FTPClient ftpClient = new FTPClient(); ftpClient.setRemoteHost("ftp.example.com"); ftpClient.setRemotePort(21); ftpClient.connect(); File file = new File("path/to/local/file.txt"); InputStream inputStream = new FileInputStream(file); ftpClient.upload(inputStream, "/path/on/ftp/server/file.txt"); File file = new File("path/to/local/file.txt"); OutputStream outputStream = new FileOutputStream(file); ftpClient.download("/path/on/ftp/server/file.txt", outputStream); ftpClient.deleteFile("/path/on/ftp/server/file.txt"); ftpClient.disconnect();