【java】计算员工工资

【案例介绍】

1. 任务描述

某公司有多个部门，员工信息包含姓名 name、类型 type、部门 department 和底薪

basicSalary，其中员工的类型有三种：管理员、销售员和工人。

公司财务部门工作人员每月要计算员工的实发工资。

实发工资 = 月收入 – 应缴个人所得税。

其中：

（ 1）月收入计算方法是根据类型来决定的：

 管理员：月收入=底薪+奖金 bonus

 销售员：月收入=底薪+销售额 salesAmount * 提成率 rate

 工人：月收入=底薪+加班费 overtimePay

（2）应缴个人所得税的方法是统一的，根据月收入扣除不同比例的所得税：

 月收入⩽5000 元，所得税： 0 元。

 5000<月收入⩽15000，所得税： 月收入*5%。

 15000<月收入，所得税：月收入*20%。

要求编写 5 个类，分别是：员工的抽象类 Employee、管理员类 Admin、销售员
类 Salesman 和工人类 Worker，并编写用于测试的演示类 SalayDemo。

要求这这些类都放在 cn.edu.gpnu.company 包中。

【案例目标】

 学会分析“计算员工工资”任务实现的逻辑思路。

 能够独立完成“计算员工工资”程序的源代码编写、编译以及运行。

 掌握 Java 中的继承的知识点。

 掌握抽象类、抽象方法的编写与使用。

【运行结果】

【运行代码】
1.

package cn.edu.gpnu.bank.company;

class Admin extends Employee {
    double bonus;

    public Admin(String name, String type, String department, double basicSalary, double bonus) {
        super(name, type, department, basicSalary);
        this.bonus = bonus;
    }

    public double getBonus() {
        return bonus;
    }

    public void setBonus(double bonus) {
        this.bonus = bonus;
    }

    public double getIncome(){
        return (getBasicSalary()+getBonus());
    }
}

package cn.edu.gpnu.bank.company;

abstract public class Employee {
    String name;
    String type;
    String department;
    double basicSalary;

    public Employee(String name, String type, String department, double basicSalary) {
        this.name = name;
        this.type = type;
        this.department = department;
        this.basicSalary = basicSalary;
    }

    public String getName() {
        return name;
    }

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

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getDepartment() {
        return department;
    }

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

    public double getBasicSalary() {
        return basicSalary;
    }

    public void setBasicSalary(double basicSalary) {
        this.basicSalary = basicSalary;
    }

    abstract public double getIncome();

    public double getTax(){
        double income = getIncome();
        if(income<=5000)
        {
            return 0;
        }
        if(income>5000 && income<=15000)
        {
            return income*0.05;
        }
        else
        {
            return income * 0.2;
        }
    }

    public String info(){
        return"姓名："+this.name+",类型："+this.type+"，部门："+this.department
                +",月收入："+getIncome()+"元,所得税："+getTax()+"元,实发工资："
                +(getIncome()-getTax())+"元";

    }


}

package cn.edu.gpnu.bank.company;

class Salesman extends Employee {
    double saleAmount;
    double rate;

    public Salesman(String name, String type, String department, double basicSalary, double saleAmount, double rate) {
        super(name, type, department, basicSalary);
        this.saleAmount = saleAmount;
        this.rate = rate;
    }

    public double getSaleAmount() {
        return saleAmount;
    }

    public void setSaleAmount(double saleAmount) {
        this.saleAmount = saleAmount;
    }

    public double getRate() {
        return rate;
    }

    public void setRate(double rate) {
        this.rate = rate;
    }

    public double getIncome() {
        return (getBasicSalary()+getSaleAmount()*getRate());
    }
}

package cn.edu.gpnu.bank.company;

class Worker extends Employee {
    double overtimePay;

    public Worker(String name, String type, String department, double basicSalary, double overtimePay) {
        super(name, type, department, basicSalary);
        this.overtimePay = overtimePay;
    }

    public double getOvertimePay() {
        return overtimePay;
    }

    public void setOvertimePay(double overtimePay) {
        this.overtimePay = overtimePay;
    }

    public double getIncome() {
        return (getBasicSalary()+getOvertimePay());
    }
}

package cn.edu.gpnu.bank.company;

public class SalayDemo {
    public static void main(String[] args) {
        Admin admin = new Admin("张三", "管理员",
                "研发部", 14000, 5600);

        Salesman salesman = new Salesman("李四", "销售员",
                "天河销售部", 6000, 98900, 0.03);

        Worker worker = new Worker("王五", "工人",
                "南沙制造场", 2500, 1350);

        System.out.println(admin.info());
        System.out.println(salesman.info());
        System.out.println(worker.info());

    }
}