I want to know number of rows updated by my query

I want to know how many rows have been updated caused by an update query?. Does any database variable can tell me that ?

PreparedStatment pstmt = conn.prepareStatement("my updated query");
pstmt.setXXX
int rowsupdated = pstmt.executeUpdate();
rowsupdated = no of rows updated by the statement executed by this prepared statement.
Elango.

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