(1) Employee：这是所有员工总的父类。

① 属性：员工的姓名,员工的生日月份

② 方法：getSalary(int month) 根据参数月份来确定工资，如果该月员工过生日，则公司会额外奖励 100 元。

(2) SalariedEmployee：Employee 的子类，拿固定工资的员工。

① 属性：月薪。

(3)HourlyEmployee：Employee 的子类，按小时拿工资的员工，每月工作超出160 小时的部分按照1.5倍工资发放。

① 属性：每小时的工资、每月工作的小时数。

(4) SalesEmployee：Employee 的子类，销售，工资由月销售额和提成率决定。

① 属性：月销售额、提成率。

(5) BasePlusSalesEmployee：SalesEmployee 的子类，有固定底薪的销售人员，工资由底薪加上销售提成部分。

① 属性：底薪。

本题要求根据上述雇员分类，编写一个程序，实现以下功能：

（1）创建一个 Employee 数组，分别创建若干不同的 Employee 对象，并打印某个月的工资。

（2）每个类都完全封装，不允许非私有化属性

代码如下：

父类：

abstract class Employee {
    private String name;
    private int month;

    public Employee(String name, int month) {
        this.name = name;
        this.month = month;
    }

    public String getName() {
        return name;
    }

    public int getMonth() {
        return month;
    }

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

    public void setMonth(int month) {
        this.month = month;
    }

    public double getSalary(int month) {
        double salary = 0;
        if (this.month == month) {
            salary += 100;
        }
        return salary;
    }
}

固定工资的员工：

class SalariedEmployee extends Employee  {
    private double monthsalary;//月薪
    public SalariedEmployee (String name,int month,double monthsalary){
        super(name,month);
        this.monthsalary =monthsalary ;
    }

    public double getMonthsalary() {
        return monthsalary;
    }

    public void setMonthsalary(double monthsalary) {
        this.monthsalary = monthsalary;
    }

    public double getSalary(int month){
       return monthsalary+super.getSalary(month);
    }
}

按小时拿工资的员工：

public class HourlyEmployee extends Employee {private double hourlysalary;//每小时工资private double monthhourly;//每月小时数public HourlyEmployee (String name,int month,double monthhourly ,double hourlysalary ){super(name,month);this.hourlysalary =hourlysalary ;this.monthhourly =monthhourly ;}public double getHourlysalary() {return hourlysalary;}public void setHourlySalary(double hourlysalary) {this.hourlysalary = hourlysalary;}public double getMonthhourly() {return monthhourly;}public void setMonthhourly(double monthhourly) {this.monthhourly = monthhourly;}public double getSalary(int month) {double salary = 0;if (monthhourly  > 160) {salary = (160 + (monthhourly  - 160) * 3/2) * hourlysalary ;} else {salary = month  * hourlysalary ;}return salary + super.getSalary(month);}
}

销售人员：

public class SalesEmployee extends Employee {private double salasmonth;//月销售额private double commmissionrate;//提成率public SalesEmployee (String name,int month,double salasmonth ,double commmissionrate ){super(name,month);this.commmissionrate =commmissionrate ;this.salasmonth =salasmonth ;}public double getSalasmonth() {return salasmonth;}public double getCommmissionrate() {return commmissionrate;}public void setSalasmonth(double salasmonth) {this.salasmonth = salasmonth;}public void setCommmissionrate(double commmissionrate) {this.commmissionrate = commmissionrate;}@Overridepublic double getSalary(int month) {return commmissionrate *salasmonth +super.getSalary(month);}
}

固定底薪的销售员（销售人员的子类）：

public class BasePlusSalesEmployee extends SalesEmployee {private double basesalary;//底薪public BasePlusSalesEmployee (String name,int month,double basesalary,double salasmonth ,double commmissionrate ){super(name,month,salasmonth ,commmissionrate );this.basesalary =basesalary ;}public double getBasesalary() {return basesalary;}public void setBasesalary(double basesalary) {this.basesalary = basesalary;}@Overridepublic double getSalary(int month) {return basesalary +super .getSalary(month);}
}

测试类：

public class Texe {public static void main(String[] args) {Employee stu[]={new SalariedEmployee("李四",7,5000),new HourlyEmployee("张三",8,20,260),new SalesEmployee("王二",7,8000,0.2),new BasePlusSalesEmployee("赵六",9,2000,6000,0.1)};System .out .println("七月份工资：");for(int i=0;i< stu.length ;i++){System .out.println("姓名："+stu[i].getName()+"   生日月份："+stu[i].getMonth()+"     工资为："+  stu[i].getSalary(7));}}

调试结果图：