Identifier expected error......plzz help

Question

it is showing the error ....identifier expected where i am declaring the variables JTextArea and JButton....
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
import javax.swing.filechooser.*;
import javax.swing.SwingUtilities.*;
//import javax.swing.JEditorPane;
import java.net.URL;
public class tm extends JPanel implements ActionListener
     public static void main(String args[]) throws Exception
     JTextArea = program, input, state;
     JButton = loadp, run, step,loadi;
     public tm()
          JPanel c = new JPanel();
          c.setLayout(new GridLayout(1,1));
          loadi = new JButton("LOAD INPUT STRING");
          contentPane.add(loadi);
          loadi.addActionListener(this);
          loadp = new JButton("LOAD PROGRAM");
          contentPane.add(loadp);
          loadp.addActionListener(this);
          run = new JButton("RUN");
          contentPane.add(run);
          run.addActionListener(this);
          step = new JButton("STEP");
          contentPane.add(step);
          step.addActionListener(this);
          program=new JTextArea("");
          program.setBounds(100,400,100,400);
          input=new JTextArea("");
          input.setBounds(300,400,200,50);
          state=new JTextArea("");
          state.setBounds(700,400,100,50);
     public void actionPerformed(ActionEvent e)
       try{
         if(e.getSource()==loadp)
              JFileChooser chooser=new JFileChooser();
               int r= chooser.showOpenDialog(this);
               if(r==JFileChooser.APPROVE_OPTION)
                    String name=chooser.getSelectedFile().getName();
                    File f=chooser.getSelectedFile();
                    FileInputStream filestream = new FileInputStream(f); 
                    BufferedInputStream bufferstream = new BufferedInputStream(filestream); 
                    DataInputStream datastream = new DataInputStream(bufferstream); 
                    String record = null;
                    tapep.setText("");
                    try { 
                           while ( (record=datastream.readLine()) != null )
                              program.append(record);                         
                        catch (Exception p)
                          System.out.println(p);                      
          else if(e.getSource()==run)
          else if(e.getSource()==step)
          else if(e.getSource()==loadi)
       catch(Exception t)
            System.out.println(t);
}

Answer 1

     public static void main(String args[]) throws Exception
     JTextArea = program, input, state;
     JButton = loadp, run, step,loadi;That's not valid Java syntax.
The Java? Tutorial - Trail: Learning the Java Language
~