[JAVA] Esercizio

[BlueJ]

Ciao a tutti!!!

Dovrei adattare il seguente codice(creato con Net Beans) per eseguirlo con BluJ,sapete come fare?
Inoltre dovrei avere una classe principale e poi le altre classi separatamente seguendo il cosidetto principio "oggetto a compito singolo"...<RIUSABILITA'>...
Grazie

Ecco il codice:

import java.awt.BorderLayout;

import javax.swing.JFrame;
import javax.swing.JTextField;
import java.awt.*;
import javax.swing.JButton;
import javax.swing.JTextArea;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/**
*

Title: </p>
*
*

Description: </p>
*
*

Copyright: Copyright (c) 2004</p>
*
*

Company: </p>
*
* @author not attributable
* @version 1.0
*/
public class Test extends JFrame {
private int[] number = new int[3];
private int count;
JTextField jTextField1 = new JTextField();
JButton jButton1 = new JButton();
JTextArea jTextArea1 = new JTextArea();
JButton jButton2 = new JButton();

public Test() {
try {
jbInit();
} catch (Exception exception) {
exception.printStackTrace();
}
this.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
this.setSize(new Dimension( 450, 250 ));
this.show();
}

private void jbInit() throws Exception {
getContentPane().setLayout(null);
jTextField1.setText("");
jTextField1.setBounds(new Rectangle(8, 32, 122, 20));
jButton2.setBounds(new Rectangle(37, 190, 139, 23));
jButton2.setText("Cancella tutto");
jButton2.addActionListener(new Test_jButton2_actionAdapter(this));
this.getContentPane().add(jTextField1, null);
jTextArea1.setText("");
jTextArea1.setBounds(new Rectangle(13, 68, 268, 88));
this.getContentPane().add(jButton1);
this.getContentPane().add(jTextArea1);
this.getContentPane().add(jButton2);
jButton1.setBounds(new Rectangle(207, 32, 71, 23));
jButton1.setText("salva");
jButton1.addActionListener(new Test_jButton1_actionAdapter(this));
}

public void jButton1_actionPerformed(ActionEvent e) {

if( this.number == null ){

this.number = new int[3];
}
if( count < 3 ){
this.number[count] = Integer.parseInt(jTextField1.getText());
StringBuffer sb = new StringBuffer( jTextArea1.getText() );
sb.append( "\n" );
sb.append( String.valueOf( this.number[count] ) );
jTextArea1.setText( sb.toString() );
jTextField1.setText( "" );
count++;
System.out.println( count );
}else{

jTextArea1.setText( "Array ha un massimo di 3 elementi" );
}
}

public void jButton2_actionPerformed(ActionEvent e) {

jTextArea1.setText( "" );
this.number = null;
count = 0;
}

public static void main( String[] args ){

new Test();
}
}


class Test_jButton2_actionAdapter implements ActionListener {
private Test adaptee;
Test_jButton2_actionAdapter(Test adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jButton2_actionPerformed(e);
}
}


class Test_jButton1_actionAdapter implements ActionListener {
private Test adaptee;
Test_jButton1_actionAdapter(Test adaptee) {
this.adaptee = adaptee;
}

public void actionPerformed(ActionEvent e) {
adaptee.jButton1_actionPerformed(e);
}
}