This is typically achieved with a technique called AJAX. This technique loads data asynchronously (in the background) so it can update your content without needing to reload the page. The easiest way to implement AJAX is with the jQuery load() method. This method provides a simple way to load data asynchronous from a web server … Read more
You can do it with PHP: header(“Refresh:0”); It refreshes your current page, and if you need to redirect it to another page, use following: header(“Refresh:0; url=page2.php”);
If you want to notify your JTable about changes of your data, use tableModel.fireTableDataChanged() From the documentation: Notifies all listeners that all cell values in the table’s rows may have changed. The number of rows may also have changed and the JTable should redraw the table from scratch. The structure of the table (as in … Read more
Use Ajax for this. Build a function that will fetch the current page via ajax, but not the whole page, just the div in question from the server. The data will then (again via jQuery) be put inside the same div in question and replace old content with new one. Relevant function: http://api.jquery.com/load/ e.g. $(‘#thisdiv’).load(document.URL … Read more
#1 can be implemented via window.onbeforeunload. For example: <script type=”text/javascript”> window.onbeforeunload = function() { return “Dude, are you sure you want to leave? Think of the kittens!”; } </script> The user will be prompted with the message, and given an option to stay on the page or continue on their way. This is becoming more … Read more
Here is a complete example that uses ObservedPanel in a modeless dialog. public class PropertyChangeDialog extends JPanel { private JLabel label = new JLabel(“null”, JLabel.CENTER); private ObservedPanel observed = new ObservedPanel(); public PropertyChangeDialog() { this.setBorder(BorderFactory.createTitledBorder(“Observer”)); this.add(label); observed.addPropertyChangeListener(new PropertyChangeListener() { @Override public void propertyChange(PropertyChangeEvent e) { if (e.getPropertyName().equals(ObservedPanel.PHYSICIST)) { String value = e.getNewValue().toString(); label.setText(value); } } … Read more
for example, import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.Random; import java.util.Vector; import javax.swing.*; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; import javax.swing.event.TableModelEvent; import javax.swing.event.TableModelListener; import javax.swing.table.AbstractTableModel; import javax.swing.table.TableCellRenderer; public class Forum implements ListSelectionListener { private JFrame frame = new JFrame(“Frame”); private JPanel fatherCenter = new JPanel(); private JScrollPane tableScroll = new JScrollPane(); private myTableModel tableModel; private JTable … Read more
Here’s code for Python 3.x: print(os.path.getsize(file_name)/1024+’KB / ‘+size+’ KB downloaded!’, end=’\r’) The end= keyword is what does the work here — by default, print() ends in a newline (\n) character, but this can be replaced with a different string. In this case, ending the line with a carriage return instead returns the cursor to the … Read more
It is up to the browser but they behave in similar ways. F5 usually updates the page only if it is modified. Modern browsers sends Cache-Control: max-age=0 to tell any cache the maximum amount of time a resource is considered fresh, relative to the time of the request. CTRL–F5 is used to force an update, … Read more
You’re writing the file straight into the IDE’s project folder and your intent seems to save the file in the webapp’s deploy folder. This is a bad idea and well due to the following 3 main reasons: Changes in the IDE’s project folder does not immediately get reflected in the server’s work folder. There’s kind … Read more