Help me with this code...! Thank�s

Question

Hello, i made this code to explore the machine and copy the file from one place to another! Ok.. it works.. but whem i compile the code.. 3 FileCopy.classes are generated... in fact, are four.. one named FileCopy.class, other named FileCopy$1.class, other FileCopy$2.class, other FileCopy$3.class..
i�m not sure but, if i compile this code,, only one FileCopy.class could be generated.. i�m right? if i�m not, i will be happy if somebody tells me what is happen with my code! if it�s wrong or something like that...!
Thank�s.
Here is the code!
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
import java.applet.*;
public class FileCopy extends Applet
implements ActionListener{
//declara��o das vari�veis e seus respectivos tipos
private JTextField enter;
private JTextArea t1;
private Button btnCopia;
private JTextField origem;
private JTextField destino;
private String origemArq;
private String destinoArq;
public FileCopy(){
     setLayout(new BorderLayout(5, 5));
enter = new JTextField (
"Procurar em...");
enter.addActionListener(this);
origem = new JTextField("Origem do Arquivo");
origem.addActionListener(new ActionListener() {
public void actionPerformed (ActionEvent e)
destino = new JTextField("Destino do arquivo");
destino.addActionListener(new ActionListener() {
     public void actionPerformed (ActionEvent e)
btnCopia = new Button("Copiar");
btnCopia.addActionListener(new ActionListener () {
     public void actionPerformed (ActionEvent e) {
          try{
               origemArq = origem.getText();
               destinoArq = destino.getText();
               File inputFile = new File(origemArq);
File outputFile = new File(destinoArq);
     FileInputStream in = new FileInputStream(inputFile);
     FileOutputStream out = new FileOutputStream(outputFile);
     int c;     
     while ((c = in.read()) != -1)
out.write(c);
in.close();
out.close();
     catch (IOException e2)
JOptionPane.showMessageDialog(null, "File Error", "File Error", JOptionPane.ERROR_MESSAGE);
t1 = new JTextArea(10, 15);
t1.setEditable(false);
Box b = Box.createHorizontalBox();
b.add(new JScrollPane(t1));
Box b1 = Box.createHorizontalBox();
b1.add(enter);
b1.add(origem);
b1.add(destino);
add(b, BorderLayout.CENTER);
add(b1, BorderLayout.NORTH);
add(btnCopia, BorderLayout.SOUTH);
public void actionPerformed (ActionEvent e)
String actionCommand = e.getActionCommand();
if("Copiar".equals(actionCommand))
t1.setText(enter.getText());
File name = new File (e.getActionCommand());
if (name.exists()) {
t1.setText(
name.getName() + " existe\n" +
(name.isFile() ? " i um arquivo\n" : " nbo i um arquivo\n" ) +
(name.isDirectory() ? " i um diretsrio\n" : " nbo i um diretsrio\n" ) +
(name.isAbsolute() ? " i um caminho absoluto\n" : " nco i um caminho absoluto\n" ) +
"ultima modificagco: " + name.lastModified() + "\nTamanho: " + name.length() +
"\ncaminho: " + name.getPath() + "\nCaminho Absoluto: " + name.getAbsolutePath() +
"\nPai: " + name.getParent());
if ( name.isFile()) {
try {
RandomAccessFile r = new RandomAccessFile(name, "r");
StringBuffer buf = new StringBuffer();
String text;
t1.append("\n\n");
while (( text = r.readLine()) != null)
buf.append (text + "\n");
t1.append (buf.toString());
catch (IOException e2)
JOptionPane.showMessageDialog(this, "File Error", "File Error", JOptionPane.ERROR_MESSAGE);
else if (name.isDirectory()) {
String directory [] = name.list();
t1.append("\n\nDirectory contents: \n");
for (int i = 0 ; i<directory.length; i++)
t1.append(directory[i] + "\n");
else {
JOptionPane.showMessageDialog(this, e.getActionCommand() + "n�o existe", "File Error", JOptionPane.ERROR_MESSAGE);

Answer 1

Hey
There is no problem with your code.
The three files are created by the compiler because you have 3 anonymous classes within in your code.
E.g.
new ActionListener () { .....}
So when using anonymous classes these additional files are required for your app.
Hope thats ok!!