출력 예시

상품명: 두부, 가격: 2000, 수량: 2 상품명: 김치, 가격: 5000, 수량: 1 상품명: 콜라, 가격: 1500, 수량: 2 총 결제 금액: 12000

package ref.ex;
 public class ProductOrder {
 String productName;
 int price;
 int quantity;
 }

package ref.ex;
 public class ProductOrderMain2 {
 public static void main(String[] args) {
 ProductOrder[] orders = new ProductOrder[3];
        orders[0] = createOrder("두부", 2000, 2);
        orders[1] = createOrder("김치", 5000, 1);
        orders[2] = createOrder("콜라", 1500, 2);
 printOrders(orders);
 int totalAmount = getTotalAmount(orders);
 System.out.println("총 결제 금액: " + totalAmount);
    }
    
 static ProductOrder createOrder(String productName, int price, int quantity) {
	 ProductOrder order = new ProductOrder();
       order.productName = productName;
       order.price = price;
       order.quantity = quantity;
 return order;
    }
    
 static void printOrders(ProductOrder[] orders) {
 for (ProductOrder order : orders) {
 System.out.println("상품명: " + order.productName + ", 가격: " + 
order.price + ", 수량: " + order.quantity);
        }
    }
    
 static int getTotalAmount(ProductOrder[] orders) {
 int totalAmount = 0;
 for (ProductOrder order : orders) {
            totalAmount += order.price * order.quantity;
        }
 return totalAmount;
    }
 }