!= null) {
                classCatalogDb.close();
            }</code></strong>
        } catch(DatabaseException dbe) {
            System.err.println("Error closing MyDbs: " +
                                dbe.toString());
            System.exit(-1);
        }
    }
} </pre>
        </div>
      </div>
      <br class="example-break" />
      <p>
        So far we have identified the data that we want to store in our
        databases and how we will convert that data in and out of
        <code class