MVC (JAVA)

Hej!

Behöver hjälp med att få min kod till MVC-modellen (Model, Control, View(tre klasser)). Här följer koden:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.Random;

public class Class1 extends JFrame
implements ActionListener {

private JMenuItem fMenuOpen;
private JMenuItem fMenuSave;
private JMenuItem fMenuClose;
private JMenuItem fMenuRandom;
private JMenuItem fMenuClear;
private JTextArea textruta;
File theFile = new File ("*.java");

public Class1 (String title) {
super(title);

Container content_pane = getContentPane();

content_pane.setLayout (new BorderLayout());
textruta = new JTextArea();

JMenu downMenu = new JMenu ("Arkiv");
content_pane.add(textruta);

downMenu.add(fMenuRandom = createMenuItem("Random numbers"));
downMenu.add(fMenuClear = createMenuItem("Clear"));
downMenu.add(fMenuSave = createMenuItem("Save"));
downMenu.add(fMenuOpen = createMenuItem("Open"));
downMenu.addSeparator();
downMenu.add(fMenuClose = createMenuItem("Quit"));

JMenuBar menuBar = new JMenuBar();
menuBar.add (downMenu);

setJMenuBar (menuBar);
setSize (250, 250);
setLocation(400, 100);
}

private JMenuItem createMenuItem(String name) {
JMenuItem m = new JMenuItem(name);
m.addActionListener(this);
return m;
}

public void actionPerformed (ActionEvent e) {
boolean status = false;

String command = e.getActionCommand();
if (command.equals("Clear")){
textruta.setText(null);
}

if (command.equals("Random numbers")){

Random randomNr = new Random();

int tal;
for (int i = 0; i < 7; i++) {
tal = randomNr.nextInt(35);
textruta.append(tal + " ");
}
}

if (command.equals ("Open")) {
status = openFile ();

} else if (command.equals ("Save")) {
status = saveFile ();

} else if (command.equals ("Quit") ) {
System.exit(1);
}
}

boolean openFile () {

JFileChooser fc = new JFileChooser();
fc.setDialogTitle ("Open file");

int result = fc.showOpenDialog(this);

if (result == JFileChooser.CANCEL_OPTION) {
return true;
} else if (result == JFileChooser.APPROVE_OPTION) {

theFile = fc.getSelectedFile();
String file_string = readFile (theFile);

if (file_string != null)
textruta.setText (file_string);
else
return false;
}
return true;
}

boolean saveFile() {
File file = null;
JFileChooser fc = new JFileChooser();

fc.setSelectedFile (theFile);

int result = fc.showSaveDialog (this);

if (result == JFileChooser.CANCEL_OPTION) {
return true;
} else if (result == JFileChooser.APPROVE_OPTION) {
theFile = fc.getSelectedFile();

return writeFile (theFile, textruta.getText());
} else {
return false;
}
}

public String readFile (File file) {

StringBuffer fileBuffer;
String fileString = null;
String line;

try {
FileReader in = new FileReader (file);
BufferedReader dis = new BufferedReader(in);
fileBuffer = new StringBuffer() ;

while ((line = dis.readLine()) != null) {
fileBuffer.append(line + "\n");
}

in.close();
fileString = fileBuffer.toString();
}
catch(IOException e) {
return null;
}
return fileString;
}

public static boolean writeFile(File file, String dataString) {
try {
PrintWriter out =
new PrintWriter(new BufferedWriter (new FileWriter (file)));
out.print(dataString);
out.flush();
out.close();
}
catch (IOException e) {
return false;
}
return true;
}

public static void main(String [] args) {
String title = "Lotto";
Class1 f = new Class1 (title);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
}

Förstår inte riktigt vad jag ska skriva i model-klassen, samt i Control-klassen för att den t ex ska få textruta från View.