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POOverriding abstract methods in Java
 

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    <p>Here is a class View of the MVC paradigm, the class consist of 2 <code>JDialogs</code>, to be opened on click of <code>JMenuItem</code> - <code>addEvent</code> and <code>editEvent</code>. </p> <pre><code> public class EventView extends javax.swing.JFrame { private javax.swing.JDialog addDialog; private javax.swing.JDialog editDialog; private EventModel model; /** Constructor */ public EventView(EventModel model) { initComponents(); this.model = model; updateEventTable(); } public void addEventListener(ActionListener al) { addEventButton.addActionListener(al); } /* public void clearListener(ActionListener cl) { clearEventButton.addActionListener(cl); }*/ public void addDialog(ActionListener ae) { addEvent.addActionListener(ae); } public void editDialog(ActionListener ee) { editEvent.addActionListener(ee); } } </code></pre> <p>The controller class handles the user interaction with listeners. </p> <pre><code>public class EventController implements ActionListener { //... The Controller needs to interact with both the Model and View. private EventModel model; private EventView view; /** Constructor */ public EventController(EventModel model, EventView v){ model = new EventModel(); view = v; //... Add listeners to the view. view.addEventListener(new addEventListener()); //view.clearListener(new clearEventListener()); view.addDialog(new addDialogListener()); view.editDialog(new editDialogListener()); } class addEventListener implements ActionListener { public void actionPerformed(ActionEvent e) { String name = ""; String date; String start=""; String end=""; String venue=""; String details=""; String opportunities=""; String moreOppor=""; try { name = view.getEventName(); date = view.eventDate().toString(); start = view.startTime(); end = view.endTime(); venue = view.locationWhere(); details = view.getDetails(); opportunities = view.getOpportunities(); moreOppor = view.getMore(); model.addEvent(name,date,start,venue,details,opportunities,moreOppor,end); view.showSuccess("Event Added!"); } catch (Exception ex) { view.showError(ex); } } } class addDialogListener implements ActionListener { @Override public void actionPerformed(ActionEvent e) { System.out.println(""); } } class editDialogListener implements ActionListener { @Override public void actionPerformed(ActionEvent e) { System.out.println(""); } } </code></pre> <p>I have two question in relation to this module:</p> <ol> <li><p><code>EventController</code> is showing an error that it is not abstract and does not override abstract method actionPerformed when I believe I did. Correct me if im wrong. I do have an additional JMenuItem called <code>deleteEvent</code> but I havent touched that yet. Working on NetbeansIDE F.Y.I</p></li> <li><p>I would like to replace the lines <code>System.out.println("");</code> with something that will allow me to display the dialog <code>addDialog</code> of the view class but I cannot access the component. how to do this? I've tried <code>view.</code> but it doesnt show up allow for <code>setVisible(true)</code> . </p></li> </ol>
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    1. USHoody
    1. USHoody
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    1. CO_the class consist of 2 JDialogs_ I must be somehow blind because I see absolutely no JDIalog
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      1. USGuillaume Polet
    2. COWhere do you think EventController is overriding actionPerformed? EventController appears to consist of two fields, a constructor, and three inner classes - no methods at all.
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      1. USJon Skeet
 

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