SimMetrics
· A Java library of similarity and distance metrics e.g. Levenshtein distance and Cosine similarity. All similarity metrics return normalized values rather than unbounded similarity scores. Distance metrics return non-negative unbounded scores.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window simmetrics-4.1.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.