开学测试题分解步骤

import java.util.Scanner;

// 数据类 WarehouseInformation
class WarehouseInformation {
    private String productId;
    private String productName;
    private String supplier;
    private String entryDate;
    private int warehouseNumber;
    private String location;
    private int stockQuantity;

    public WarehouseInformation(String productId, String productName, String supplier, String entryDate, int warehouseNumber, String location, int stockQuantity) {
        this.productId = productId;
        this.productName = productName;
        this.supplier = supplier;
        this.entryDate = entryDate;
        this.warehouseNumber = warehouseNumber;
        this.location = location;
        this.stockQuantity = stockQuantity;
    }

    public void setProductName(String productName) {
        this.productName = productName;
    }

    public void setSupplier(String supplier) {
        this.supplier = supplier;
    }

    public void setEntryDate(String entryDate) {
        this.entryDate = entryDate;
    }

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

    public void setLocation(String location) {
        this.location = location;
    }

    public void setStockQuantity(int stockQuantity) {
        this.stockQuantity = stockQuantity;
    }
    public String getProductId() {
        return productId;
    }

    public String getProductName() {
        return productName;
    }

    public String getSupplier() {
        return supplier;
    }

    public String getEntryDate() {
        return entryDate;
    }

    public int getWarehouseNumber() {
        return warehouseNumber;
    }

    public String getLocation() {
        return location;
    }

    public int getStockQuantity() {
        return stockQuantity;
    }
}

// 主类 WarehouseManagement
public class WarehouseManagement {
    private static WarehouseInformation[] warehouse; // 仓库信息数组
    private static int warehouseCount = 0;

    public static void main(String[] args) {
        // 初始化仓库数组
        warehouse = new WarehouseInformation[100];

        // 在这里调用主界面方法
        mainFrame();
    }

    public static void mainFrame() {
        // 绘制主界面，获取用户输入，判断选择功能界面
        Scanner scanner = new Scanner(System.in);
        int choice;

        do {
            System.out.println("请选择功能：");
            System.out.println("1. 商品入库");
            System.out.println("2. 商品修改");
            System.out.println("3. 商品出库");
            System.out.println("4. 统计商品库存数量");
            System.out.println("0. 退出");
            choice = scanner.nextInt();

            switch (choice) {
                case 1:
                    goodsWarehousing();
                    break;
                case 2:
                    modifyWarehouse();
                    break;
                case 3:
                    outboundWarehouse();
                    break;
                case 4:
                    countGoods();
                    break;
                case 0:
                    System.out.println("退出程序");
                    break;
                default:
                    System.out.println("请选择有效的功能！");
                    break;
            }
        } while (choice != 0);
    }

    public static void goodsWarehousing() {
        // 商品入库方法的实现
        Scanner scanner = new Scanner(System.in);

        System.out.println("请输入商品编号：");
        String productId = scanner.next();

        // 检查商品是否已存在
        int existingIndex = findWarehouseIndex(productId);
        if (existingIndex != -1) {
            System.out.println("商品已存在，无法入库。");
            return;
        }

        System.out.println("请输入商品名称：");
        String productName = scanner.next();

        System.out.println("请输入供货商信息：");
        String supplier = scanner.next();

        System.out.println("请输入入库时间：");
        String entryDate = scanner.next();

        System.out.println("请输入存放仓库号：");
        int warehouseNumber = scanner.nextInt();

        System.out.println("请输入存放位置信息：");
        String location = scanner.next();

        System.out.println("请输入入库数量：");
        int stockQuantity = scanner.nextInt();

        if (stockQuantity <= 0) {
            System.out.println("入库数量必须大于0。");
            return;
        }

        System.out.println("是否确认入库(Y/N)：");
        String confirmation = scanner.next();

        if (confirmation.equalsIgnoreCase("Y")) {
            // 调用addData()方法追加一条新记录
            WarehouseInformation newWarehouse = new WarehouseInformation(productId, productName, supplier, entryDate, warehouseNumber, location, stockQuantity);
            addData(newWarehouse);
            System.out.println("商品入库成功！");
        }
    }

    public static void modifyWarehouse() {
        // 商品修改方法的实现
        Scanner scanner = new Scanner(System.in);

