Java第十六次作业

Cola公司的雇员分为以下若干类：(知识点：多态)

(1) ColaEmployee ：这是所有员工总的父类。
属性：员工的姓名,员工的生日月份。
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。

package date519;

public class ColaEmployee {
    String name;
    int month;

    public ColaEmployee() {
    }

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

    public double getSalary(int month) {
        return 0;
    }
}

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

属性：月薪。

package date519;

public class SalariedEmployee extends ColaEmployee {
    double monthSalary;

    public SalariedEmployee(String name, int month, double monthSalary) {
        super(name, month);
        this.monthSalary = monthSalary;
    }

    public double getSalary(int month) {
        if (super.month == month) {
            return monthSalary + 100;
        } else {
            return monthSalary;
        }
    }
}

(3) HourlyEmployee ：ColaEmployee 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。
属性：每小时的工资、每月工作的小时数。

package date519;

public class HourlyEmployee extends ColaEmployee {
    double hoursalary;
    int hour;

    public HourlyEmployee(String name, int month, double hoursalary, int hour) {
        super(name, month);
        this.hoursalary = hoursalary;
        this.hour = hour;
    }

    public double getSalary(int month) {
        if (super.month == month) {
            if (hour <= 160) {
                return month * hoursalary + 100;
            } else {
                return month * hoursalary + (hour - 160) * hoursalary * 1.5 + 100;
            }
        } else {
            if (hour <= 160) {
                return month * hoursalary;
            } else {
                return month * hoursalary + (hour - 160) * hoursalary * 1.5;
            }
        }
    }
}

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

属性：月销售额、提成率。

package date519;

public class SalesEmployee extends ColaEmployee {
    private int monthSales;
    private double royaltyRate;

    public SalesEmployee(String name, int month, int monthSales, double royaltyRate) {
        super(name, month);
        this.monthSales = monthSales;
        this.royaltyRate = royaltyRate;
    }

    public double getSalary(int month) {
        if (super.month == month) {
            return monthSales * royaltyRate + 100;
        } else {
            return monthSales * royaltyRate;
        }
    }
}

(5) 定义一个类Company，在该类中写一个方法，调用该方法可以打印出某月某个员工的工资数额，

写一个测试类TestCompany,在main方法，把若干各种类型的员工放在一个ColaEmployee 数组里，

并单元出数组中每个员工当月的工资。

package date519;

public class Company {
    public void getsalary(ColaEmployee c, int month) {
        System.out.println(c.name + "在" + c.month + "的月薪为" + c.getSalary(month) + "元");
    }

    public static void main(String[] args) {
        ColaEmployee[] c = { new SalariedEmployee("月薪员工", 6, 3500), new HourlyEmployee("时薪员工", 8, 16, 360),
                new SalesEmployee("销售员工", 9, 188, 30), };
        for (int i = 0; i < c.length; i++) {
            new Company().getsalary(c[i], 5);
        }
    }
}