private void uploadFile() {
            FTPClient client = new FTPClient();
            FileInputStream fis = null;
            try {
                client.connect("ftp.site.com");
                client.login("username", "password");
                // Create an InputStream of the file to be uploaded
                String filename = "test.txt";
                fis = new FileInputStream(filename);
                // Store file on server and logout
                client.storeFile(filename, fis);
                client.logout();
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                try {
                    if (fis != null) {
                        fis.close();
                    }
                    client.disconnect();
                } catch (IOException e) {
                   e.printStackTrace();
                }

            }
        }