Java Native Interface (JNI) in depth -- Part 2: A Simple Java/C++ Project in NetBeans IDE

In this java tutorial, I continue the discussion how to establish a JNI bridge between java and C/C++ so that we can perform mathematical operations in C/C++ and bring the results back into java environment. For more reading material, see: 1. https://en.wikipedia.org/wiki/Java_Native_Interface 2. https://www.gnu.org/software/gsl/