Questo è il codice della copia un pò modificato per il salvataggio, ti scrivo anche quello funzionante per la copia?
codice:
//funzione salva file
public static void saveFile() {
JFileChooser chooser = new JFileChooser();
File modello = new File("modello_programma.rtf");
chooser.setFileFilter(new javax.swing.filechooser.FileFilter() {
public boolean accept(File f) {
return f.getName().toLowerCase().endsWith(".rtf")
|| f.isDirectory();
}
public String getDescription() {
return "Documento *.RTF";
}
});
int s = chooser.showSaveDialog(new JFrame());
if (s == JFileChooser.APPROVE_OPTION) {
try {
save(modello);
} catch (IOException e) {
System.err.println(e.getMessage());
}
System.out.println(modello);
}
}
//salvataggio a livello fisico
public static void save(File modello)
throws IOException {
File fromFile = modello;
File toFile = new File("modello_programma.rtf");
if (toFile.isDirectory())
toFile = new File(toFile, fromFile.getName());
if (toFile.exists()) {
if (!toFile.canWrite())
throw new IOException("FileCopy: "
+ "destination file is unwriteable: " + modello);
System.out.print("Overwrite existing file " + toFile.getName()
+ "? (Y/N): ");
System.out.flush();
BufferedReader in = new BufferedReader(new InputStreamReader(
System.in));
String response = in.readLine();
if (!response.equals("Y") && !response.equals("y"))
throw new IOException("FileCopy: "
+ "existing file was not overwritten.");
} else {
String parent = toFile.getParent();
if (parent == null)
parent = System.getProperty("user.dir");
File dir = new File(parent);
if (!dir.exists())
throw new IOException("FileCopy: "
+ "destination directory doesn't exist: " + parent);
if (dir.isFile())
throw new IOException("FileCopy: "
+ "destination is not a directory: " + parent);
if (!dir.canWrite())
throw new IOException("FileCopy: "
+ "destination directory is unwriteable: " + parent);
}
FileInputStream from = null;
FileOutputStream to = null;
try {
from = new FileInputStream(fromFile);
to = new FileOutputStream(toFile);
byte[] buffer = new byte[4096];
int bytesRead;
while ((bytesRead = from.read(buffer)) != -1)
to.write(buffer, 0, bytesRead); // write
} finally {
if (from != null)
try {
from.close();
} catch (IOException e) {
;
}
if (to != null)
try {
to.close();
} catch (IOException e) {
;
}
}
}
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