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

public class SwingTest 
{


private static void createAndShowGUI() 
	{
	
	
   JFrame.setDefaultLookAndFeelDecorated(false);
   JFrame frame = new JFrame("HelloWorldSwing");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.setSize(new Dimension(120, 40));
		
   JEditorPane pane = new JEditorPane();
   pane.setEditable(true);
   frame.getContentPane().add(new JScrollPane(pane), "Center");
             
   frame.pack();
   frame.setVisible(true);
   }
   
    public static void main(String[] args) 
    {

      javax.swing.SwingUtilities.invokeLater(new Runnable(){ public void run() {createAndShowGUI();}});
       
     	String server = "irc.freenode.net";
      String nick = "wgb";
      String login = "wgb";
      String channel = "#wgb";
      
      Socket socket = new Socket(server, 6667);
      BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream( )));
		BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream( )));
      
      writer.write("NICK " + nick + "\r\n");
      writer.write("USER " + login + " 8 * : Jerk\r\n");
	   writer.flush( );
	   
	   String line = null;
      while ((line = reader.readLine( )) != null)
      {
		   if (line.indexOf("004") >= 0) 
		   {
		        break;
	      }

         else if (line.indexOf("433") >= 0) 
         {
              pane.setText(pane.getText() + new String("Nickname already in use."));
              return;
         }
      }

        writer.write("JOIN " + channel + "\r\n");
        writer.flush( );

        while ((line = reader.readLine( )) != null) 
        {
            if (line.toLowerCase( ).startsWith("PING ")) 
            {
                writer.write("PONG " + line.substring(5) + "\r\n");
                writer.write("PRIVMSG " + channel + " :I got pinged!\r\n");
                writer.flush( );
            }
            else 
            {
                pane.setText(pane.getText() + line);
            }

        }

    }


}






SwingTest.java:56: cannot find symbol
symbol  : variable pane
location: class SwingTest
              pane.setText(pane.getText() + new String("Nickname already in use."));
                           ^
SwingTest.java:56: cannot find symbol
symbol  : variable pane
location: class SwingTest
              pane.setText(pane.getText() + new String("Nickname already in use."));
              ^
SwingTest.java:74: cannot find symbol
symbol  : variable pane
location: class SwingTest
                pane.setText(pane.getText() + line);
                             ^
SwingTest.java:74: cannot find symbol
symbol  : variable pane
location: class SwingTest
                pane.setText(pane.getText() + line);