file reader

import javax.swing.JApplet; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JPasswordField; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.JTextField;

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

import javax.swing.*; import javax.swing.border.*; import java.io.FileReader;

  public class gui extends JApplet {

{

 final JTextPane pane = new JTextPane();


    JFrame frame = new JFrame("filedemo");
    frame.setVisible(true);
    frame.setSize(200,200);

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 


    JLabel label = new JLabel("Enter the filename with file path:");


    JLabel label2= new JLabel("Press the button");

    JPanel panel = new JPanel();
    frame.add(panel);
    panel.add(label);
    panel.add(label2);



    JButton b1 = new JButton("file1");
    panel.add(b1); 


    JButton b2 = new JButton("file2");
    panel.add(b2); 

    JButton b3 = new JButton("Quit");
    panel.add(b3);

    JLabel label1= new JLabel("Supervisor");
    panel.add(label1);

    JLabel label3= new JLabel("Student");
    panel.add(label3);




    // button to insert an icon
    final ImageIcon icon11 = new ImageIcon("bluepaw.gif");
    JButton iconButton1 = new JButton(icon11);
    iconButton1.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent event) {
        pane.insertIcon(icon11);
      } 
      });

}

}

hi friend,i am using eclipse software.my question is :how to write filepath for JButton.and also how to open that filepath .Thanking in advance.bala