PostViewHolder.java

public class PostViewHolder extends RecyclerView.ViewHolder {

    private TextView authorView;
    private TextView messageView;

    public PostViewHolder(@NonNull View itemView) {
        super(itemView);
        authorView = itemView.findViewById(R.id.post_AuthorName);
        messageView = itemView.findViewById(R.id.post_Message);
    }

    public void bind(Post post) {
        authorView.setText(post.authorName);
        messageView.setText(post.message);
    }
}

PostViewHolder.kt

class PostViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {

    private var authorView: TextView = itemView.findViewById(R.id.post_AuthorName)
    private var messageView: TextView = itemView.findViewById(R.id.post_Message)

    fun bind(post: Post) {
        authorView.text = post.authorName
        messageView.text = post.message
    }
}