code: public static Object get(Object o, int index) throws ArrayUtilException {
  	o = get(o, index, null);
  	if (o != null) return o;
  	throw new ArrayUtilException("Object is not a array, or index is invalid");
      }
docs: gets a value of a array at defined index
  
  @param o
  @param index
  @return value at index position
  @throws ArrayUtilException