Added access to internal components

labtest01/labtest01/Corporation.java

@@ -1,13 +1,14 @@
 package labtest01;
 
 import java.util.HashMap;
+import java.util.Iterator;
 import java.util.Map;
 
 /**
  * Represents a company that owns and operates
  * one or more grocery stores, each with its own inventory.
  */
-public class Corporation
+public class Corporation implements Iterable<Inventory>
 {
 	private Map<String, Inventory> aInventories = new HashMap<String, Inventory>();
 
@@ -19,4 +20,10 @@ public void addInventory(Inventory pInventory)
 		aInventories.put(pInventory.getName(), pInventory);
 	}
 
+	@Override
+	public Iterator<Inventory> iterator()
+	{
+		return aInventories.values().iterator();
+	}
+
 }

labtest01/labtest01/Inventory.java

@@ -1,12 +1,13 @@
 package labtest01;
 
 import java.util.HashMap;
+import java.util.Iterator;
 
 /**
  * Represents the inventory of a 
  * physical grocery store.
  */
-public class Inventory
+public class Inventory implements Iterable<Item>
 {
 	private final String aName; // Unique
 	private final HashMap<Item, Integer> aInventory = new HashMap<>();
@@ -64,7 +65,7 @@ public void dispose(Item pItem, int pQuantity)
 	 * @param pItem The item to check for availability.
 	 * @return How many of the items are available in the inventory.
 	 */
-	public int pAvailable(Item pItem)
+	public int available(Item pItem)
 	{
 		if( aInventory.containsKey(pItem))
 		{
@@ -75,4 +76,10 @@ public int pAvailable(Item pItem)
 			return 0;
 		}
 	}
+
+	@Override
+	public Iterator<Item> iterator()
+	{
+		return aInventory.keySet().iterator();
+	}
 }