update

public void update(Coffee c) {
		String sql = "UPDATE COFFEES "
				  + "SET PRICE = :price, SALES = :sales, TOTAL = :total "
				  + "WHERE COF_NAME = :cof_name AND SUP_ID = :sup_id";
		Map<String, Object> parameters = new HashMap<>();
		parameters.put("price", c.getPrice().floatValue());
		parameters.put("sales", c.getSales());
		parameters.put("total", c.getTotal());
		parameters.put("cof_name", c.getName());
		parameters.put("sup_id", c.getSupplierId());
		jdbc.update(sql, parameters);
	}