请检查是否存在语法错误或者数组越界非法访问等情况

总提示 请检查是否存在语法错误或者数组越界非法访问等情况
请问哪个大牛知道这个代码到底是哪里有语法错误了？

import java.util.Scanner;
public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int goodsNum = 0;//要购买的商品数量n
        int otherDiscountNum = 0;//满减优惠方式数量m
        double totalPrice = 0;
        double discountPrice = 0;
        int goodsSize = 0;
        int discountSize = 0;

        System.out.println("请输入商品数量和满减优惠方案的数量");
        while (scanner.hasNext()) {
            int number1 = 0, number2 = 0;
            try {
                number1 = Integer.valueOf(scanner.next().trim());
                number2 = Integer.valueOf(scanner.next().trim());
            } catch (Exception e) {
                System.out.printf("%s%n", e.getMessage());
                continue;
            }

            if (goodsNum == 0) {
                if (number1 > 10 || number1 < 1 || number2 > 10 || number2 < 1) {
                    continue;
                }
                goodsNum = number1;
                otherDiscountNum = number2;
            } else if (goodsSize < goodsNum) {
                if (number1 > 100 || number1 < 1) {
                    continue;
                }
                if (number2 > 1 || number2 < 0) {
                    continue;
                }
                totalPrice += number1;
                if (number2 == 1) {
                    discountPrice += number1 * 0.8;
                } else {
                    discountPrice += number1;
                }
                goodsSize++;
            } else if (discountSize < otherDiscountNum) {
                if (number1 <= number2) {
                    continue;
                }
                if (number1 > 1000 || number1 < 1 || number2 > 1000 || number2 < 1) {
                    continue;
                }
                if (totalPrice >= number1) {
                    if (totalPrice - number2 < discountPrice) {
                        discountPrice = totalPrice - number2;
                    }
                }
                discountSize++;
            }
            if (goodsSize == goodsNum && discountSize == otherDiscountNum) {
                System.out.printf("%#.2f%n", discountPrice);
                scanner.close();
                System.exit(-1);
                return;
            }
            if (goodsSize < goodsNum) {
                System.out.println("请输入下一个商品：");
            } else if (discountSize < otherDiscountNum) {
                System.out.println("请输入下一个满减优惠方案：");
            }
        }
        scanner.close();
        System.exit(-1);
    }
}