i am having a error in java that i do not know what it means, its multiple files. this is the error message "Exception in thread "main" java.util.NoSuchElementException

at java.base$/$java$.$util.Scanner.throwFor$($Scanner$.$java:$937)$

at java.base$/$java$.$util.Scanner.next$($Scanner$.$java:$1478)$

at ShoppingCartManager.printMenu$($ShoppingCartManager$.$java:$31)$

at ShoppingCartManager.main$($ShoppingCartManager$.$java:$115)"$

this is my first file

import java.util.Scanner;

public class ShoppingCartManager $\{$

$//$Implement the printMenu$()$ method. printMenu$()$ has a ShoppingCart parameter,

$//$ and outputs a menu of options to manipulate the shopping cart.

$//$ Each option is represented by a single character. Build and output the menu within the method.

public static void printMenu$($ShoppingCart shoppingCart$)\{$

System.out.println $("$

MENU"$)$;

System.out.println $("$a $-$ Add item to cart"$)$;

System.out.println $("$d $-$ Remove item from cart"$)$;

System.out.println $("$c $-$ Change item quantity"$)$;

System.out.println $("$i $-$ Output items' descriptions"$)$;

System.out.println $("$o $-$ Output shopping cart"$)$;

System.out.println $("$q $-$ Quit"$)$;

System.out.println $("$

Choose an option:"$)$;

Scanner scnr $=$ new Scanner $($System$.$in$)$;

Scanner scnrInt $=$ new Scanner $($System$.$in$)$;

$//$ Declare a new item to purchase.

ItemToPurchase item $=$ new ItemToPurchase $()$;

String Name $=""$;

String Description $=""$;

int Price $=0$;

int Quantity $=0$;

String option $=$ scnr$.$next $()$;

scnr$.$nextLine$()$;

switch$($option$.$charAt $(0))\{$

case $\text{'}$a$\text{'}$:

System.out.println $("$

ADD ITEM TO CART"$)$;

scnr $=$ new Scanner $($System$.$in$)$;

System.out.println $("$Enter the item name:"$)$;

Name $=$ scnr$.$nextLine $()$;

System.out.println $("$Enter the item description:"$)$;

Description $=$ scnr$.$nextLine $()$;

System.out.println $("$Enter the item price:"$)$;

Price $=$ scnrInt.nextInt $()$;

System.out.println $("$Enter the item quantity:"$)$;

Quantity $=$ scnrInt.nextInt $()$;

item $=$ new ItemToPurchase $($Name$,$ Description, Price,

Quantity$)$;

shoppingCart.addItem $($item$)$;

printMenu $($shoppingCart$)$;

break;

case $\text{'}$d$\text{'}$:

System.out.println $("$REMOVE ITEM FROM CART"$)$;

System.out.println $("$Enter name of item to remove:"$)$;

scnr$.$nextLine $()$;

String itemName $=$ scnr$.$nextLine $()$;

shoppingCart.removeItem $($itemName$)$;

printMenu $($shoppingCart$)$;

break;

case $\text{'}$c$\text{'}$:

System.out.println $("$CHANGE ITEM QUANTITY"$)$;

System.out.println $("$Enter the item name:"$)$;

scnr$.$nextLine $()$;

itemName $=$ scnr$.$nextLine $()$;

shoppingCart.modifyItem $($itemName$)$;

printMenu $($shoppingCart$)$;

break;

case $\text{'}$i$\text{'}$:

System.out.println $("$OUTPUT ITEM'S DESCRIPTIONS"$)$;

shoppingCart.printDescriptions $()$;

printMenu $($shoppingCart$)$;

break;

case $\text{'}$o$\text{'}$:

System.out.println $("$OUTPUT SHOPPING CART"$)$;

shoppingCart.printTotal $()$;

printMenu $($shoppingCart$)$;

break;

default:

System.out.println $("$Invalid Choice!"$)$;

printMenu $($shoppingCart$)$;

$\}$

System.out.println $("$

$")$;

$\}$

public static void main $($String$[]$args$)\{$

$\{$

Scanner scnr $=$ new Scanner $($System$.$in$)$;

System.out.println $("$Enter customer's name:"$)$;

String customerName $=$ scnr$.$nextLine $()$;

System.out.println $("$Enter today's date:"$)$;

String currentDate $=$ scnr$.$nextLine $()$;

System.out.println $("$

Customer name: $"+$ customerName$)$;

System.out.println $("$Today$\text{'}$s date: $"+$ currentDate$)$;

$//$ Create a linked list shopping cart.

ShoppingCart shoppingCart $=$ new ShoppingCart $($customerName$,$ currentDate$)$;

$//$ Print menu.

printMenu $($shoppingCart$)$;

$\}$

$\}$

$\}$

its too many character to add them all can you figure it out with this information?