// Fig. 11.6: HourlyEmployee.cs
// HourlyEmployee class that extends Employee.
public class HourlyEmployee : Employee
{
   private decimal wage; // wage per hour
   private decimal hours; // hours worked for the week

   // five-parameter constructor
   public HourlyEmployee( string first, string last, string ssn,
      decimal hourlyWage, decimal hoursWorked )
      : base( first, last, ssn )
   {
      Wage = hourlyWage; // validate hourly wage via property
      Hours = hoursWorked; // validate hours worked via property
   } // end five-parameter HourlyEmployee constructor

   // property that gets and sets hourly employee's wage
   public decimal Wage
   {
      get
      {
         return wage;
      } // end get
      set
      {
         wage = ( value >= 0 ) ? value : 0; // validation
      } // end set
   } // end property Wage

   // property that gets and sets hourly employee's hours
   public decimal Hours
   {
      get
      {
         return hours;
      } // end get
      set
      {
         hours = ( ( value >= 0 ) && ( value <= 168 ) ) ?
                 value : 0; // validation
      } // end set
   } // end property Hours

   // calculate earnings; override Employee's abstract method Earnings 
   public override decimal Earnings()
   {
      if ( Hours <= 40 ) // no overtime
         return Wage * Hours;
      else
         return ( 40 * Wage ) + ( ( Hours - 40 ) * Wage * 1.5M );
   } // end method Earnings

   // return string representation of HourlyEmployee object
   public override string ToString()
   {
      return string.Format( 
         "hourly employee: {0}\n{1}: {2:C}; {3}: {4:F2}",
         base.ToString(), "hourly wage", Wage, "hours worked", Hours );
   } // end method ToString
} // end class HourlyEmployee


/**************************************************************************
 * (C) Copyright 1992-2006 by Deitel & Associates, Inc. and               *
 * Pearson Education, Inc. All Rights Reserved.                           *
 *                                                                        *
 * DISCLAIMER: The authors and publisher of this book have used their     *
 * best efforts in preparing the book. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these books. The authors *
 * and publisher shall not be liable in any event for incidental or       *
 * consequential damages in connection with, or arising out of, the       *
 * furnishing, performance, or use of these programs.                     *
 *************************************************************************/