Create a base$-$class Worker and derived$-$classes HourlyWorker and SalariedWorker. Every worker has a name and a salary rate. Write a method computerPay$($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 twice the salary rate. The salaried worker gets paid the hourly wage for $40$ hours, no matter what the actual number of hours is$.$ Write a main function to test these classes and method