你好，请问你能用JAVA实现程序模拟简单的企业职工管理系统。编写程序实现以下要求: (1)请按继承层次构建企业的各种职工类型，包括超类Employee，以及相应的子类Manager、Secretary和Programmer，从Manager继承又可得到Executive。超类Employee有编号，姓名，年龄，薪金、地址和雇佣日期等信息。 (2)用户可以根据职工编号或职工姓名查找所需的信息。管理人员可以增加，删除数据；可以写入一个数据，查找一个数据，或删除一个数据；此外，管理人员可以增加或降低每个职工的薪金。程序通过ArrayList来实现增加，查找，删除数据。

好的，我可以帮你解答这个问题。

下面是一个简单的企业职工管理系统的JAVA代码实现，你可以参考一下。

import java.util.ArrayList;

//职工类
class Employee {
    private String id; //编号
    private String name; //姓名
    private int age; //年龄
    private double salary; //薪金
    private String address; //地址
    private String hireDate; //雇佣日期

    public Employee(String id, String name, int age, double salary, String address, String hireDate) {
        this.id = id;
        this.name = name;
        this.age = age;
        this.salary = salary;
        this.address = address;
        this.hireDate = hireDate;
    }

    //getter、setter方法
    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

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

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public double getSalary() {
        return salary;
    }

    public void setSalary(double salary) {
        this.salary = salary;
    }

    public String getAddress() {
        return address;
    }

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

    public String getHireDate() {
        return hireDate;
    }

    public void setHireDate(String hireDate) {
        this.hireDate = hireDate;
    }

    //重写toString方法
    @Override
    public String toString() {
        return "编号：" + id + "，姓名：" + name + "，年龄：" + age + "，薪金：" + salary + "，地址：" + address + "，雇佣日期：" + hireDate;
    }
}

//经理类
class Manager extends Employee {
    private String department; //部门

    public Manager(String id, String name, int age, double salary, String address, String hireDate, String department) {
        super(id, name, age, salary, address, hireDate);
        this.department = department;
    }

    //getter、setter方法
    public String getDepartment() {
        return department;
    }

    public void setDepartment(String department) {
        this.department = department;
    }

    //重写toString方法
    @Override
    public String toString() {
        return super.toString() + "，部门：" + department;
    }
}

//秘书类
class Secretary extends Employee {
    private String boss; //上司

    public Secretary(String id, String name, int age, double salary, String address, String hireDate, String boss) {
        super(id, name, age, salary, address, hireDate);
        this.boss = boss;
    }

    //getter、setter方法
    public String getBoss() {
        return boss;
    }

    public void setBoss(String boss) {
        this.boss = boss;
    }

    //重写toString方法
    @Override
    public String toString() {
        return super.toString() + "，上司：" + boss;
    }
}

//程序员类
class Programmer extends Employee {
    private String language; //编程语言

    public Programmer(String id, String name, int age, double salary, String address, String hireDate, String language) {
        super(id, name, age, salary, address, hireDate);
        this.language = language;
    }

    //getter、setter方法
    public String getLanguage() {
        return language;
    }

    public void setLanguage(String language) {
        this.language = language;
    }

    //重写toString方法
    @Override
    public String toString() {
        return super.toString() + "，编程语言：" + language;
    }
}

//执行官类
class Executive extends Manager {

    public Executive(String id, String name, int age, double salary, String address, String hireDate, String department) {
        super(id, name, age, salary, address, hireDate, department);
    }

    //重写toString方法
    @Override
    public String toString() {
        return super.toString();
    }
}

//企业职工管理系统类
public class EmployeeManagementSystem {
    private ArrayList<Employee> employeeList; //职工列表

    public EmployeeManagementSystem() {
        employeeList = new ArrayList<>();
    }

    //增加职工
    public void addEmployee(Employee employee) {
        employeeList.add(employee);
        System.out.println("职工信息已添加！");
    }

    //删除职工
    public void deleteEmployee(String id) {
        for (Employee employee : employeeList) {
            if (employee.getId().equals(id)) {
                employeeList.remove(employee);
                System.out.println("职工信息已删除！");
                return;
            }
        }
        System.out.println("未找到该职工信息！");
    }

    //查找职工
    public void searchEmployee(String keyword) {
        boolean flag = false;
        for (Employee employee : employeeList) {
            if (employee.getId().equals(keyword) || employee.getName().equals(keyword)) {
                System.out.println(employee);
                flag = true;
            }
        }
        if (!flag) {
            System.out.println("未找到相关职工信息！");
        }
    }

    //增加薪金
    public void addSalary(String id, double amount) {
        for (Employee employee : employeeList) {
            if (employee.getId().equals(id)) {
                employee.setSalary(employee.getSalary() + amount);
                System.out.println("薪金已增加！");
                return;
            }
        }
        System.out.println("未找到该职工信息！");
    }

    //降低薪金
    public void reduceSalary(String id, double amount) {
        for (Employee employee : employeeList) {
            if (employee.getId().equals(id)) {
                employee.setSalary(employee.getSalary() - amount);
                System.out.println("薪金已降低！");
                return;
            }
        }
        System.out.println("未找到该职工信息！");
    }

    //测试程序
    public static void main(String[] args) {
        EmployeeManagementSystem system = new EmployeeManagementSystem();

        //增加职工
        Employee employee1 = new Manager("001", "张三", 30, 8000, "北京市", "2021-01-01", "销售部");
        Employee employee2 = new Secretary("002", "李四", 25, 5000, "上海市", "2021-01-02", "张三");
        Employee employee3 = new Programmer("003", "王五", 28, 6000, "广州市", "2021-01-03", "Java");
        Employee employee4 = new Executive("004", "赵六", 35, 10000, "深圳市", "2021-01-04", "总裁办公室");

        system.addEmployee(employee1);
        system.addEmployee(employee2);
        system.addEmployee(employee3);
        system.addEmployee(employee4);

        //删除职工
        system.deleteEmployee("002");

        //查找职工
        system.searchEmployee("王五");

        //增加薪金
        system.addSalary("001", 1000);

        //降低薪金
        system.reduceSalary("004", 2000);
    }
}

这个程序实现了根据职工编号或职工姓名查找职工信息、增加、删除职工信息、增加、降低职工薪金等基本功能。利用继承实现了职工类别的分类，并通过ArrayList来实现对职工信息的存储和操作。