prereshable.java: //Anick /** * Produce class inherits from ProductType. * Produce can be marked down. When a regular priced product is * marked down it becomes sale. A sale item marked down becomes...

//Anick   /** * Produce class inherits from ProductType.   * Produce can be marked down. When a regular priced product is * marked down it becomes sale. A sale item marked down becomes clearance and is  * also moved to the clearance rack. In other words, a product moves down one level for each  * markdown. A clearance item cannot be marked down any further. */  public class Perishable extends ProductType { boolean clearanceBin;  public void setClearanceBin(boolean moveToBin) { this.clearanceBin = moveToBin; }  public boolean getClearanceBin() {  return this.clearanceBin;  }    public static void main(String[] args) { // add testing code here  }  }

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Product.java:

//Anick  /** * Defines product by bar code, item name, and product type */ public class Product {  private String code; // bar code private String item; // name of the item private ProductType type; // produce or canned  /**  * 3-arg constructor  */ public Product(String c, String i, ProductType t) { this.code = c; this.item = i; this.type = t; }  // mutator method public void setType(ProductType t) { this.type = t; }  // accessor methods public String getCode() { return this.code; }  public String getItem() { return this.item; }  public ProductType getProductType() { return this.type; }   public static void main(String[] args) { // Some testing code to get you started Perishable per= new Perishable("Sale", false); Product oranges = new Product("2534648878", "Oranges", per); System.out.println(oranges); System.out.println(oranges.getProductType().markDown()); System.out.println(oranges);  } }

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ProductType.java

/** Abstract superclass that represents the product type of a product.   *  Has one abstract method - markDown - which must be overridden in subclasses.  *  Defines the pricing instance variable for all products  */  //LEAVE THIS FILE UNCHANGED - do not submit  public abstract class ProductType { private String pricing;  public ProductType(String p){ this.pricing = p; }  public String getPricing() { return pricing; }  public void setPricing(String p) { this.pricing = p; }  public String toString() { return "Product Pricing: " + this.pricing; }  /** ABSTRACT must be overridden in concrete subclasses  * Returns a boolean indicating if the product is on sale   */ public abstract boolean markDown(); }

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ShelfStable.java

//Anick   /** * ShelfStable class inherits from ProductType.   * Products that are ShelfStable cannot go on sale, nor go on clearance. * Their pricing is always regular. * ShelfStable items can be put on display at the end of an aisle. */  public class ShelfStable extends ProductType { private boolean endDisplay;  public boolean isEndDisplay() { return endDisplay; }   public void setEndDisplay(boolean e) { this.endDisplay = e; }   /** A shelf stable product cannot be marked down  */ public boolean markDown() { return false; }   public static void main(String[] args) { // add testing code here  } }

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Store.java

//Anick  import java.util.ArrayList;  /** * This class maintains a 'database' of faculty members in an ArrayList instance * variable for a department in a college. It provides functionality for finding * a faculty member in the department by id, adding new faculty, removing faculty, * and creating lists of faculty by type (tenure-track: all, with tenure, without * tenure, instructor: all, union members, non-union). */  public class Store { private String name; private ArrayList products; // products sold at the store  public Store(String n) { this.name = n; this.products = new ArrayList(); }  // accessor method for name instance variable public String getName(){ return this.name; }  /** accessor method for products instance variable that      returns the list of products sold as an array (for use in GUI interface) */ public Product[] getProducts(){ return this.products.toArray(new Product[this.products.size()]); }  /** Returns a string description of each product sold at the store,  *  including their bar code, name, and clearanceBin or endDisplay status, depending on  *  product type */ public String toString() { String result = ""; for (Product prod : this.products) result += prod + "\n"; // one line per product return result; }   public static void main(String[] args) { // some code to get you started Store store = new Store("Mr. Hooper's");  store.add(new Product("0123456789", "Spagetti", new ShelfStable(true))); store.add(new Product("9876543210", "Milk", new Perishable("Regular", false)));  System.out.println(store);  } }