DBUtil util = new DBUtil();

try {

        JOptionPane.showMessageDialog(null, "Connection Opened!");
        Connection con = util.getConnection();
        PreparedStatement stmt = con.prepareStatement("INSERT INTO dbo.mut_det(rm_id,box_no,weight,note_state,dm_state,[1]) VALUES (?,?,?,?,?,?)");
        String rm = (tf_rm_id.getText().trim() == null || tf_rm_id.getText().equals("")) ? "0" : tf_rm_id.getText();
        String a = (txtRe1.getText().trim() == null || txtRe1.getText().equals("")) ? "0" : txtRe1.getText();


cbdmnstat.getSelectedItem().equals("")) ? "0" : cbdmnstat.getSelectedItem();

            stmt.setInt(1, Integer.parseInt(rm));
            stmt.setInt(2, Integer.parseInt(bn));
            stmt.setString(3, ""+(bw));
            stmt.setString(4, ""+ns);
            stmt.setString(5, ""+ds);
            stmt.setInt(6, Integer.parseInt(a));



            stmt.execute();
        } catch (Exception ex) {
            JOptionPane.showMessageDialog(null, ex.getMessage());
            Logger.getLogger(Demo.class.getName()).log(Level.SEVERE, null, ex);
        }