args4j

As a software review, I can confidently say that args4j is an excellent Java class library that simplifies the task of parsing command line arguments within your console application. It is an open source, free-to-use tool that boasts of a small size, yet promises outstanding results.

What's even more impressive is that you do not need to build command line parsers from scratch anymore because, with args4j, the process is significantly simplified. This tool takes care of all the details, allowing users to focus on the big picture.

In addition, args4j boasts a clean and easy-to-use interface that integrates seamlessly into your existing Java application. The library's syntax is intuitive, and the documentation is clear and concise, making it easy for developers to get started and troubleshoot issues quickly.

Overall, if you're looking for a library that can streamline the process of parsing command-line options and arguments in your CUI application, then args4j comes highly recommended. With its small size, user-friendly interface, and open-source nature, it is the perfect tool to meet your needs.