company05-3——公司支出的总薪水

/* 

* Copyright (c) 2013, 烟台大学计算机学院 

* All rights reserved.

* 文件名称： company05-3——公司支出的总薪水

* 作    者：孙红蕾  

* 完成日期：2013 年 10 月 13 日 

* 问题描述：有一个adstract类，类名为Employee，有子类YearWorker(按年领取薪水)，MonthWorker(按月领取薪水)，WeekWorker(按周领取薪水)。且子类必须重写父类的earnings()方法，给出各自领取报酬的具体方式。

* 输入描述： 无

* 程序输出：  公司薪水总额

* 算法设计：略 

*/  

abstract class Employee {
	public abstract double earnings();
}

public class YearWorker extends Employee {
	public double earnings(){
		return 12000;
	}
}

public class MonthWorker extends Employee {
	public double earnings(){
		return 12*2300;
	}
}

public class WeekWorker extends Employee {
	public double earnings(){
		return 52*780;
	}
}

public class Company {
	Employee[] employee;
	double salaries=0;
	Company(Employee[] employee){
		this.employee=employee;
	}
	public double salariesPay(){
		salaries=0;
		for(int i=0;i<employee.length;i++){
			salaries=salaries+employee[i].earnings();
		}
		return salaries;
	}
}

public class CompanySalary {
	public static void main(String[] args){
		Employee[] employee=new Employee[29];   //公司有29名职员
		//把职员简单的分成三类
		for(int i=0;i<employee.length;i++){
			if(i%3==0)
				employee[i]=new WeekWorker();
			else if(i%3==1)
				employee[i]=new MonthWorker();
			else if(i%3==2)
				employee[i]=new YearWorker();
		}
		Company company=new Company(employee);
		System.out.println("公司薪水总额:"+company.salariesPay()+"元");
	}
}