in the jfuzzylite zip file downloaded from fuzzylite.com/downloads/ you will find two jars, one containing the sources (
jfuzzylite-src.jar) and the other containing the compiled classes (
jfuzzylite.jar). You need to add the
jfuzzylite.jar to the libraries in your project.
If you utilize a POM project or want to utilize one, please revise the project located within