code: public static <T> boolean containsAny(Collection<T> collection, Collection<T> toCheck){
      for(T c: toCheck){
        if(collection.contains(c))
          return true;
      }
      return false;
      
    }
docs: if any item in toCheck is present in collection
  @param <T>
  @param collection
  @param toCheck
  @return