pi-core
· A library that allows for easy integration with IBM Presence Insights service available on Bluemix. This module provides an easy to use API Adapter and device registration.
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 pi-core-1.0.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.