为了彰显代码师的地道，从main()中提取方法

main()中的代码抽取为方法

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package cn.com.d99714.smart.service;

import cn.com.d99714.smart.common.Config;
import cn.com.d99714.smart.entity.*;

import java.util.Scanner;

public class SmartHomeTest {
    // Test 类私有的交互常量
    private static final String MENU_TITLE = "===== 智能家居报价系统 V0.x =====";
    private static final String MENU_EXIT = "0. 退出";
    private static final String MSG_INVALID = "无效选项";
    private static final String MSG_SUCCESS = "创建成功";

    //  模拟数据存储
    private static SmartHomeQuotation[] quotations = new SmartHomeQuotation[10];
    private static int quotationCount = 0;

    private static Person[] people = new Person[10];
    private static int peopleCount = 0;

    private static Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) {
        //  预置测试数据
        initTestData(); //  初始化数据

        //  菜单循环
        while (true) {
            printMenu();    //  输出菜单

            String selected = scanner.nextLine().trim();
            switch (selected) {
                case "1" -> createCustomer();      // 创建客户
                case "2" -> createQuotation();     // 创建报价单
                case "3" -> showQuotationList();   // 查看报价单列表（摘要）
                case "4" -> showQuotationDetail(); // 查看报价单详情
                case "5" -> showRoleDemo();        // 多态角色展示
                case "6" -> discountDemo();        // 折扣计算演示
                case "0" -> {                      // 退出
                    System.out.println("Bye. See you next time.");
                    return;
                }
                default -> System.out.println("无效选项，请重新输入");
            }
            System.out.println();
        }
    }

    /**
     * 1. 打印菜单（方法提取）
     */
    private static void printMenu() {
        System.out.println("========== 智能家居报价系统 v0.1 ==========");
        System.out.println("1. 创建客户");
        System.out.println("2. 创建报价单");
        System.out.println("3. 查看报价单列表");
        System.out.println("4. 查看报价单详情");
        System.out.println("5. 多态角色展示");
        System.out.println("6. 折扣计算演示");
        System.out.println("0. 退出");
        System.out.print("请选择（1-6）【0-退出】：");
    }

    /**
     * 2. 预置测试数据（方法提取）
     */
    private static void initTestData() {
        Company vendor = new Company("张经理", "13829871635", "视声智能",
                "广州市黄埔区", "KNX全屋智能/灯光/安防");
        Person client1 = new Customer("赵今麦", "15138473848", "上海市静安区", 533);
        Person client2 = new Company("李经理", "13150432864", "杜亚窗帘",
                "杭州市拱墅区", "智能窗帘/智能门锁");
        Person worker = new Worker("王师傅", "13022531893", "电工", 2, 4.2);

        people[peopleCount++] = vendor;
        people[peopleCount++] = client1;
        people[peopleCount++] = client2;
        people[peopleCount++] = worker;

        SmartHomeQuotation q1 = new SmartHomeQuotation(
                Config.QUOTATION_PREFIX + "20260001-000001",
                "2026-10-02 16:35:11", "赵女士静安府全屋智能",
                client1, vendor, 35800.0, 5800.0, 6500.0, 4200.0, 2000.0);
        q1.setTotalDiscount(0.85);

        SmartHomeQuotation q2 = new SmartHomeQuotation(
                Config.QUOTATION_PREFIX + "20260001-000002",
                "2026-10-02 16:37:20", "杜亚展厅智能改造",
                client2, vendor, 28000.0, 3500.0, 4000.0, 2500.0, 1500.0);
        q2.setTotalDiscount(0.80);

        quotations[quotationCount++] = q1;
        quotations[quotationCount++] = q2;
    }

    /**
     * 3. 创建客户（方法提取）
     */
    private static void createCustomer() {
        System.out.println("创建客户");
        System.out.print("类型（1-业主 2-公司 3-师傅）：");
        String type = scanner.nextLine().trim();

        System.out.print("姓名：");
        String name = scanner.nextLine().trim();

        System.out.print("电话：");
        String phone = scanner.nextLine().trim();

        switch (type) {
            case "1" -> {
                System.out.print("房屋地址：");
                String addr = scanner.nextLine().trim();
                System.out.print("房屋面积：");
                double area = Double.parseDouble(scanner.nextLine().trim());
                people[peopleCount++] = new Customer(name, phone, addr, area);
            }
            case "2" -> {
                System.out.print("公司名称：");
                String cName = scanner.nextLine().trim();
                System.out.print("公司地址：");
                String cAddr = scanner.nextLine().trim();
                people[peopleCount++] = new Company(name, phone, cName, cAddr, "");
            }
            case "3" -> {
                System.out.print("工种：");
                String job = scanner.nextLine().trim();
                System.out.print("工龄：");
                int year = Integer.parseInt(scanner.nextLine().trim());
                System.out.print("评分：");
                double score = Double.parseDouble(scanner.nextLine().trim());
                people[peopleCount++] = new Worker(name, phone, job, year, score);
            }
            default -> System.out.println("无效类型");
        }
        System.out.println("创建成功！");
    }

    /**
     * 4. 创建报价单（方法提取）
     */
    private static void createQuotation() {
        if (peopleCount < 2) {
            System.out.println("请先创建客户和厂家");
            return;
        }
        System.out.println("创建报价单");
        //  直接选预置数据，不交互选客户
        System.out.println("功能开发中，请使用预置数据（选项3/4查看）");
    }

    /**
     * 5. 查看报价单列表（方法提取）
     */
    private static void showQuotationList() {
        System.out.println("报价单列表");
        for (int i = 0; i < quotationCount; i++) {
            System.out.println((i + 1) + ". " + quotations[i].getSummaryLine());
        }
        if (quotationCount == 0) {
            System.out.println("暂无报价单");
        }
    }

