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Em muốn thiết kế 1 chức năng transfer money đơn giản như này có rủi ro gì k ạ @Transaction public void transferMoney(Long start, Long destination, Double cost) { if (start.getCost < cost ) -> throw exception(Bạn ...
em có bài toán này : lúc 4:00 PM có 2 người cùng lúc đặt hàng, cùng giờ phút giây ms luôn ạ mà chỉ có 1 sản phẩm, lúc này sẽ xử lý như nào vậy ạ
