I want to learn Java Native Interface (JNI) ?

Question

Can someone provide me some free learning resources from the internet, or suggest me some books to learn JNI

Answer 1

https://www.baeldung.com/jni

https://medium.com/@bschlining/a-simple-java-native-interface-jni-example-in-java-and-scala-68fdafe76f5f

Answer 2

https://www.sololearn.com/Discuss/697748/?ref=app

Answer 3

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.uni-ulm.de/fileadmin/website_uni_ulm/iui.inst.200/files/staff/domaschka/misc/jni_programmers_guide_spec.pdf&ved=2ahUKEwj9jMKE0vL9AhWBVPUHHZM-C_gQFnoECBUQAQ&usg=AOvVaw06_5XzkAgQv9OwOWZqs4mb

This book contains every details about JNI. It's hard to read, but it contains everything. I have personally used it to port my android application with C++ code running in it