/* returns Dropbox size in GB */
 public long getDropboxSize() throws DbxException {
   long dropboxSize = 0;
   DbxAccountInfo dbxAccountInfo = dbxClient.getAccountInfo();
   // in GB :)
   dropboxSize = dbxAccountInfo.quota.total / 1024 / 1024 / 1024;
   return dropboxSize;
 }
 String getAccount() {
   try {
     account = "Linked account: " + client.getAccountInfo().displayName;
   } catch (DbxException ex) {
     Logger.getLogger(ReadFileFromFolder.class.getName()).log(Level.SEVERE, null, ex);
   }
   return account;
 }