import java.util.HashMap;

import java.util.Map;

$//$ Bag Interface

interface Bag $\{$

void addItem$($String itemName, double price$)$;

boolean removeItem$($String itemName$)$;

void displayCart$()$;

$\}$

$//$ OnlineDeliveryBag implementing Bag interface

class OnlineDeliveryBag implements Bag $\{$

private HashMap shoppingCart;

public OnlineDeliveryBag$()\{$

shoppingCart $=$ new HashMap$<>()$;

$\}$

@Override

public void addItem$($String itemName, double price$)\{$

shoppingCart.put$($itemName$,$ price$)$;

System.out.println$($itemName $+"$ added to the cart."$)$;

$\}$

@Override

public boolean removeItem$($String itemName$)\{$

if $($shoppingCart$.$containsKey$($itemName$))\{$

shoppingCart.remove$($itemName$)$;

System.out.println$($itemName $+"$ removed from the cart."$)$;

return true;

$\}$ else $\{$

System.out.println$($itemName $+"$ not found in the cart."$)$;

return false;

$\}$

$\}$

@Override

public void displayCart$()\{$

System.out.println$("$Items in the cart:"$)$;

for $($Map$.$Entry entry : shoppingCart.entrySet$())\{$

System.out.println$($entry$.$getKey$()+"-$ Price: $$"+$ entry.getValue$())$;

$\}$

$\}$

$\}$

$//$ Main class to demonstrate the usage

public class Main $\{$

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

OnlineDeliveryBag shoppingCart $=$ new OnlineDeliveryBag$()$;

$//$ Adding items to the cart

shoppingCart.addItem$("$Can of Soup", $4\mathrm{.}00)$;

shoppingCart.addItem$("$Bread$",2\mathrm{.}50)$;

$//$ Displaying the cart

shoppingCart.displayCart$()$;

$//$ Removing an item from the cart

shoppingCart.removeItem$("$Can of Soup"$)$;

$//$ Displaying the updated cart

shoppingCart.displayCart$()$;

$\}$