Trying to create a Shop GUI

Hello, I am trying to create a GUI shop for my plugin but I get an error when I am trying to check if a player has 5 Emeralds to purchase a Wooden Hoe:

Error: The method getItem(int) in the type Inventory is not applicable for the arguments (ItemStack)

Code (Java):

public class ShopCommand implements CommandExecutor, Listener {
   
    private final String shopname = "§bShop";
       
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        if (sender instanceof Player) {
            Player p = (Player)sender;
            Inventory shop = Bukkit.createInventory(null, 5*9, shopname);
            shop.setItem(22, new ItemStack(Material.WOOD_HOE));
            p.openInventory(shop);          
        }
        return false;
    }
   
    @EventHandler
    public void handleShopClick(InventoryClickEvent e) {
        if(!(e.getWhoClicked() instanceof Player)) return;
        Player p = (Player) e.getWhoClicked();
        if(e.getClickedInventory().getTitle().equals(shopname)) {
            e.setCancelled(true);
            switch(e.getCurrentItem().getType()) {
            case WOOD_HOE:
                if(p.getInventory().getItem(new ItemStack(Material.EMERALD, 5))) {
                   
                }
               
            default:
                break;
            }          
        }      
    }  
}

 

Thanks, it works but when I have more than 5 emeralds in one slot it not works.

 

Code (Java):

    @EventHandler
    public void handleShopClick(InventoryClickEvent e) {
        if(!(e.getWhoClicked() instanceof Player)) return;
        Player p = (Player) e.getWhoClicked();
        if(e.getClickedInventory().getTitle().equals(shopname)) {
            e.setCancelled(true);
            switch(e.getCurrentItem().getType()) {
            case WOOD_HOE:
                if(p.getInventory().contains(new ItemStack(Material.EMERALD, 5))) {
                    p.sendMessage("You have 5 Emeralds!");
                    break;
                } else
                    p.sendMessage("You dont have 5 Emeralds!");
                break;
            default:
                break;
            }          
        }      
    }  
}