ManagerTest.java

import java.util.*;

 public class ManagerTest {
    public static void main(String[] args)
    {
       // construct a Manager object
       Manager boss = new Manager("Carl Cracker", 80000, 1987, 12, 15);
      boss.setBonus(5000);

       Employee[] staff = new Employee[3];

       // fill the staff array with Manager and Employee objects

       staff[0] = boss;
       staff[1] = new Employee("Harry Hacker", 50000, 1989, 10, 1);
       staff[2] = new Employee("Tommy Tester", 40000, 1990, 3, 15);

       // print out information about all Employee objects
       for (Employee e : staff)
          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);
        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
   {

      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;