Plugin Help Getting Player's Balance on Item Name

Code:

 ItemStack Balance = new ItemStack(Material.GOLD_INGOT); {

        ItemMeta BalanceMeta = Balance.getItemMeta();
        ArrayList<String> balance = new ArrayList<String> ();
        BalanceMeta.setDisplayName(ChatColor.GOLD+ "Balance: " + ChatColor.GREEN + plugin.economy.getBalance(player.getName()));
        BalanceMeta.setLore(balance);
        Balance.setItemMeta(BalanceMeta);
    }

I'm trying to use vault to get a player's balance and display it on an item name.

However I d0n't know how to retrieve the player. Please help.