public class JFileChooser extends JComponent implements Accessible

import javax.swing.*;  
import java.awt.event.*;  
import java.io.*;  
public class FileChooserExample extends JFrame implements ActionListener{  
JMenuBar mb;  
JMenu file;  
JMenuItem open;  
JTextArea ta;  
FileChooserExample(){  
open=new JMenuItem("Open File");  
open.addActionListener(this);          
file=new JMenu("File");  
file.add(open);           
mb=new JMenuBar();  
mb.setBounds(0,0,800,20);  
mb.add(file);            
ta=new JTextArea(800,800);  
ta.setBounds(0,20,800,800);            
add(mb);  
add(ta);            
}  
public void actionPerformed(ActionEvent e) {  
if(e.getSource()==open){  
JFileChooser fc=new JFileChooser();  
int i=fc.showOpenDialog(this);  
if(i==JFileChooser.APPROVE_OPTION){  
File f=fc.getSelectedFile();  
String filepath=f.getPath();  
try{
BufferedReader br=new BufferedReader(new FileReader(filepath));  
String s1="",s2="";                
while((s1=br.readLine())!=null){  
s2+=s1+"\n";  
}  
ta.setText(s2);  
br.close();  
}catch (Exception ex) {ex.printStackTrace();  }               
}  
}  
}        
public static void main(String[] args) {  
FileChooserExample om=new FileChooserExample();  
             om.setSize(500,500);  
             om.setLayout(null);  
             om.setVisible(true);  
             om.setDefaultCloseOperation(EXIT_ON_CLOSE);  
}  
}