The latest version of WebGoat needs Java 11. By default WebGoat starts on port 8080 with --server.port you can specify a different port. With server.address you can bind it to a different address (default localhost).
WebWolf runs as a separate web application and is started automatically when using the Docker image. If you are not using the Docker image you will need to download the latest WebWolf release from https://github.com/WebGoat/WebGoat/releases and start it:
By default WebWolf starts on port 9090 with --server.port you can specify a different port. With server.address you can bind it to a different address (default localhost).