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Listening for Approve and Cancel Events in a JFileChooser Dialog

import java.awt.Component; import java.awt.HeadlessException; import java.awt.event.ActionEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.AbstractAction; import javax.swing.JDialog; import javax.swing.JFileChooser; public class Main {   public static void main(String[] argv) throws Exception {          MyFileChooser chooser = new MyFileChooser();     chooser.setDialogType(JFileChooser.SAVE_DIALOG);     final JDialog dialog = chooser.createDialog(null);     chooser.addActionListener(new AbstractAction() {       public void actionPerformed(ActionEvent evt) {         JFileChooser chooser = (JFileChooser) evt.getSource();         if (JFileChooser.APPROVE_SELECTION.equals(evt.getActionCommand())) {           dialog.setVisible(false);         } else if (JFileChooser.CANCEL_SELECTION.equals(evt.getActionCommand())) {           dialog.setVisible(false);         }       }     });     dialog.addWindowListener(new WindowAdapter() {       public void windowClosing(WindowEvent e) {         dialog.setVisible(false);       }     });     dialog.setVisible(true);   } } class MyFileChooser extends JFileChooser {   public JDialog createDialog(Component parent) throws HeadlessException {     return super.createDialog(parent);   } }