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copied!<p>As suggested <a href="https://stackoverflow.com/a/3072979/230513">here</a>, patterns such as <em>model-view-controller</em> and <em>observer</em> represent recurring design elements. A simple <a href="https://stackoverflow.com/a/2687871/230513">outline</a> may illustrate the interaction of classes, but a general solution is beyond the scope of StackOverflow.</p> <p>Still, it may be useful to look at how the principles might be applied. Suppose you are following the <a href="http://docs.oracle.com/javase/tutorial/essential/io/notification.html" rel="nofollow noreferrer">tutorial</a> and have implemented a <code>WatchService</code> in a <code>SwingWorker</code>, as shown <a href="https://stackoverflow.com/q/7784909/230513">here</a>. Now, suppose you want the main view, a <code>JTable</code>, to update itself in response to an arriving <code>WatchEvent</code>. You would arrange for the corresponding <code>TableModel</code> to register itself with the worker as a <code>PropertyChangeListener</code>, shown <a href="https://stackoverflow.com/q/7784909/230513">here</a> and <a href="https://stackoverflow.com/a/4637725/230513">here</a>. When the <code>PropertyChangeEvent</code> arrives, you update the <code>TableModel</code> and fire the appropriate event to update the <code>JTable</code>. The known <code>TableModel</code> implementations already include the required methods.</p> <p>A similar approach would be used to update the table in response to data arriving from the web.</p> <p>For settings, consider <code>java.util.Preferences</code>, mentioned <a href="https://stackoverflow.com/a/9481515/230513">here</a>, or <code>javax.jnlp.BasicService</code>, discussed <a href="https://stackoverflow.com/a/6886694/230513">here</a>.</p>

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