How to implement JFileChooser dialog into a Frame in Java using Swing ?.

A Simple program demonstrating the working of JFileChooser dialog in Java using Swing framework.

package com.hubberspot.swing.example;

import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;

public class FileChooserDemo extends JFrame {
 
  private JTextField display = new JTextField();
  private JButton open = new JButton("Open");
  private JButton save = new JButton("Save");
 
  public FileChooserDemo() {
    JPanel panel = new JPanel();
    open.addActionListener(new OpenClass());
      panel.add(open);
    save.addActionListener(new SaveClass());
      panel.add(save);
    add(panel, BorderLayout.SOUTH);
    display.setEditable(false);
    panel = new JPanel();
    panel.setLayout(new GridLayout(2,1));
    panel.add(display);
    add(panel, BorderLayout.NORTH);
  }

  class OpenClass implements ActionListener {
    public void actionPerformed(ActionEvent e) {
      JFileChooser chooser = new JFileChooser();
   
      int option = chooser.showOpenDialog(FileChooserDemo.this);
      if(option == JFileChooser.APPROVE_OPTION) {
 display.setText("You chose " + 
 ((chooser.getSelectedFile()!=null)?
 chooser.getSelectedFile().getName():
 "nothing"));
      }
      
      if(option == JFileChooser.CANCEL_OPTION) {
 display.setText("You canceled.");
      }
  }
 }

  class SaveClass implements ActionListener {
    public void actionPerformed(ActionEvent e) {
      JFileChooser chooser = new JFileChooser();
   
      int option = chooser.showSaveDialog(FileChooserDemo.this);
      if(option == JFileChooser.APPROVE_OPTION) {
 display.setText("You chose " + 
 ((chooser.getSelectedFile()!=null)?
 chooser.getSelectedFile().getName():
 "nothing"));
       }
 
      if(option == JFileChooser.CANCEL_OPTION) {
 display.setText("You canceled.");
      }
   }
  }

   public static void main(String[] args) {
     setFrame(new FileChooserDemo(), 200, 100);
   }

   public static void 
     setFrame(final JFrame frame, final int width, final int height) {
     SwingUtilities.invokeLater(new Runnable() {
 public void run() {
   frame.setTitle(frame.getClass().getSimpleName());
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.setSize(width, height);
   frame.setVisible(true);
   }
  });
 }

} 

Output of the program :