* Inventory Program - Parts 1
*/

package productjava;

/** Inventory Program 1-3
* IT 215
* @author Tammy
* June 21, 2008
*/
public class Product {
    // Private variables
    private String name;
    private int quantity;
    private double price;
    private int productid = 0;
    
    // Set the default state of the object
    public Product() {
        this(0, "Unknown",0,0.00);
    }
  
    // User can specify name, quantity, and price for items
    public Product (int productId, String itemname, int quantityOnHand, double itemprice) {
        productid = productId;
        setName (itemname);
        setQuantityOnHand(quantityOnHand);
        setPrice (itemprice);
    }
    // Change state of object
    public void setName(String itemname) {
        name = itemname;
        
    }
    // Set quantity on hand and default to zero, if negative
    public void setQuantityOnHand(int quantityOnHand) {
        if (quantityOnHand > 0) {
            quantity = quantityOnHand;
        }
        else {quantity = 0;}
    }
    
    // Set product price and default to zero, if negative
    public void setPrice (double itemPrice) {
        if (itemPrice > 0.00) {
            price = itemPrice;
        }
        else {price = 0.00;}
    }
    
    public String getName() {
        return name;
    }
    
    public int getQuantityOnHand() {
        return quantity;
    }
    
    public double getPrice() {
        return price;
    }
    
    // Calculate value of stock on this item
    public double getItemValue() {
        return (price * (double)quantity);
    }
    
    // String that represents product
    @Override
    public String toString() {
        return name + " - " + price;
    }
    
        }
    

* Inventory Program Part 2
*/

package productjava;

/** Inventory Program Part 1-3
* IT 21
* @author Tammy
* June 21, 2008
*/

import java.text.DecimalFormat;

public class Inventory {
    // Set up an array of Products to hold 30 items
    int inventorySize = 30;
    private Product items[] = new Product[inventorySize];
    
    // Set up to format values into currency
    DecimalFormat formatter = new DecimalFormat ("$##,###.00");
    
    // Adds a product to first empty slot in array
    public void addProduct(Product item) {
        for (int i = 0; i < inventorySize; i++) {
            if (items[i] == null) {
                items[i] = item;
                return;
            }
        }
    }
    
    // Add up total value of products
    // Add quantity on hand, item by item; and multiply it by its price
    // Add the value to a running total variable
    public double getTotalInvValue() {
        double sumOfInventory = 0.0;
        
        for (Product item : items) {
            if (item != null) {
                sumOfInventory += item.getItemValue();
            }
        }
        return sumOfInventory;
    }
    
    // Prints inventory list including name, quantity, price, and total stock value for each item
    public void printInventory() {
        System.out.println("Printing items in inventory...\n");
        
        boolean hasItems = false;
        
        for (Product item : items) {
            if (item != null) {
                hasItems = true;
                System.out.println(item.toString() + " Quantity: " + item.getQuantityOnHand() + "Value of Stock: " formatter.format(item.getItemValue()));
                
            }
        }
        // Print message if no items are found
        if (!hasItems) {
            System.out.println("Inventory is currently empty.\n");
            }
        }
}

/* Inventory Program Part 3
* Inherited class from class Product
* Extra feature of year movie was made
*/

package productjava;

/** Inventory Program Part 1-3
* IT 215
* @author Tammy
* June 21, 2008
*/

public class DVD extends Product {
    // Hold year movie was made
    private int movieyear;
    
    
    public DVD(int productId, String itemname, int quantityOnHand, double itemprice, int year) {
        super(productId, itemname, quantityOnHand, itemprice);
        movieyear = year;
    }
    
    public void setYear (int year) {
        movieyear = year;
    }
    
    public int getYear() {
        return movieyear;
    }
    
    //Override getItemValue() in Product class; calls base class version and adds a 5% restocking fee
    @Override
    public double getItemValue() {
        return super.getItemValue() * 1.05;
        
    }
    
    public double getRestockingFee () {
        return super.getItemValue() * .05;
        
    }

}

(item.getItemValue()));

System.out.println(item.toString() + " Quantity: " + item.getQuantityOnHand() + "Value of Stock: " + formatter.format(item.getItemValue()));