Getgradient() showing error how to pass its variables in categoryhelperclass

public class CategoryAdapter extends RecyclerView.Adapter<categoryadapter.featuredaviewholder> {

    ArrayList<categoryhelperclass> featureLocations;

    public CategoryAdapter(ArrayList<categoryhelperclass> featureLocations) {
        this.featureLocations = featureLocations;
    }

    @NonNull
    @Override
    public FeaturedAViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.categories_card_design,parent,false);
        FeaturedAViewHolder featuredAViewHolder=new FeaturedAViewHolder(view);
        return featuredAViewHolder;
    }

    @Override
    public void onBindViewHolder(@NonNull FeaturedAViewHolder holder, int position) {
        CategoryHelperClass categoryHelperClass=featureLocations.get(position);
        holder.image.setImageResource(categoryHelperClass.getImage());
        holder.title.setText(categoryHelperClass.getTitle());
        holder.relativeLayout.setBackground(CategoryHelperClass.getGradient());
    }

    @Override
    public int getItemCount() {
        return featureLocations.size();
    }

    public static class FeaturedAViewHolder extends RecyclerView.ViewHolder{
        ImageView image;
        TextView title,relativeLayout;

        public FeaturedAViewHolder(@NonNull View itemView) {
            super(itemView);

            //Hooks
            image=itemView.findViewById(R.id.category_image);
            title=itemView.findViewById(R.id.category_text);
            relativeLayout = itemView.findViewById(R.id.background_gradient);
        }
    }
}

public class CategoryHelperClass{
 int image;
         String title,descriptions;

public CategoryHelperClass(int image, String title, String descriptions) {
        this.image = image;
        this.title = title;
        this.descriptions = descriptions;
        }

public int getImage() {
        return image;
        }

public String getTitle() {
        return title;
        }

public String getDescriptions() {
        return descriptions;
        }}