    /**
     * 6. 查看报价单详情（方法提取）
     */
    private static void showQuotationDetail() {
        System.out.print("请输入报价单序号（1-" + quotationCount + "）：");
        int idx = Integer.parseInt(scanner.nextLine().trim()) - 1;
        if (idx < 0 || idx >= quotationCount) {
            System.out.println("序号无效");
            return;
        }
        System.out.println(quotations[idx]);
    }

    /**
     * 7. 多态角色展示（方法提取）
     */
    private static void showRoleDemo() {
        System.out.println("多态角色展示");
        for (int i = 0; i < peopleCount; i++) {
            Person p = people[i];
            System.out.println(p.showRole() + " " + p.getName());
            System.out.println("  " + p.introduce());
        }
    }

    /**
     * 8. 折扣计算演示（方法提取）
     */
    private static void discountDemo() {
        System.out.println("折扣计算演示");
        for (int i = 0; i < quotationCount; i++) {
            SmartHomeQuotation q = quotations[i];
            System.out.printf("%s 原价：%,.2f，%s后：%,.2f，优惠：%,.2f%n",
                    q.getQuotationNo(), q.calcOriginalTotalAmount(), q.getDiscountDesc(),
                    q.calcDiscountedTotalAmount(), q.calcOriginalTotalAmount() - q.calcDiscountedTotalAmount());
        }
    }
}

原main()中的代码

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text
复制代码
package cn.com.d99714.smart.service;

import cn.com.d99714.smart.common.Config;
import cn.com.d99714.smart.entity.*;

public class SmartHomeTest {
    public static void main(String[] args) {
        //  厂家
        Company vendor = new Company("张经理", "13829871635", "视声智能", "广州市黄埔区", "KNX全屋智能/灯光/安防");
        //  业主
        Person client1 = new Customer("赵今麦", "15138473848", "上海市静安区", 533);
        //  商家
        Person client2 = new Company("李经理", "13150432864", "杜亚窗帘", "杭州市拱墅区", "智能窗帘/智能门锁");
        //  师傅
        Person worker = new Worker("王师傅","13022531893","电工",2,4.2);
        //  报价单：厂家给业主
        SmartHomeQuotation quote1 = new SmartHomeQuotation(
                Config.QUOTATION_PREFIX + "20260001-000001",
                "2026-10-02 16:35:11",
                "赵女士静安府全屋智能",
                client1,
                vendor,
                35800.0,
                5800.0,
                6500.0,
                4200.0,
                2000.0
        );
        //  报价单：厂家给商家
        SmartHomeQuotation quote2 = new SmartHomeQuotation(
                Config.QUOTATION_PREFIX + "20260001-000002",
                "2026-10-02 16:37:20",
                "杜亚展厅智能改造",
                client2,
                vendor,
                28000.0,
                3500.0,
                4000.0,
                2500.0,
                1500.0
        );
        //  打印报价单
        System.out.println(quote1);
        System.out.println();
        System.out.println(quote2);

        // 打印完整信息
        System.out.println();
        System.out.println("完整客户信息（点击查看）");
        System.out.println(quote1.getClientFullInfo());
        System.out.println(quote2.getClientFullInfo());

        // 折扣测试
        System.out.println();
        System.out.println("折扣测试");

        // 设置折扣
        quote1.setTotalDiscount(0.85);
        quote2.setTotalDiscount(0.80);

        // 测试 calcTotal() + getDiscountedTotal()
        System.out.printf("%s 原始金额：%,.2f 元，%s后金额：%,.2f 元，优惠金额：%.2f 元%n",
                quote1.getQuotationNo(),
                quote1.calcOriginalTotalAmount(),
                quote1.getDiscountDesc(),      // "85折"
                quote1.calcDiscountedTotalAmount(),
                quote1.calcOriginalTotalAmount() - quote1.calcDiscountedTotalAmount());

        System.out.printf("%s 原始金额：%,.2f 元，%s后金额：%,.2f 元，优惠金额：%.2f 元%n",
                quote2.getQuotationNo(),
                quote2.calcOriginalTotalAmount(),
                quote2.getDiscountDesc(),      // "8折"
                quote2.calcDiscountedTotalAmount(),
                quote2.calcOriginalTotalAmount() - quote2.calcDiscountedTotalAmount());

        // 越界折扣测试
        System.out.println();
        System.out.println("越界折扣测试");
        double invalidResult = quote1.getDiscountedTotal(1.5);
        System.out.printf("传入1.5（越界），返回：%,.2f 元%n", invalidResult);

        // Day40 批量汇总（数组遍历）
        System.out.println();
        System.out.println("批量汇总");
        SmartHomeQuotation[] quotes = {quote1, quote2};
        double allTotal = 0;
        double allFinal = 0;
        for (SmartHomeQuotation q : quotes) {
            System.out.printf("%s 原价：%,.2f 元，%s后：%,.2f 元%n",
                    q.getQuotationNo(), q.calcOriginalTotalAmount(), q.getDiscountDesc(), q.calcDiscountedTotalAmount());
            allTotal += q.calcOriginalTotalAmount();
            allFinal += q.calcDiscountedTotalAmount();
        }
        System.out.printf("总优惠：%,.2f 元%n", allTotal - allFinal);

        // 一行摘要
        System.out.println();
        System.out.println("报价单摘要");
        System.out.println(quote1.getSummaryLine());
        System.out.println(quote2.getSummaryLine());

        // Day41：多态遍历测试
        System.out.println();
        System.out.println("多态遍历测试");

        Person[] people = {client1, client2, worker, vendor};

        for (Person p : people) {
            System.out.println(p.showRole() + " " + p.getName());
            System.out.println("自我介绍：" + p.introduce());
            System.out.println();
        }
    }
}