i am having an error with a multiple file code in java. please only edit things to fix the errors and not changing my variable names. here is my error "ShoppingCartManager.java:$25$: error: variable option is already defined in method printMenu$($ShoppingCart$)$

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

$^$

ShoppingCartManager.java:$42$: error: cannot find symbol

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

$^$

symbol: variable scnrInt

location: class ShoppingCartManager

ShoppingCartManager.java:$45$: error: cannot find symbol

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

$^$

symbol: variable scnrInt

location: class ShoppingCartManager

$3$ errors"

and heres my code

import java.util.Scanner;

public class ShoppingCartManager $\{$

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$)$;

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

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$)$;

$\}$

$\}$

$\}$