Question

I have a class Products, which has the attributes name, description and price.

I intend to populate products in the application scope of my project. How do I go about achieving that?

Secondly, upon populating the products, I want to be able to display each product in a table in a JSP page. Each product will have its own table, listing its name,description and price and an add to cart button

Answer 1

I intend to populate products in the application scope of my project. How do I go about achieving that?

So you want to populate it once during webapp’s lifetime? Use a ServletContextListener.

@WebListener
public class StartupListener implements ServletContextListener {

    @Override 
    public void contextInitialized(ServletContextEvent event) {
        List<Product> products = loadItSomehow();
        event.getServletContext().setAttribute("products", products);
    }

    // ...
}

This way the products will be available in every servlet by

List<Product> products = (List<Product>) getServletContext().getAttribute("products");

and in every JSP by

${products}

---

Secondly, upon populating the products, I want to be able to display each product in a table in a JSP page. Each product will have its own table, listing its name,description and price and an add to cart button

So you want to categorize the products? Have a List<Category> then where Category class has a List<Product>, or use a Map<String, List<Product>> where the key is the category name.

As to how to display it, that’s already been answered in your other question.