private void voegIngToe() {
            try
            {
              Statement query = db.createStatement();
              String naam = naamVeld.getText();
              Double p = new Double(prijsVeld.getText().trim());
              double prijs = p.doubleValue();
              String eenheid = eenheidVeld.getText();

              String sql ="INSERT INTO Voorraad (naam,kost,perEenheid)" + "VALUES ('" + naam + "'," + prijs +",'" + eenheid + "')";
              query.executeUpdate(sql);
            } //END try() TO WRITE RECORD

            //CATCH NUMBER FORMAT EXCEPTION FOR PRICE FIELD
            catch (NumberFormatException nfe)
            {
              JOptionPane.showMessageDialog(null,"\n\nWRITE FILE ERROR\n"
                                        + "MAKE SURE PRICE OR AMOUNT IS CORRECT\n"
                                        + nfe.toString());
            }//END NumberFormatcatch()

            //CATCH ANY EXCEPTIONS WRITING TO FILE
            catch (SQLException io)
            { 
                JOptionPane.showMessageDialog(null,"\nERROR WRITING FILE\n"+ io.toString());
            }//END IO catch()

            //CLEAR TEXT FIELDS
            naamVeld.setText("");
            prijsVeld.setText("");
            eenheidVeld.setText("");
            return true;
    }