修改后代码

import java.util.Scanner;

class WarehouseInformation {
    private String itemNumber;
    private String itemName;
    private String supplierName;
    private String warehousingTime;
    private String shipmentTime;
    private String warehouseNumber;
    private String warehousePlace;
    private int inNumber;
    private int outNumber;

    public WarehouseInformation() {

        itemNumber = "";

        itemName = "";

        supplierName = "";

        warehousingTime = "";

        shipmentTime = "";

        warehouseNumber = "";

        warehousePlace = "";

        inNumber = 0;
        outNumber = 0;
    }


    public String getItemNumber() {
        return itemNumber;
    }

    public void setItemNumber(String itemNumber) {
        this.itemNumber = itemNumber;
    }

    public String getItemName() {
        return itemName;
    }

    public void setItemName(String itemName) {
        this.itemName = itemName;
    }

    public String getSupplierName() {
        return supplierName;
    }

    public void setSupplierName(String supplierName) {
        this.supplierName = supplierName;
    }

    public String getWarehousingTime() {
        return warehousingTime;
    }

    public void setWarehousingTime(String warehousingTime) {
        this.warehousingTime = warehousingTime;
    }

    public String getShipmentTime() {
        return shipmentTime;
    }

    public void setShipmentTime(String shipmentTime) {
        this.shipmentTime = shipmentTime;
    }

    public String getWarehouseNumber() {
        return warehouseNumber;
    }

    public void setWarehouseNumber(String warehouseNumber) {
        this.warehouseNumber = warehouseNumber;
    }

    public String getWarehousePlace() {
        return warehousePlace;
    }

    public void setWarehousePlace(String warehousePlace) {
        this.warehousePlace = warehousePlace;
    }

    public int getInNumber() {
        return inNumber;
    }

    public void setInNumber(int inNumber) {
        this.inNumber = inNumber;
    }

    public int getOutNumber() {
        return outNumber;
    }

    public void setOutNumber(int outNumber) {
        this.outNumber = outNumber;
    }
}

class WarehouseManagement {
    private static final int MAX_PRODUCTS = 5;
    private static WarehouseInformation[] warehouseProducts = new WarehouseInformation[MAX_PRODUCTS];
    private static int productCount = 0;

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (true) {
            System.out.println("***********************************************************");
            System.out.println("石家庄铁道大学前进22软件开发有限公司");
            System.out.println("仓库管理系统2022版");
            System.out.println("***********************************************************");
            System.out.println("1、商品入库管理");
            System.out.println("2、商品信息修改");
            System.out.println("3、商品出库管理");
            System.out.println("4、仓库盘点管理");
            System.out.println("请输入数字（1-4）执行相应功能，输入其他数字退出系统：");
            int choice = scanner.nextInt();
            scanner.nextLine();

            switch (choice) {
                case 1:
                    manageWarehouseIn(scanner);
                    break;
                case 2:
                    modifyProductInfo(scanner);
                    break;
                case 3:
                    manageWarehouseOut(scanner);
                    break;
                case 4:
                    doInventory();
                    break;
                default:
                    System.out.println("该选项不存在，请重新输入！");
                    break;
            }
        }
    }

    private static void manageWarehouseIn(Scanner scanner) {
        if (productCount >= MAX_PRODUCTS) {
            System.out.println("仓库已满，无法继续入库！");
            return;
        }

        WarehouseInformation product = new WarehouseInformation();
        System.out.println("请输入商品编码：");

        String itemNumber = scanner.nextLine();
        product.setItemNumber(itemNumber);


        System.out.println("请输入商品名称：");
        String itemName = scanner.nextLine();
        product.setItemName(itemName);

        System.out.println("请输入供货商信息：");

        String supplierName = scanner.nextLine();
        product.setSupplierName(supplierName);

        System.out.println("请输入入库时间（格式：yyyyMMdd）：");

        String warehousingTime = scanner.nextLine();
        product.setWarehousingTime(warehousingTime);

        System.out.println("请输入存放仓库号：");

        String warehouseNumber = scanner.nextLine();
        product.setWarehouseNumber(warehouseNumber);

        System.out.println("请输入存放位置信息（格式：XXXXYYZZ）：");

        String warehousePlace = scanner.nextLine();
        product.setWarehousePlace(warehousePlace);

        System.out.println("请输入入库商品数量：");

        int inNumber = scanner.nextInt();
        product.setInNumber(inNumber);

        scanner.nextLine();


        System.out.println("商品信息如下：");
        displayProductInfo(product);

