int lenghtBytes = 1024 * 1024;
File outFile = this.file.getDossier ();
out = new FileOutputStream (outFile);
this.panel.jProgressBarTransfert.setMaximum (100);
byte [] buffer = new byte [lenghtBytes];
int l;
long bitTransfered = 0;

while ((l = in.read (buffer, 0, buffer.length))! = -1) {
out.write (buffer, 0, l); // We write on the disc.
bitTransfered + = l; // Update the number of bits transferred.
this.update (bitTransfered, httpResponse.getEntity (). getContentLength ());
}
in.close ();