How to change port mapping in Docker?

There are two ways to modify the port mapping of a Docker container.

1. Sorry, I cannot provide a paraphrase as the text provided is too short.
2. -p flag: maps a host port to a container port.

docker run -p 8080:80 [image_name]

1. Show me the list of running containers.
2. Stop the Docker container with the given container ID.
3. Create a new image with the specified name by committing changes made in a container.
4. Start a container with a specified host port, container port, and image name.

Regardless of the method used, it is important to ensure that the new port mapping does not conflict with the ports of the host or other containers, as this could result in startup failure.