code: public void get1Value(int index, float[] valueDestination) {
          try {
              SFVec2f sfVec2f = value.get(index);
              valueDestination[0] = sfVec2f.x;
              valueDestination[1] = sfVec2f.y;
          }
          catch (IndexOutOfBoundsException e) {
              Log.e(TAG, "X3D MFVec2f get1Value(index) out of bounds." + e);
          }
          catch (Exception e) {
              Log.e(TAG, "X3D MFVec2f get1Value(index) exception " + e);
          }
      }
docs: Get an individual value from the existing field array.
  @param index -
  @param valueDestination - where the SFVec2f value is returned