开始写继承代码，准备翻越山丘，跨过继承、抽象、接口的分水岭

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/**
 * 建Person类(联系人姓名/电话)，Company(品牌名/地址/服务范围)、Worker(工种/工龄/评分)、Customer(房屋地址/面积)继承它，
 * 创建智能家居报价系统角色对象测试
 */
 
public class Day36SmartHomeQuotationTest {
    public static void main(String[] args){
        Day36Person[] user = new Day36Person[5];
        user[0] = new Day36Company("张经理","13829871635","视声智能","广州市黄埔区","KNX全屋智能/灯光/安防");
        user[1] = new Day36Company("李经理","13150432864","杜亚窗帘","杭州市拱墅区","智能窗帘/智能门锁");
        user[2] = new Day36Worker("王强","18125664636","灯光设计师",3,4.5);
        user[3] = new Day36Worker("陈明昊","13712570240","智能设计师",5,4.8);
        user[4] = new Day36Customer("马思纯","15138473848","上海市静安区",533);

        for (Day36Person per : user){
            System.out.println("----------".repeat(10));
            System.out.println(per);
            System.out.println(per.introduce());
        }
    }
}

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**Person类（父类）**

public class Day36Person {
    private static final String  PHONE_REGEX = "^1[3-9]\\d{9}$";
    private static final String ERROR_PHONE_FORMAT = "手机号码格式不正确，已置空！";

    private String name = "";
    private String phone = "";

    public Day36Person() {
    }

    public Day36Person(String name, String phone) {
        setName(name);
        setPhone(phone);
    }

    public void setName(String name) {
        this.name = name;
    }

    public void setPhone(String phone) {
        if (phone != null && phone.matches(PHONE_REGEX) ){
            this.phone = phone;
        }else{
            System.out.println(ERROR_PHONE_FORMAT);
            this.phone = "";
        }
    }

    public String getName() {
        return this.name;
    }

    public String getPhone() {
        return this.phone;
    }

    @Override
    public String toString() {
        return "姓名：" + this.getName() + "，电话：" + this.getPhone();
    }

    public String introduce(){
        return "";
    }
}

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**Company类，继承Person类**

public class Day36Company extends Day36Person {
    private String companyName = "";
    private String address = "";
    private String serviceScope = "";

    public Day36Company() {
    }

    public Day36Company(String name, String phone, String companyName, String address, String serviceScope) {
        super(name, phone);
        setCompanyName(companyName);
        setAddress(address);
        setServiceScope(serviceScope);
    }

    public void setCompanyName(String companyName) {
        this.companyName = companyName;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public void setServiceScope(String serviceScope) {
        this.serviceScope = serviceScope;
    }

    public String getCompanyName() {
        return this.companyName;
    }

    public String getAddress() {
        return this.address;
    }

    public String getServiceScope() {
        return this.serviceScope;
    }

    @Override
    public String toString() {
        return "【公司】联系人：" + this.getName() + "，电话：" + this.getPhone() + "，品牌：" + this.getCompanyName() + "，地址：" + this.getAddress() + "，服务范围：" + this.getServiceScope();
    }

    public String introduce() {
        StringBuilder sb = new StringBuilder();
        sb.append("您好，我们是").append(this.getCompanyName()).append("，公司位于").append(this.getAddress()).append("，主营").append(this.getServiceScope()).append("，联系人").append(this.getName());
        return sb.toString();
    }
}

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**Work类，继承Person类**

public class Day36Worker extends Day36Person {
    private static final String ERROR_WORK_YEAR = "工龄0-70，其他无效！已置0";
    private static final String ERROR_SCORE = "评分只能0-5，整数或一位小数！已置0";

    private String jobType = "";
    private int workYear = 0;
    private double score = 0.0;

    public Day36Worker() {
    }

    public Day36Worker(String name, String phone, String jobType, int workYear, double score) {
        super(name, phone);
        setJobType(jobType);
        setWorkYear(workYear);
        setScore(score);
    }

    public void setJobType(String jobType) {
        this.jobType = jobType;
    }

    public void setWorkYear(int workYear) {
        if (workYear >= 0 && workYear <= 70) {
            this.workYear = workYear;

        } else {
            System.out.println(ERROR_WORK_YEAR);
            this.workYear = 0;
        }
    }

    public void setScore(double score) {
        if (score >= 0 && score <= 5) {
            this.score = score;

        } else {
            System.out.println(ERROR_SCORE);
            this.score = 0.0;
        }
    }

    public String getJobType() {
        return this.jobType;
    }

    public int getWorkYear() {
        return this.workYear;
    }

    public double getScore() {
        return this.score;
    }

    @Override
    public String toString() {
        return "【师傅】：" + this.getName() + "，" + this.getPhone() + "，" + this.getJobType() + "，" + this.getWorkYear() + "，" + this.getScore();
    }

    public String introduce() {
        StringBuilder sb = new StringBuilder();
        sb.append("我是").append(this.getJobType()).append(",从业").append(this.getWorkYear()).append("年，评分").append(this.getScore()).append("，电话").append(this.getPhone());
        return sb.toString();
    }
}

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**Customer类，继承Person类**

public class Day36Customer extends Day36Person {
    private static final String ERROR_HOUSE_AREA = "面积大于0小于5000，整数或一位小数！";

    private String houseAddress = "";
    private double houseArea = 0.0;

    public Day36Customer() {
    }

    public Day36Customer(String name, String phone, String houseAddress, double houseArea) {
        super(name, phone);
        setHouseAddress(houseAddress);
        setHouseArea(houseArea);
    }

    public void setHouseAddress(String houseAddress) {
        this.houseAddress = houseAddress;
    }

    public void setHouseArea(double houseArea) {
        if (houseArea > 0.0 && houseArea < 5000.0) {
            this.houseArea = houseArea;

        } else {
            System.out.println(ERROR_HOUSE_AREA);
            this.houseArea = 0.0;
        }
    }

    public String getHouseAddress() {
        return this.houseAddress;
    }

    public double getHouseArea() {
        return this.houseArea;
    }

    @Override
    public String toString() {
        return "【业主】：" + this.getName() + "，" + this.getPhone() + "，" + this.getHouseAddress() + "，" + this.getHouseArea() + "m²";
    }

    public String introduce() {
        StringBuilder sb = new StringBuilder();
        sb.append("业主").append(this.getName()).append(",房屋面积").append(this.getHouseArea()).append("m²，位于").append(this.getHouseAddress()).append("，需要智能家居报价。");
        return sb.toString();
    }
}