(Payroll System Modification) Modify the payroll system of Figs. 20.9–20.17 to includeadditional Employee subclasses PieceWorker and HourlyWorker. A PieceWorker represents an employee whose pay is based on the number of pieces of merchandise produced. An HourlyWorker represents an employee whose pay is based on an hourly wage and the number of hours worked. Hourlyworkers receive overtime pay (1.5 times the hourly wage) for all hours worked in excess of 40 hours.Class PieceWorker should contain private instance variables wage (to store the employee’swage per piece) and pieces (to store the number of pieces produced). Class HourlyWorker shouldcontain private instance variables wage (to store the employee’s wage per hour) and hours (to storethe hours worked). In class PieceWorker, provide a concrete implementation of method earningsthat calculates the employee’s earnings by multiplying the number of pieces produced by the wageper piece. In class HourlyWorker, provide a concrete implementation of method earnings that calculates the employee’s earnings by multiplying the number of hours worked by the wage per hour.If the number of hours worked is over 40, be sure to pay the HourlyWorker for the overtime hours.Add a pointer to an object of each new class into the vector of Employee pointers in main. For eachEmployee, display its string representation and earnings.
(Payroll System Modification) Modify the payroll system of Figs. 20.9–20.17 to include
additional Employee subclasses PieceWorker and HourlyWorker. A PieceWorker represents an employee whose pay is based on the number of pieces of merchandise produced. An HourlyWorker represents an employee whose pay is based on an hourly wage and the number of hours worked. Hourly
workers receive overtime pay (1.5 times the hourly wage) for all hours worked in excess of 40 hours.
Class PieceWorker should contain private instance variables wage (to store the employee’s
wage per piece) and pieces (to store the number of pieces produced). Class HourlyWorker should
contain private instance variables wage (to store the employee’s wage per hour) and hours (to store
the hours worked). In class PieceWorker, provide a concrete implementation of method earnings
that calculates the employee’s earnings by multiplying the number of pieces produced by the wage
per piece. In class HourlyWorker, provide a concrete implementation of method earnings that calculates the employee’s earnings by multiplying the number of hours worked by the wage per hour.
If the number of hours worked is over 40, be sure to pay the HourlyWorker for the overtime hours.
Add a pointer to an object of each new class into the
Employee, display its string representation and earnings.
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