import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.Platform;
 
public class Hello {
    public interface CLibrary extends Library {
        CLibrary INSTANCE = (CLibrary) Native.loadLibrary(Platform.isWindows() ? "msvcrt" : "c", CLibrary.class);
        void printf(String format, Object... args);
    }
 
    public static void main(String[] args) {
        CLibrary c = CLibrary.INSTANCE;
        c.printf("Hello, JNA World!n");
    }
}