用java实现一个仓库管理系统

好的，仓库管理系统可以包含以下功能：添加商品、删除商品、修改商品信息、查询商品信息、入库、出库、库存盘点等。以下是一个简单的Java代码示例，可以作为仓库管理系统的基础：

import java.util.ArrayList;
import java.util.Scanner;

public class WarehouseManagementSystem {
    private ArrayList<Product> products;

    public WarehouseManagementSystem() {
        products = new ArrayList<>();
    }

    public void addProduct(Product product) {
        products.add(product);
    }

    public void removeProduct(int index) {
        products.remove(index);
    }

    public void updateProduct(int index, Product product) {
        products.set(index, product);
    }

    public Product getProduct(int index) {
        return products.get(index);
    }

    public ArrayList<Product> getAllProducts() {
        return products;
    }

    public int getProductCount() {
        return products.size();
    }

    public static void main(String[] args) {
        WarehouseManagementSystem wms = new WarehouseManagementSystem();
        Scanner scanner = new Scanner(System.in);

        while (true) {
            System.out.println("请选择操作：");
            System.out.println("1. 添加商品");
            System.out.println("2. 删除商品");
            System.out.println("3. 修改商品信息");
            System.out.println("4. 查询商品信息");
            System.out.println("5. 入库");
            System.out.println("6. 出库");
            System.out.println("7. 库存盘点");
            System.out.println("0. 退出");

            int choice = scanner.nextInt();
            scanner.nextLine();

            switch (choice) {
                case 1:
                    System.out.println("请输入商品名称：");
                    String name = scanner.nextLine();
                    System.out.println("请输入商品数量：");
                    int quantity = scanner.nextInt();
                    scanner.nextLine();
                    Product product = new Product(name, quantity);
                    wms.addProduct(product);
                    System.out.println("添加成功！");
                    break;
                case 2:
                    System.out.println("请输入要删除的商品编号：");
                    int index = scanner.nextInt();
                    scanner.nextLine();
                    wms.removeProduct(index);
                    System.out.println("删除成功！");
                    break;
                case 3:
                    System.out.println("请输入要修改的商品编号：");
                    int index2 = scanner.nextInt();
                    scanner.nextLine();
                    System.out.println("请输入新的商品名称：");
                    String name2 = scanner.nextLine();
                    System.out.println("请输入新的商品数量：");
                    int quantity2 = scanner.nextInt();
                    scanner.nextLine();
                    Product product2 = new Product(name2, quantity2);
                    wms.updateProduct(index2, product2);
                    System.out.println("修改成功！");
                    break;
                case 4:
                    System.out.println("请输入要查询的商品编号：");
                    int index3 = scanner.nextInt();
                    scanner.nextLine();
                    Product product3 = wms.getProduct(index3);
                    System.out.println("商品名称：" + product3.getName());
                    System.out.println("商品数量：" + product3.getQuantity());
                    break;
                case 5:
                    System.out.println("请输入要入库的商品编号：");
                    int index4 = scanner.nextInt();
                    scanner.nextLine();
                    System.out.println("请输入入库数量：");
                    int quantity4 = scanner.nextInt();
                    scanner.nextLine();
                    Product product4 = wms.getProduct(index4);
                    product4.setQuantity(product4.getQuantity() + quantity4);
                    System.out.println("入库成功！");
                    break;
                case 6:
                    System.out.println("请输入要出库的商品编号：");
                    int index5 = scanner.nextInt();
                    scanner.nextLine();
                    System.out.println("请输入出库数量：");
                    int quantity5 = scanner.nextInt();
                    scanner.nextLine();
                    Product product5 = wms.getProduct(index5);
                    if (product5.getQuantity() < quantity5) {
                        System.out.println("库存不足！");
                    } else {
                        product5.setQuantity(product5.getQuantity() - quantity5);
                        System.out.println("出库成功！");
                    }
                    break;
                case 7:
                    System.out.println("当前库存：");
                    for (int i = 0; i < wms.getProductCount(); i++) {
                        Product product6 = wms.getProduct(i);
                        System.out.println("商品编号：" + i);
                        System.out.println("商品名称：" + product6.getName());
                        System.out.println("商品数量：" + product6.getQuantity());
                    }
                    break;
                case 0:
                    System.out.println("谢谢使用！");
                    System.exit(0);
                    break;
                default:
                    System.out.println("输入有误，请重新输入！");
                    break;
            }
        }
    }
}

class Product {
    private String name;
    private int quantity;

    public Product(String name, int quantity) {
        this.name = name;
        this.quantity = quantity;
    }

    public String getName() {
        return name;
    }

    public int getQuantity() {
        return quantity;
    }

    public void setQuantity(int quantity) {
        this.quantity = quantity;
    }
}