        System.out.println("请输入要修改的商品编号：");
        String productId = scanner.next();

        int index = findWarehouseIndex(productId);

        if (index == -1) {
            System.out.println("商品不存在，无法修改。");
            return;
        }

        WarehouseInformation warehouseInfo = warehouse[index];

        System.out.println("请选择需要修改的信息编号：");
        System.out.println("1. 商品名称");
        System.out.println("2. 供货商信息");
        System.out.println("3. 入库时间");
        System.out.println("4. 存放仓库号");
        System.out.println("5. 存放位置信息");
        System.out.println("6. 入库数量");
        int choice = scanner.nextInt();

        switch (choice) {
            case 1:
                System.out.println("请输入新的商品名称：");
                String newProductName = scanner.next();
                warehouseInfo.setProductName(newProductName);
                break;
            case 2:
                System.out.println("请输入新的供货商信息：");
                String newSupplier = scanner.next();
                warehouseInfo.setSupplier(newSupplier);
                break;
            case 3:
                System.out.println("请输入新的入库时间：");
                String newEntryDate = scanner.next();
                warehouseInfo.setEntryDate(newEntryDate);
                break;
            case 4:
                System.out.println("请输入新的存放仓库号：");
                int newWarehouseNumber = scanner.nextInt();
                warehouseInfo.setWarehouseNumber(newWarehouseNumber);
                break;
            case 5:
                System.out.println("请输入新的存放位置信息：");
                String newLocation = scanner.next();
                warehouseInfo.setLocation(newLocation);
                break;
            case 6:
                System.out.println("请输入新的入库数量：");
                int newStockQuantity = scanner.nextInt();
                warehouseInfo.setStockQuantity(newStockQuantity);
                break;
            default:
                System.out.println("请选择有效的信息编号。");
                break;
        }

        System.out.println("商品信息修改成功！");
    }

    public static void outboundWarehouse() {
        // 商品出库方法的实现
        Scanner scanner = new Scanner(System.in);

        System.out.println("请输入要出库的商品编号：");
        String productId = scanner.next();

        int index = findWarehouseIndex(productId);

        if (index == -1) {
            System.out.println("商品不存在，无法出库。");
            return;
        }

        WarehouseInformation warehouseInfo = warehouse[index];

        int stockQuantity = warehouseInfo.getStockQuantity();

        System.out.println("商品库存数量为：" + stockQuantity);

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

        if (quantityToOutbound <= 0 || quantityToOutbound > stockQuantity) {
            System.out.println("出库数量无效，无法出库。");
            return;
        }

        warehouseInfo.setStockQuantity(stockQuantity - quantityToOutbound);
        System.out.println("商品出库成功！");
    }

    public static void countGoods() {
        // 统计商品库存数量方法的实现
        for (int i = 0; i < warehouseCount; i++) {
            WarehouseInformation warehouseInfo = warehouse[i];
            String productId = warehouseInfo.getProductId();
            String productName = warehouseInfo.getProductName();
            int stockQuantity = warehouseInfo.getStockQuantity();

            System.out.println("商品编号：" + productId);
            System.out.println("商品名称：" + productName);
            System.out.println("库存数量：" + stockQuantity);
            System.out.println();
        }
    }

    public static void addData(WarehouseInformation newWarehouse) {
        if (warehouseCount < warehouse.length) {
            warehouse[warehouseCount++] = newWarehouse;
        } else {
            System.out.println("仓库已满，无法继续入库。");
        }
    }

    public static int findWarehouseIndex(String productId) {
        for (int i = 0; i < warehouseCount; i++) {
            if (warehouse[i].getProductId().equals(productId)) {
                return i;
            }
        }
        return -1;
    }
}