1  import java.util.Scanner;

  2  

  3  /**

  4     This program demonstrates polymorphism by applying a method

  5     to objects of different classes.

  6  */

  7  public class SalaryDemo

  8  {

  9     public static void main(String[] args)

 10     {

 11        Employee[] staff = new Employee[3];

 12        staff[0] = new HourlyEmployee("Morgan, Harry", 30);

 13        staff[1] = new SalariedEmployee("Lin, Sally", 52000); 

 14        staff[2] = new Manager("Smith, Mary", 104000, 50);

 15        

 16        Scanner in = new Scanner(System.in);

 17        for (Employee e : staff)

 18        {

 19           System.out.print("Hours worked by " + e.getName() + ": ");

 20           int hours = in.nextInt();

 21           System.out.println("Salary: " + e.weeklyPay(hours));

 22        }

 23     }

 24  }