private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
init();
}

private void doSave() {
try {
info.setAlbum(album.getText());
info.setArtist(artist.getText());
info.setComment(comment.getText());
info.setR1((byte) 0);
try {
info.setR2(Byte.parseByte(r2.getText()));
info.setR3(Byte.parseByte(r3.getText()));
} catch (Exception exe) {
exe.printStackTrace();
}
info.setYear(year.getText());
info.setSongName(title.getText());
RandomAccessFile raf = new RandomAccessFile(file, "rw");
//如果这个文件原来就是合法的,那么就不用新起128个字节了
if (valid) {
raf.seek(raf.length() - 128);
} else {//否则就在末层加上128个字节
raf.seek(raf.length());
}
raf.write(info.getBytes());
raf.close();
this.dispose();
} catch (Exception ex) {
Logger.getLogger(SongInfoDialog.class.getName()).log(Level.SEVERE, null, ex);
}
}

(编辑:aniston)