public native int JDFPGetFeature (

      int [ ] img ,             // fingerprint image

      int [ ] FeatureArray // minutiae

  ) ;

      public native int JDFPMatchFingerEx (

      int [ ] FeatureAttay1 ,   // base feature points

      int [ ] FeatureArray2 ,  // reference feature points

      int Level                       // matching level

  ) ;

Listing 1: JNI methods for fingerprint identification