JFileChooser Example in Java Swing

import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.SwingUtilities;
import javax.swing.filechooser.*;

public class Gmail extends JPanel implements ActionListener {
    static private final String newline = "\n";
    JButton openButton, saveButton;
    JTextArea log;
    JFileChooser fc;

    public Gmail() {
        super(new BorderLayout());
        log = new JTextArea(5,20);
        log.setMargin(new Insets(5,5,5,5));
        log.setEditable(false);
        JScrollPane logScrollPane = new JScrollPane(log);
        fc = new JFileChooser();
        openButton = new JButton("Open a File...");//,createImageIcon("2.jpg"));
        openButton.addActionListener(this);
        saveButton = new JButton("Save a File...");//,createImageIcon("2.jpg"));
        saveButton.addActionListener(this);
        JPanel buttonPanel = new JPanel(); //use FlowLayout
        buttonPanel.add(openButton);
        buttonPanel.add(saveButton);
        add(buttonPanel, BorderLayout.PAGE_START);
        add(logScrollPane, BorderLayout.CENTER);
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == openButton) {
            int returnVal = fc.showOpenDialog(Gmail.this);

            if (returnVal == JFileChooser.APPROVE_OPTION) {
                File file = fc.getSelectedFile();
                log.append("Opening: " + file.getName() + "." + newline);
            } else {
                log.append("Open command cancelled by user." + newline);
            }
            log.setCaretPosition(log.getDocument().getLength());
        } else if (e.getSource() == saveButton) {
            int returnVal = fc.showSaveDialog(Gmail.this);
            if (returnVal == JFileChooser.APPROVE_OPTION) {
                File file = fc.getSelectedFile();
                log.append("Saving: " + file.getName() + "." + newline);
            } else {
                log.append("Save command cancelled by user." + newline);
            }
            log.setCaretPosition(log.getDocument().getLength());
        }
    }

    protected static ImageIcon createImageIcon(String path) {
        java.net.URL imgURL = Gmail.class.getResource(path);
        if (imgURL != null) {
            return new ImageIcon(imgURL);
        } else {
            System.err.println("Couldn't find file: " + path);
            return null;
        }
    }

    private static void createAndShowGUI() {
        JFrame frame = new JFrame("Gmail");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(new Gmail());
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
         SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                UIManager.put("swing.boldMetal", Boolean.FALSE); 
                createAndShowGUI();
            }
        });
    }
}