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Tester that needs to be changed

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public class InventoryTracker {

public static void main(String[] args) {

//create 7 new books/games

InventoryItem[] inventory = new InventoryItem[7];

inventory[0] = new ComicBook(2, 100., "Superman", 2);

inventory[1] = new BoardGame(3, 39.95, "AwfulGreenThings from Outer Space");

inventory[2] = new BoardGame(10, 29.95, "Monopoly");

inventory[3] = new ComicBook(10, 9.95, "Buffy the Vampire Slayer", 12);

inventory[4] = new ComicBook(12, 8.95, "X-men", 119);

inventory[5] = new BoardGame(9, 59.99, "Scrabble");

inventory[6] = new ComicBook(8, 21.98, "The Amazing Spiderman: Original Series,", 20);

for(int i = 0; i<inventory.length; i++) {

System.out.println(inventory[i]);

}

//calculations

InventoryItem maxvalue = inventory[0];

InventoryItem minvalue = inventory[0];

int inventoryQty = 0;

double inventoryValue = 0;

for(int i=0; i<inventory.length; i++)

{

inventoryQty += inventory[i].getQuantity();

double currentValue = inventory[i].getQuantity() * inventory[i].getRetailPrice();

if(currentValue < minvalue.getQuantity() * minvalue.getRetailPrice())

minvalue = inventory[i];

if(currentValue > maxvalue.getQuantity() * maxvalue.getRetailPrice())

maxvalue = inventory[i];

inventoryValue += currentValue;

}

//print results

System.out.println(" Total Inventory Quantity (num items):" + inventoryQty);

System.out.println("Total Inventory Value:" + inventoryValue);

System.out.println("Inventory Item with Max Value of " + (maxvalue.getQuantity() *maxvalue.getRetailPrice()) + " is: " + maxvalue);

System.out.println("Inventory Item with Min Value of " + (minvalue.getQuantity() *minvalue.getRetailPrice()) + " is: " + minvalue);

}

}

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Explanation / Answer

import java.util.Scanner; public class InventoryTracker { public static void main(String[] args) { // prompting user for array size Scanner keyboard = new Scanner(System.in); System.out.print( "How large do you want the array? " ); int[] inventory = new int[keyboard.nextInt()]; //prompting user for input for( int i=0 ; i maxvalue.getQuantity() * maxvalue.getRetailPrice()) maxvalue = inventory[i]; inventoryValue += currentValue; } //print results System.out.println(" Total Inventory Quantity (num items):" + inventoryQty); System.out.println("Total Inventory Value:" + inventoryValue); System.out.println("Inventory Item with Max Value of " + (maxvalue.getQuantity() *maxvalue.getRetailPrice()) + " is: " + maxvalue); System.out.println("Inventory Item with Min Value of " + (minvalue.getQuantity() *minvalue.getRetailPrice()) + " is: " + minvalue); } }

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