【1】编写实现一个名为Person的类和它的子类Employee，Employee有两个子类Faculty和Staff。 具体要求如下： [1].Person类中的属性有：姓名name（String类型），地址address（String类型），电话号码telphone（String类型）和电子邮件地址email（String类型）； [2].Employee类中的属性有：办公室office（String类型），工资wage（double类型），受雇日期hiredate（String类型）； [3].Faculty类中的属性有：学位degree（String类型），级别level（String类型）； Staff类中的属性有：职务称号duty（String类型）。

[4].Person类应该有一个无参的构造函数，一个带有全部属性的构造函数以及getters/setters方法；

[5].Employee类应该有一个无参的构造函数、一个带有全部属性的构造函数以及getters/setters方法；

[6].Faculty类应该有一个无参的构造函数、一个带有全部属性的构造函数以及getters/setters方法；

[7].Staff类应该有一个无参的构造函数、一个带有全部属性的构造函数以及getters/setters方法；

[8].Person类还应该有一个toString()方法，用于描述一个Person对象的信息；

[9].Employee类还应该有一个toString()方法，用于描述一个Employee对象的信息；

[10].Faculty类还应该有一个toString()方法，用于描述一个Faculty对象的信息；

[11].Staff类还应该有一个toString()方法，用于描述一个Staff对象的信息。

以下是代码实现：

public class Person {
    private String name;
    private String address;
    private String telephone;
    private String email;

    public Person() {}

    public Person(String name, String address, String telephone, String email) {
        this.name = name;
        this.address = address;
        this.telephone = telephone;
        this.email = email;
    }

    public String getName() {
        return name;
    }

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

    public String getAddress() {
        return address;
    }

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

    public String getTelephone() {
        return telephone;
    }

    public void setTelephone(String telephone) {
        this.telephone = telephone;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String toString() {
        return "Name: " + this.getName() + ", Address: " + this.getAddress() + ", Telephone: " +
                this.getTelephone() + ", Email: " + this.getEmail();
    }
}

public class Employee extends Person {
    private String office;
    private double wage;
    private String hiredate;

    public Employee() {}

    public Employee(String name, String address, String telephone, String email, String office, double wage, String hiredate) {
        super(name, address, telephone, email);
        this.office = office;
        this.wage = wage;
        this.hiredate = hiredate;
    }

    public String getOffice() {
        return office;
    }

    public void setOffice(String office) {
        this.office = office;
    }

    public double getWage() {
        return wage;
    }

    public void setWage(double wage) {
        this.wage = wage;
    }

    public String getHiredate() {
        return hiredate;
    }

    public void setHiredate(String hiredate) {
        this.hiredate = hiredate;
    }

    public String toString() {
        return super.toString() + ", Office: " + this.getOffice() + ", Wage: " + this.getWage() + ", Hiredate: " + this.getHiredate();
    }
}

public class Faculty extends Employee {
    private String degree;
    private String level;

    public Faculty() {}

    public Faculty(String name, String address, String telephone, String email, String office, double wage, String hiredate,
                   String degree, String level) {
        super(name, address, telephone, email, office, wage, hiredate);
        this.degree = degree;
        this.level = level;
    }

    public String getDegree() {
        return degree;
    }

    public void setDegree(String degree) {
        this.degree = degree;
    }

    public String getLevel() {
        return level;
    }

    public void setLevel(String level) {
        this.level = level;
    }

    public String toString() {
        return super.toString() + ", Degree: " + this.getDegree() + ", Level: " + this.getLevel();
    }
}

public class Staff extends Employee {
    private String duty;

    public Staff() {}

    public Staff(String name, String address, String telephone, String email, String office, double wage, String hiredate,
                 String duty) {
        super(name, address, telephone, email, office, wage, hiredate);
        this.duty = duty;
    }

    public String getDuty() {
        return duty;
    }

    public void setDuty(String duty) {
        this.duty = duty;
    }

    public String toString() {
        return super.toString() + ", Duty: " + this.getDuty();
    }
}