FTPClient ftpClient = new FTPClient(); ftpClient.connect(hostname, port); ftpClient.login(username, password); ftpClient.changeWorkingDirectory(remoteDirectory); ftpClient.enterLocalPassiveMode(); ftpClient.setFileType(FTP.BINARY_FILE_TYPE); File localFile = new File(localFilePath); InputStream inputStream = new FileInputStream(localFile); boolean uploaded = ftpClient.storeFile(remoteFileName, inputStream); inputStream.close(); ftpClient.disconnect(); FTPClient ftpClient = new FTPClient(); ftpClient.connect(hostname, port); ftpClient.login(username, password); ftpClient.changeWorkingDirectory(remoteDirectory); ftpClient.enterLocalPassiveMode(); ftpClient.setFileType(FTP.BINARY_FILE_TYPE); File localFile = new File(localFilePath); OutputStream outputStream = new BufferedOutputStream(new FileOutputStream(localFile)); boolean downloaded = ftpClient.retrieveFile(remoteFileName, outputStream); outputStream.close(); ftpClient.disconnect(); FTPClient ftpClient = new FTPClient(); ftpClient.connect(hostname, port); ftpClient.login(username, password); boolean created = ftpClient.makeDirectory(directoryName); ftpClient.disconnect();