skeeto/sample-java-project ? reverse-engineered prompt

Build me a clean starter Java project like this one, using Ant as the main build tool. I want a simple sample app with a working build, test setup, and a few useful extras like code formatting, style checks, and dependency downloading so I can clone it and run the build right away without fiddling with paths.

Please keep it as a practical project template I can reuse for new apps, with the sample code easy to replace later. If it makes sense, include support for packaging a distributable build and a way to run and update the app while it’s running for quick development. Make sure the project is organized so it feels ready to use, but still like a starting point rather than a finished product. If you need current details for Ant or any supporting tools, look up the latest docs online.