Payable interface and polymorphism

Problem

Write an interface Payable with one method double pay().

Write two classes implementing it:

HourlyWorker(String name, double hours, double rate) — pay() returns hours * rate, and hours above 40 are paid 1.5 times;
SalariedWorker(String name, double monthly) — pay() returns monthly.

PayrollApp reads: the hourly worker's name, hours and rate, then the salaried worker's name and monthly salary. It puts both in a Payable[] array, prints each pay with two decimals as name: 1000.00, then the total as Total: 3000.00.

Your solution

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