add code pstmt.setString(6, user.getUserType()); into two methods.

to add code pstmt.setString(6, user.getUserType()); into the method addUser.
to add code pstmt.setString(6, user.getUserType()); into the method updateUser 
& change the previous pstmt.setInt(6, user.getUserId()); to pstmt.setInt(7, user.getUserId());