08 - PayCalculator < > PayCalculator -payRate:double +getPay(double hours): double +changeRate(double newRate): void RegularPay (no instance variables) (no methods) HazardPay (no instance variables) +getPay(double hours): double Create an abstract class PayCalculator that has an attribute payRate given in dollars per hour. The class should also have a method computePay(hours) that returns the pay for a given amount of time. Derive a class RegularPay from PayCalculator, as described above. It should have a constructor that has a parameter for the pay rate. It should not override any of the methods. Then derive a class HazardPay from PayCalculator that overrides the computePay method. The new method should return the amount returned by the base class method multiplied by 1.5.