I have to create two classes one class that accepts an object, stores the object in an array. I have another that has a constructor that creates an object.

Here is my first class named "ShoppingList":

import java.util.*; public class ShoppingList { private ShoppingItem [] list; private int amtItems = 0; public ShoppingList() { list=new ShoppingItem[8]; } public void add(ShoppingItem item) { if(amtItems<8) { list[amtItems] = ShoppingItem(item); amtItems++; } else System.out.println("Your item's have exceeded the amount of items that can fit in the bag."); } public void add(String item, int amt, double cost) { if(amtItems<8) { list[amtItems] = new ShoppingItem(item, amt, cost); amtItems++; } else System.out.println("Your item's have exceeded the amount of items that can fit in the bag."); } public double getTotalCost() { double totalCost = 0; for(int i = 0; i totalCost+=list[i].getCost(); return totalCost; } public String toString() { for(int i = 0;i { if(i==0) System.out.println("This shopping list has " + amtItems + " shopping items: " + list[i].toString()); else System.out.println(", " + list[i].toString); } return""; } }

Here is my second class called "ShoppingItem":

public class ShoppingItem { private String itemName; private int amount; private double pricePU; public ShoppingItem(String x, int y, double z) { this.itemName = x; this.amount=y; this.pricePU=z; } public double getCost() { return this.amount*this.pricePU; } public void setQuantity(int x) { this.amount=x; } public String toString() { return (this.amount + " " + this.itemName); } }

The teacher created a test program to test our algorithms, the constructors in ShoppingItem seem to work. I bolded the area's in ShoppingList that seem to be disagreeing. The second add function was me playing around with different ideas. Her exact line is "g.add( new ShoppingItem("Tissues", 4, 2.30));". So since this part works "ShoppingItem go = new ShoppingItem("Milk", 2, 3.75);" I think my costructor is fine in ShoppingItem. I think my problem is I don't know how to accept an object in my shopping list constructor and save it to my array of objects.

Oh, my .toString function in ShoppingList also has a compiler error if you get a chance to look at it, but I figure I can probably figure that one out.

Here is the teacher's client:

/* Use this client program to test your class implementations * */ import java.util.*; public class ShoppingListClient { public static final int N = 1; public static final double DISCOUNT = 0.1; public static void main (String [] args) { System.out.println("Creating ShoppingList"); ShoppingList g = new ShoppingList(); System.out.println("Creating new ShoppingItem"); ShoppingItem go = new ShoppingItem("Milk", 2, 3.75); System.out.println("Changing the quantity to 3"); go.setQuantity( 3 ); System.out.println("The total cost should be 11.25. It is actually: " + go.getCost() ); System.out.println("Adding ShoppingItems to ShoppingList"); g.add( go ); g.add( new ShoppingItem("Tissues", 4, 2.30)); g.add (new ShoppingItem ("Toothpaste", 1, 4)); g.add (new ShoppingItem ("Eggs", 12, 0.50)); g.add (new ShoppingItem ("Apples", 5, 2.99)); g.add (new ShoppingItem ("Bananas", 4, 0.99)); System.out.println (g.toString()); System.out.println("The total cost of shopping list should be 49.36. It is actually: " + g.getTotalCost() ); Scanner input = new Scanner (System.in); System.out.print ("Enter the customer name: "); String name = input.next(); for (int i=0; i

} } }