managertest.java

中国水利水电出版社java程序设计教程,附源码

/**
   @version 1.20 1998-09-17
   @author Cay Horstmann
*/
//ManagerTest.java
//演示Employee和Manager薪金计算区别

import java.util.*;

public class ManagerTest
{  
   public static void main(String[] args)
   {  
      // 创建一个新的经理并设置他的奖金
      Manager boss = new Manager("陈鹏", 80000,
         1987, 12, 15);
      boss.setBonus(5000);

      Employee[] staff = new Employee[3];

      // 建立员工数组和经理一起填充

      staff[0] = boss;
      staff[1] = new Employee("何恒", 50000,
         1989, 10, 1);
      staff[2] = new Employee("童同", 40000,
         1990, 3, 15);

      // print out information about all Employee objects
      for (int i = 0; i < staff.length; i++)
      {  
         Employee e = staff[i];
         System.out.println("name=" + e.getName()
            + ",salary=" + e.getSalary());
      }
   }
}

class Employee
{  
   public Employee(String n, double s,
      int year, int month, int day)
   {  
      name = n;
      salary = s;
      GregorianCalendar calendar
         = new GregorianCalendar(year, month - 1, day);
         // GregorianCalendar 方法计算月份从0开始
      hireDay = calendar.getTime();
   }

   public String getName()
   {
      return name;
   }

   public double getSalary()
   {  
      return salary;
   }

   public Date getHireDay()
   {  
      return hireDay;
   }

   public void raiseSalary(double byPercent)
   {  
      double raise = salary * byPercent / 100;
      salary += raise;
   }

   private String name;
   private double salary;
   private Date hireDay;
}

class Manager extends Employee
{  
   /**
      变量n是员工姓名
      变量  s t员工工资
      填充工龄的年、月、日
   */
   public Manager(String n, double s,
      int year, int month, int day)
   {  
      super(n, s, year, month, day);
      bonus = 0;
   }

   public double getSalary()
   { 
      double baseSalary = super.getSalary();
      return baseSalary + bonus;
   }

   public void setBonus(double b)
   {  
      bonus = b;
   }

   private double bonus;
}