javaeclipse中（2）Employee类中的属性有：办公室office（String类型），工资wage（double类型） ，创建showemployee方法用于显示本类中的office和wage属性值。创建其构造方法，为这二个属性进行赋值。（ 但是子类的构造方法在执行时需要先执行父类的构造方法，此时该 怎么处理，由大家想办法、讨论出一个可行的方法。）

好的，我来为您演示一下：

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

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

    public void showEmployee() {
        System.out.println("Office: " + office);
        System.out.println("Wage: " + wage);
    }
}

在这个类中，我们新增了两个属性：办公室和工资。我们也定义了一个构造方法，用于初始化这两个属性，并调用父类的构造方法。这里的调用父类的构造方法，我们使用了super关键字来实现。

我们还新增了一个showEmployee方法，用于显示本类中的office和wage属性值。注意，这里我们没有调用父类的showInfo方法，因为这个方法只显示了Person类中的属性信息，而我们需要显示Employee类中的属性信息。

希望这个演示能够帮助到您！

相关问题

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）； （4）Staff类中的属性有：职务称号duty（String类型）；Python、代码

以下是Python中实现Person、Employee、Faculty和Staff类的代码：

class Person:
    def __init__(self, name, address, telphone, email):
        self.name = name
        self.address = address
        self.telphone = telphone
        self.email = email


class Employee(Person):
    def __init__(self, name, address, telphone, email, office, wage, hiredate):
        super().__init__(name, address, telphone, email)
        self.office = office
        self.wage = wage
        self.hiredate = hiredate


class Faculty(Employee):
    def __init__(self, name, address, telphone, email, office, wage, hiredate, degree, level):
        super().__init__(name, address, telphone, email, office, wage, hiredate)
        self.degree = degree
        self.level = level


class Staff(Employee):
    def __init__(self, name, address, telphone, email, office, wage, hiredate, duty):
        super().__init__(name, address, telphone, email, office, wage, hiredate)
        self.duty = duty

使用方法：

person = Person("Tom", "123 Main St.", "555-1234", "tom@email.com")
employee = Employee("John", "456 Oak Ave.", "555-5678", "john@email.com", "A101", 50000, "01/01/2022")
faculty = Faculty("Mary", "789 Pine Rd.", "555-9876", "mary@email.com", "B202", 70000, "01/01/2021", "PhD", "Associate")
staff = Staff("Bob", "321 Elm St.", "555-4321", "bob@email.com", "C303", 40000, "01/01/2020", "Manager")

【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();
    }
}