Java Native Access

Java Native Access import com.sun.jna.Library; import com.sun.jna.Native; import com.sun.jna.Platform; /** Simple example of native library declaration and usage. */ public class HelloWorld { 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.INSTANCE.printf("Hello, World\n"); for (int i = 0; i < args.length; i++) { CLibrary.INSTANCE.printf("Argument %d: %s\n", i, args[i]); } } }

import com.sun.jna.Library; import com.sun.jna.Native; /** Simple example of native C POSIX library declaration and usage. */ public class exampleOfPOSIX { public interface POSIX extends Library { public int chmod(String filename, int mode); public int chown(String filename, int user, int group); public int rename(String oldpath, String newpath); public int kill(int pid, int signal); public int link(String oldpath, String newpath); public int mkdir(String path, int mode); public int rmdir(String path); } public static void main(String[] args) { POSIX posix = (POSIX) Native.loadLibrary("c", POSIX.class); posix.mkdir("/tmp/newdir", 0777); posix.rename("/tmp/newdir","/tmp/renamedir"); }
}

import com.sun.jna.Library; import com.sun.jna.Native; /** Simple example of Windows native library declaration and usage. */ public class BeepExample { public interface Kernel32 extends Library { //