package javafuture; import javafx.scene.Parent; public class Example { public static void main(String[] args) { Buyer b = new Buyer(); b.buy(new TV()); b.buy(new Computer()); b.buy(new Audio()); System.out.println(b.bonusPoint); System.out.println(b.money); b.summary(); } } class Product { int price; int bonusPoint; Product(int price) { this.price = price; bonusPoint = (int) (price / 10); } Prod..

Review CSS SelectorsThroughout this lesson, you learned how to select HTML elements with CSS and apply styles to them. Let's review what you learned:CSS can change the look of HTML elements. In order to do this, CSS must select HTML elements, then apply styles to them.CSS can select HTML elements by tag, class, or ID.Multiple CSS classes can be applied to one HTML element.Classes can be reusable..