Odtnhj

I have an array setup and another class in this program that gives me a getInStock to give me the current value in the array. I'm trying to subtract one of the stock once the person using the program enters in a number for the item being used. I want it to then update the number in the array in case it is used again.

public static void main(String args) 
 // create the stdin object (to use the keyboard)
 Scanner stdin = new Scanner(System.in);
 int itemSelected = 0; // Item ID selected by user, 0 for not available
 int itemIndex = 0; // selected index into array of items

 // display items in the arrays using the toString method
 System.out.printf ("%-4.4s %6.6s %-11.11sn", "Item", "Price", "Description");
 for (Item b : ITEM_LIST) System.out.println(b); 


 System.out.println ("nSelect an item by its item number. Enter 0 to quit");
 do 
 try 
 System.out.printf ("item #%d: ", shoppingCartCount+1);
 itemSelected = stdin.nextInt( ); // read line from keyboard
 if (itemSelected == 0)
 continue; // exit the loop

 // Search ITEM_LIST looking for the user's requested itemID
 for (itemIndex=0; itemIndex<ITEM_LIST.length; itemIndex++)

 if (itemSelected == ITEM_LIST[itemIndex].getItemID())

 if (ITEM_LIST[itemIndex].getInStock()<1)
 System.out.println("Item is not in stock try later"); 
 
 break; // it was found, itemIndex = position in the LIST
 
 if (itemIndex == ITEM_LIST.length) // reached the end and not found 
 System.out.println("Item is not available");
 
 if (shoppingCartCount==9 ) 
 shoppingCart[shoppingCartCount] = ITEM_LIST[itemIndex];
 shoppingCartCount++; // keep track of items in the cart 
 System.out.println("Your cart is full.");
 break;
 
 else // The item was found 
 shoppingCart[shoppingCartCount] = ITEM_LIST[itemIndex];
 shoppingCartCount++; // keep track of items in the cart 
 
 //end of try
 catch (InputMismatchException while (itemSelected != 0); // loop until a '0' is entered

 // display the shopping cart
 System.out.println("nnThank you for shopping at Shop-azon");
 double total=0;
 for (int i=0; i<shoppingCartCount; i++) 
 System.out.println(shoppingCart[i]);
 total += shoppingCart[i].getPrice(); 
 
 System.out.println(shoppingCartCount + " items in your cart");
 System.out.printf("Your total is $%.2fnn", total); 
 // end of main() 

for the use case you have explained , like you want to remove the number when you are using it and later update it better use Queue in Java and use functions like pop() , push() , seek() for help you can see this

Click here!