java如何设计一个员工类employee？

public class Employee{    private String name//姓名    private int salary//薪水

public Employee()

{

//无参构造函数    }

public Employee(String name,int  salary)

{        //有参构造函数        this.name=name

this.salary=salary        //局部变量若与类变量同名,则以局部变量为准,类变量需要用this引用    }

public void setName(String name){

this.name=name    }

public String getName()

{        return this.name

}

public void setSalary(int salary)

{        this.salary=salary    }

public int getSalary()

{        return this.salary    }}

//测试类

public class Test()

{    public static void main(String args[])

{        Employee e = new Employee("张三",1200)

System.out.println(e.getName())//输出姓名

System.out.println(e.getSalary())//输出薪水

Employee e2= new Employee()

e2.setName("李四")

e.setSalary(1000)

System.out.println(e2.getName())//输出姓名

System.out.println(e2.getSalary())//输出薪水    }

}

*运行结果

张三

1200

李四

1000

*

#include <cmath>

#include <cstdio>

#include <vector>

#include <iostream>

#include <algorithm>

#include <string>

using namespace std

class Employee{

string name

public:

Employee(string nm)

{

name=nm

}

virtual string getName()

{

return name

}

virtual void Display()

{

cout<<"my name is "<<getName()<<", my earing is "<<Earnings()<<endl

}

virtual float Earnings()=0

}

class Boss:public Employee{

public:

Boss():Employee("Boss")

{

}

float Earnings()

{

return 8000

}

}

class HourlyWorker:public Employee{

int Hours

public:

HourlyWorker(int h):Employee("HourlyWorker"){

Hours=h

}

float Earnings()

{

return Hours*100

}

}

class SaleWorker:public Employee{

float sales

public:

SaleWorker(float sals):Employee("SaleWorker")

{

sales=sals

}

float Earnings()

{

return sales*0.05

}

}

int main() {

Employee * emps[3]

emps[0]=new Boss()

emps[1]=new HourlyWorker(100)

emps[2]=new SaleWorker(1000000)

for (int i=0i<3i++)

{

emps[i]->Display()

}

for (int i=0i<3i++)

{

delete emps[i]

}

return 0

}

首先设置一个静态的变量

然后设置id变量

然后在构造方法在让这个静态变量自曾 然后把这个静态变量的值赋给id变量 这样每一个新员工都会有一个自己员工号

class Employee{

private String number

private String name

private String birthday

private int ID

static int IDnumber

public Employee(String number,String name,String birthday){

this.setNumber(number)

this.setName(name)

this.setBirthday(birthday)

IDnumber++

ID=IDnumber

}

public void setNumber(String number){

this.number=number

}

public String getNumber(){

return number

}

public void setName(String name){

this.name=name

}

public String getName(){

return name

}

public void setBirthday(String birthday){

this.birthday=birthday

}

public String getBirthday(){

return birthday

}

}

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