Java-工资支出的总薪水

Company类

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

CompanySalary类

public class CompanySalary {
	public static void main(String[] args) {
		Employee[] employee=new Employee[29];
		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.salariedPay()+"元");
	}
}

Employee类

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

MonthWorker类

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

}

WeekWorker类

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

}

YearWorker类

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

}