Make sure that the native library file is accessible to the Java runtime by either placing it in the same directory or specifying its path using the java. Compile and run the Java program: Compile the Java code using the javac command, and then run it using the java command. The LibraryLoader class is part of the package.Ĥ. This ensures that the library is available when the native method is called. Load the native library: To load the native library at runtime, we use the LibraryLoader.load() method. The annotation specifies the library name, function name, and C function signature.ģ. In the example above, we define a native method called calculateSquareRoot that takes a double value as a parameter and returns a double.
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