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 cola;

public abstract class ColaEmployee {
    String name;
    int  month ;
    int  day ;
    int  year;
    public ColaEmployee() {
        
    }

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

    abstract double getSalary(int month);
    

}

package cola;

public class SalariedEmployee extends ColaEmployee{
    double salary;

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

}

package cola;

public class HourlyEmployee extends ColaEmployee{
    double hsalary;
    int h;    

    public HourlyEmployee() {
        
    }
    public HourlyEmployee(String name, int month, int day,
 int year,double hsalary,int h) {
        super(name, month, day, year);
        this.hsalary=hsalary;
        this.h=h;
    }
    @Override
    double getSalary(int month) {
        double salary=0;
        if(h>160) {
            salary=160*hsalary+(h-160)*hsalary*1.5;
        }else {
            salary=h*hsalary;
        }
        if(month==this.month) {
            salary+=100;
        }
        return salary;
    }
    
}

package cola;

public class SalesEmployee extends ColaEmployee {
    double msalary;//月售
    double t; //提成

    public SalesEmployee() {
        
    }
    public SalesEmployee(String name, int month, int day, int year,double msalary,double t) {
        super(name, month, day, year);
        this.msalary=msalary;
        this.t=t;
    }
    @Override
    double getSalary(int month) {
        double salary=msalary*t;
        if(month==this.month) {
            salary+=100;
        }
        return salary;
    }    

}

package cola;

public class Company {

    public static void getSalary(int month,ColaEmployee c) {
        System.out.println(month+"月"+c.name+"的工资是: "+c.getSalary(month));
        
    }

}

package cola;

public class TestCompany {
    public static void main(String[] args) {
        ColaEmployee[] a=new ColaEmployee[3];
        a[0]=new SalariedEmployee("小红",5,26,1999,3500);
        a[1]=new HourlyEmployee("小海",7,20,1998,300,6);
        a[2]=new SalesEmployee("小白",6,14,1997,20000,0.2);
        for(ColaEmployee c:a) {
            Company.getSalary(5, c);
        }
    }

}