Java networking basics - JavaTech: An Introduction to Scientific and Technical Computing with Java - page 420

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import java.net.*;
/** Demonstration of reading a local file with a URL. **/
public class ReadFileViaURL extends JApplet
implements ActionListener
{
// A Swing text area for display of string info
JTextArea fTextArea;
String fFileToRead =" data.txt " ;
StringBuffer fBuf;
// Flag for whether the applet is in a browser
// or running via the main () below.
boolean fInBrowser = true;
/** Build the GUI. **/
public void init () {
// Create a User Interface with a text area with
// scroll bars and a Go button to initiate processing
// and a Clear button to clear the text area.
Container content - pane = getContentPane ();
JPanel panel = new JPanel (new BorderLayout ());
// Create a text area to display file contents.
fTextArea = new JTextArea ();
fTextArea.setEditable (false);
// Add to a scroll pane so that a long list of
// computations can be seen.
JScrollPane area - scroll - pane = new JScrollPane
(fTextArea);
panel.add (area - scroll - pane, BorderLayout.CENTER);
JButton go - button = new JButton ( " Go " );
go - button.addActionListener (this);
JButton clear - button = new JButton ( " Clear " );
clear - button.addActionListener (this);