第十一周作业

4、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。

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

• 属性：月薪

(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

(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

(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 goy;
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;
    }
}


package goy;
public class SalariedEmployee extends ColaEmployee {
    double salary;

    public SalariedEmployee(String name,int month,double salary) {
        super(name,month);
        this.salary=salary;
    }
    public double getSalary(int month) {
        if (super.month==month) {
            return salary +100;
        }else {
            return salary;
        }    
    }
}


package goy;
public class HourlyEmployee extends ColaEmployee{
     private int wage;
     private int hourNum;     
     public HourlyEmployee(String name, int month,int wage,int hourNum) {
         super(name,month);
         this.wage=wage;
         this.hourNum=hourNum;
     }
     public double getSalary(int month) {
         if(super.month==month) {
             if (hourNum>160) {
                 return wage*160+wage*(hourNum-160)*1.5+100;
                 }else {
                     return wage*hourNum+100;
                     }
             }else {
                 if (hourNum>160) {
                     return wage*160+wage*(hourNum-160)*1.5;
                     }else {
                         return wage*hourNum;
                     }
             }
     }
}


package goy;
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;
       }
   }    
}


package goy;
public class Company {
    public void getSalary(ColaEmployee c,int month) {
        System.out.println(c.name + " 在" + month + "月的月工资数额为 " + c.getSalary(month)+"元");
   }
}


package goy;
public class TestCompany {
    public static void main(String[] args) {
        ColaEmployee[] m = {
                new SalariedEmployee("合同工", 6, 35000),
                new HourlyEmployee("小时工", 5, 100, 300),
                new SalesEmployee("销售", 3, 7000000, 0.3)
                };
        for (int i = 0; i < m.length; i++) {
            new Company().getSalary(m[i],8);
        }
    }
}