Set up your environment for Java with Visual Studio with e.g. https://blog.usejournal.com/visual-studio-code-for-java-the-ultimate-guide-2019-8de7d2b59902
Java AWS SDK Guide https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/welcome.html
Maven Config https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/setup-project-maven.html
cd s3
Maven Assembly for jar with dependencies mvn assembly:assembly -DdescriptorId=jar-with-dependencies
Run jar java -jar target/
https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/credentials.html