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Home/ Questions/Q 7708031
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Editorial Team
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Editorial Team
Asked: June 1, 20262026-06-01T00:30:26+00:00 2026-06-01T00:30:26+00:00

Hi I have this method below which should insert values into my database. However

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Hi I have this method below which should insert values into my database. However I am getting a Null Pointer Exception on the PreparedStatement line

   public void insertReservation(String name, String phone, int size, String date, String time, String additionalRequirements, String memberID, String themeID) throws SQLException, ClassNotFoundException {

        try {
            String strQuery = "INSERT INTO reservation VALUES (?, ? ,?, TO_DATE(?, 'dd-MMM-yy'), ?, ?, ?, ?)";
            PreparedStatement stmt = conn.prepareStatement(strQuery);/
            stmt.setString(1, name);
            stmt.setString(2, phone);
            stmt.setInt(3, size);
            stmt.setString(4, date);
            stmt.setString(5, time);
            stmt.setString(6, additionalRequirements);
            stmt.setString(7, memberID);
            stmt.setString(8, themeID);
            results = stmt.executeQuery();

        } catch (Exception e) {
            e.printStackTrace();
        }//end try
    }

Am I inserting this correctly into my database? I am not sure why I am getting this null pointer exeception error.

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  1. Editorial Team
    Editorial Team
    2026-06-01T00:30:27+00:00Added an answer on June 1, 2026 at 12:30 am

    conn is null, print its value.

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