// This file contains excerpts from the textbook Concrete // Abstractions: An Introduction to Computer Science Using Scheme, by // Max Hailperin, Barbara Kaiser, and Karl Knight, Copyright (c) 1998 // by the authors. Full text is available for free at // http://www.gustavus.edu/+max/concrete-abstractions.html public class Item { private int price; public Item(int initialPrice){ price = initialPrice; } public int price(){ return price; } public void display(){ CompuDuds.displayPrice(price); } public void inputSpecifics(){ } public void reviseSpecifics(){ inputSpecifics(); } }