formattedValue = sdf.format(unformattedValue);
System.out.println(" unformattedValue: " + unformattedValue);
System.out.println(" formattedValue: " + formattedValue);
here, unformattedValue is the original java.sql.Timestamp object.
what I see in the output is
unformattedValue: 2003-07-21 09:10:11.234
formattedValue: 21-JUL-2003 09:10:11.0
I dont understand why the formatted isn't 21-JUL-2003 09:10:11.234
Any idea what Iam doing wrong.
Thanks,
Sunjit

Answer 1

Found the solution:
// trying to convert date from yyyy-MM-dd HH:mm:ss.SSS to dd-MMM-yyyy HH:mm:ss.SSS
SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss.SSS");
System.out.println(" TRYING TO CONVERT: " + unformattedDate);
System.out.println(" unformattedDate.getClass(): " + unformattedDate.getClass());
int millis = (int) ((((java.sql.Timestamp) unformattedDate).getNanos())/1000000);
System.out.println("--millis: " + millis);
System.out.println("-- unformattedDate.getTime(): " + unformattedDate.getTime());
long finalstuff = unformattedDate.getTime() + millis;
System.out.println("-- finalstuff: " + finalstuff);
java.util.Date date = new java.util.Date(unformattedDate.getTime() + millis);
String dateAsAFormattedString = formatter.format(date);
System.out.println(" dateAsAFormattedString: " + dateAsAFormattedString);
OUTPUT
TRYING TO CONVERT: 2003-07-22 09:10:11.234
unformattedDate.getClass(): class java.sql.Timestamp
--millis: 234
-- unformattedDate.getTime(): 1058879411000
-- finalstuff: 1058879411234
dateAsAFormattedString: 22-Jul-2003 09:10:11.234