JFileChooser.setApproveButtonText() sets the title of the filechooser's
dialog in addition to the text of the approve button.

The following application demonstrates this.

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/*
 * JFileChooserTest.java
 * JFileChooser.setApproveButtonText() sets the title of the filechooser's
 * dialog in addition to the text of the approve button
 *
*/

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class JFileChooserTest extends JPanel implements ActionListener {
   JFrame f = new JFrame ();
   JPanel infoPanel = new JPanel ();
   JPanel p1 = new JPanel ();
   JPanel p2 = new JPanel ();
   JButton b = new JButton ("Show JFileChooser");
   JFileChooser fchooser = new JFileChooser();
   JTextField approveButtonText = new JTextField();

   public JFileChooserTest() {
      f.addWindowListener (new WindowAdapter () {
         public void windowClosing (WindowEvent e)
            {
            f.dispose ();
            System.exit (0);
            }
         });

      f.getContentPane().setLayout (new BorderLayout());
      infoPanel.setLayout (new GridLayout(0,1));
      p1.setLayout (new FlowLayout());
      p2.setLayout (new FlowLayout());
      p1.setBackground (Color.white);
      p2.setBackground (Color.pink);

      p1.add (b);
      approveButtonText.setToolTipText("Invokes JFileChooser.setApproveButtonText().");
      approveButtonText.setPreferredSize(new Dimension(250,25));
      approveButtonText.setActionCommand("Approve button text");
      p2.add (new JLabel("Approve button text: "));
      p2.add (approveButtonText);

      infoPanel.add (new JLabel("JFileChooser.setApproveButtonText() sets the title of the filechooser's dialog"));
      infoPanel.add (new JLabel("in addition to the text of the approve button."));
      infoPanel.add (new JLabel("Enter text in the textfield and press <ENTER> or <RETURN> to set the approve button's text."));
      infoPanel.add (new JLabel(""));
      f.getContentPane().add (BorderLayout.NORTH, infoPanel);
      f.getContentPane().add (BorderLayout.CENTER, p1);
      f.getContentPane().add (BorderLayout.SOUTH, p2);
      f.setTitle("JFileChooser.setApproveButtonText() Test");
      f.pack();
      f.setSize (730, 300);
      f.setVisible(true);

      b.addActionListener(this);
      approveButtonText.addActionListener(this);
   }

   public void actionPerformed(ActionEvent evt) {
        String command = evt.getActionCommand();
        if (command == "Show JFileChooser")
          fchooser.showOpenDialog(this);
        else if (command == "Approve button text")
          fchooser.setApproveButtonText(approveButtonText.getText());
   }

   public static void main (String[] args) {
      new JFileChooserTest();
   }

}
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