awsdocs/aws-doc-sdk-examples ? reverse-engineered prompt

Build me a clean set of AWS SDK example code in Java that shows the most common things someone would want to do with AWS, like connecting with credentials, listing resources, reading data, creating something small, and cleaning it up again safely.

Keep it simple and well commented, with a short README that explains what it does, what AWS account setup is needed, and how to run it. I want it to feel like a real example from AWS docs, so make the code easy to copy and reuse, and include clear notes about any costs or resources it creates. If there are better current patterns in the latest AWS docs, look those up online and use them.

Please organize it in the same style as the other examples in this repo, and make sure it is something a beginner could follow without much trouble.