I will conclude by saying that you should avoid JNI as much as possible (yes you read right, AVOID it). Let your Java code be pure Java. A JNI call made to a native programming language is very slow. JNI is also not compatible with Java applets. Don't use JNI just for the heck of it; use it when it's really required, maybe to perform some extremely low level hardware programming where speed can make or break your application.
I really hope you learnt a thing or two about JNI from this article. Stay tuned for part 2 of this article in which we will further explore some advanced aspects of JNI.
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