Major Assignment 3 due June 28, 2009

From 10.6

Create a GUI to add workers, hours and determine their salary.

Write a superclass Worker and subclasses HourlyWorker and SalariedWorker. Every worker has a name and a salary rate. Write a method computePay(int hours) that computes the weekly pay for every worker. An hourly worker gets paid the hourly wage for the actual number of hours worked, if hours is at most 40. If the hourly worker worked more than 40 hours, the excess is paid at time and a half. The salaried worker gets paid the hourly wage for 40 hours, no matter what the actual number of hours is. Supply a test program that uses polymorphism to test these classes and methods.

Also use the following class as your tester class: /**
This class tests class Worker and its subclasses.
*/
public class WorkerTester
{
public static void main(String[] args)
{
Worker s = new SalariedWorker(''Sally'', 40);
Worker h = new HourlyWorker(''Harry'', 40);
System.out.println(s.computePay(30));
System.out.println(''Expected: 1600'');
System.out.println(h.computePay(30));
System.out.println(''Expected: 1200'');
System.out.println(s.computePay(50));
System.out.println(''Expected: 1600'');
System.out.println(h.computePay(50));
System.out.println(''Expected: 2200'');
}
}