Explore a simple Java/C++ JNI project in NetBeans, create native methods, generate headers, build a shared library, and load it to run fast computations from Java.

Explore how JNI header files bridge Java and C++ to fast-track numeric computations. Learn header naming, environment pointers, and loading one dynamic library for multiple native methods.

Learn to configure eclipse with a C++ development tool, generate JNI header files, build a dynamic library, and load it in Java using an external tool and static initialization.

Demonstrates exporting a JNI-enabled Java project as a runnable jar and loading dynamic libraries by extracting them to a temp folder at runtime to resolve unsatisfied link errors.

Explore how the JNI overloads native methods by using unique parameter signatures and the Java naming convention with underscores. Overloading relies on differing parameter signatures, not on return types.

Learn to speed up JNI by caching class and field IDs in C++ using method caching (local static) or global caching, reducing repeated JVM lookups.

Cache field IDs globally in JNI to avoid repeated lookups, initialize them once via a static initialization method, and boost performance when processing many objects.

Use the Java native interface (JNI) to call a C++ library from Java by writing native functions and linking to the GSL library.

Explore how Java static final primitive constants become C++ preprocessor defines in JNI headers, enabling compile-time value replacement in native code and clarifying which types translate.

Explore how to instantiate static and non-static nested inner classes in JNI, including outer-class references, constructor signatures, class metadata, and creating and returning Java objects from C++.

Explore implementing native methods for Java inner and static nested classes in JNI, handling outer class references, class naming in C++, and method signature mappings.

Manage native resources with JNI by preventing memory leaks, using closable and automatic resource management, and implementing private native open and close methods instead of finalize.

Explore JNI by implementing a ConsoleOut class for standard output with native print methods and print line, wired to a C++ std::cout backend and a singleton console across the JVM.