public static void insertSampleData(Statement stmt) {
        
        String insert = "INSERT INTO Conditions (CODE, DESCRIPTION) VALUES ";
        
        String[] codes = { " ('A', 'New') ",
                           " ('B', 'Good working condition') ",
                           " ('C', 'Satisfactory working condition') ",
                           " ('D', 'Usable, but not working properly') ",
                           " ('F', 'Faulty, not usable') ",
                           " ('N', 'Not repairable') ",
                           " ('Z', 'Scrapped') "
                         };
        
        try {
            String insertCondition;
            for( int i = 0; i < codes.length; i++) {
                insertCondition = insert + codes[i];
                stmt.executeUpdate(insertCondition);
            }
        } catch (SQLException ex) {
            ex.printStackTrace();
        }
    }