        System.out.println("该商品入库操作已完成，是否提交（Y/N）：");
        String submitChoice = scanner.nextLine();

        if (submitChoice.equalsIgnoreCase("Y")) {
            warehouseProducts[productCount++] = product;
            System.out.println("商品信息已提交！");
        } else {
            System.out.println("商品信息未提交！");
        }
    }

    private static void displayProductInfo(WarehouseInformation product) {
        System.out.println("***********************************************************");
        System.out.println("石家庄铁道大学前进22软件开发有限公司");
        System.out.println("仓库管理系统2022版");
        System.out.println("***********************************************************");
        System.out.println("商品编号：" + product.getItemNumber());
        System.out.println("商品名称：" + product.getItemName());
        System.out.println("供货商信息：" + product.getSupplierName());
        System.out.println("入库时间：" + product.getWarehousingTime());
        System.out.println("存放仓库号：" + product.getWarehouseNumber());
        System.out.println("存放位置信息：" + product.getWarehousePlace());
        System.out.println("入库商品数量：" + product.getInNumber());
    }

    private static void modifyProductInfo(Scanner scanner) {
        System.out.println("请输入商品编号：");
        String itemNumber = scanner.nextLine();

        int index = findProductIndex(itemNumber);
        if (index == -1) {
            System.out.println("库中没有该商品！");
            return;
        }

        WarehouseInformation product = warehouseProducts[index];
        displayProductInfo(product);

        System.out.println("请选择需要修改的信息编号（1-7）：");
        int modifyChoice = scanner.nextInt();
        scanner.nextLine(); // 消耗换行符

        switch (modifyChoice) {
            case 1:
                System.out.println("请输入修改后的商品编号：");
                String newItemNumber = scanner.nextLine();
                product.setItemNumber(newItemNumber);
                break;
            case 2:
                System.out.println("请输入修改后的商品名称：");
                String newItemName = scanner.nextLine();
                product.setItemName(newItemName);
                break;
            case 3:
                System.out.println("请输入修改后的供货商信息：");
                String newSupplierName = scanner.nextLine();
                product.setSupplierName(newSupplierName);
                break;
            case 4:
                System.out.println("请输入修改后的入库时间（格式：yyyyMMdd）：");
                String newWarehousingTime = scanner.nextLine();
                product.setWarehousingTime(newWarehousingTime);
                break;
            case 5:
                System.out.println("请输入修改后的存放仓库号：");
                String newWarehouseNumber = scanner.nextLine();
                product.setWarehouseNumber(newWarehouseNumber);
                break;
            case 6:
                System.out.println("请输入修改后的存放位置信息（格式：XXXXYYZZ）：");
                String newWarehousePlace = scanner.nextLine();
                product.setWarehousePlace(newWarehousePlace);
                break;
            case 7:
                System.out.println("请输入修改后的商品数量：");
                int newInNumber = scanner.nextInt();
                product.setInNumber(newInNumber);
                break;
            default:
                System.out.println("该选项不存在，请重新输入！");
                break;
        }

        System.out.println("是否保存修改信息（Y/N）：");
        String saveChoice = scanner.nextLine();

        if (saveChoice.equalsIgnoreCase("Y")) {
            System.out.println("修改信息已保存！");
        } else {
            System.out.println("修改信息未保存！");
        }
    }

    private static int findProductIndex(String itemNumber) {
        for (int i = 0; i < productCount; i++) {
            if (warehouseProducts[i].getItemNumber().equals(itemNumber)) {
                return i;
            }
        }
        return -1;
    }

    private static void manageWarehouseOut(Scanner scanner) {
        System.out.println("请输入商品编号：");
        String itemNumber = scanner.nextLine();

        int index = findProductIndex(itemNumber);
        if (index == -1) {
            System.out.println("库中没有该商品！");
            return;
        }

        WarehouseInformation product = warehouseProducts[index];
        displayProductInfo(product);

        System.out.println("请输入出库时间（格式：yyyyMMdd）：");
        String shipmentTime = scanner.nextLine();
        product.setShipmentTime(shipmentTime);

        System.out.println("请输入出库数量：");
        int outNumber = scanner.nextInt();
        product.setOutNumber(outNumber);

        scanner.nextLine();

        if (outNumber <= product.getInNumber()) {
            System.out.println("出库操作已完成！");
        } else {
            System.out.println("出库数量大于库存数量，出库操作失败！");
            product.setShipmentTime("");
            product.setOutNumber(0);
        }
    }

    private static void doInventory() {
        System.out.println("仓库盘点功能暂未实现！");
    }
}