Java/W9/model/ArticleRespository.java

package com.example.datacollect.model;
import java.util.List;
import java.util.ArrayList;
public class ArticleRespository implements DataService{
    private final List<Article> articles = new ArrayList<>();
    @Override
    public void saveArticle(Article article) {
        articles.add(article);
    }
    @Override
    public List<Article> getAllArticles() {
        return articles;
    }
    @Override
    public void clear(){
        articles.clear();
    }
    @Override
    public void removeArticle(int index){
        if (index >= 0 && index < articles.size()) {
            articles.remove(index);
        }
    }
}