Question

怎样计算工资包括年工资,周工资,月工资，用java编写程序

abstract class Employee
{ public abstract double earnings( );}
class YearWorker extends Employee
{【代码1】 // 重写earnings( )方法}
class MonthWorker extends Employee
{【代码2】 // 重写earnings( )方法}
class WeekWorker extends Employee
{【代码3】 // 重写earnings( )方法}
class Company
{Employee[ ] employee;
double salaries=0;
Company(Employee[ ] employee)
{ this.employee=employee; }
public double salariesPay( )
{salaries=0;
【代码4】 // 计算salaries
return salaries; }
}
public class HardWork
{public static void main(String args[ ])
{ Employee[ ] employee=new Employee[20];
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("公司年工资总额:"+company.salariesPay( ) );
}
}

Answer 1

代码一
public double earnings()
{double a=50000.456;
return a;
}
代码二
public double earnings()
{double b=2000;
return 12*b;}
代码三
public double earnings()
{double c=500;
return 52*c;}
代码四
我也正在思考中

Answer 2

你说一下大概的项目描述 还有数据库的数据

一般的一次次的存入数据库并且累加就可以了啊

Answer 3

company的new操作不应该在for中。