Question

When I select a row in a JTable, my JTable doesn’t get updated anymore. When I don’t select a row, the code beneath works as expected. A row is added to the JTable.

    @Override public void update (Observable arg0, Object arg1) {     if (arg0 instanceof Logger)     {         LogItem last = systemController.logController.getLog().getLastLogItem();         this.history.add(last);         this.logTableModel.addItem(last);          this.logTable.tableChanged(new TableModelEvent(this.logTableModel));         ((DefaultTableModel)this.logTable.getModel()).fireTableStructureChanged();         this.logTable.repaint();         this.logTable.doLayout();     }  } 

When I close the window and reopen it, I can see the new row.

Can someone explain me why, after selecting a row, I don’t see any updates in the JTable anymore?

Answer 1

Is the update() call happening in the Swing event thread? If not the code will need to be wrapped with something like:

SwingUtilities.invokeLater(new Runnable() { public void run() {   logTableModel.addItem(last); }});