2000Fall

5 50 5hb ib b b 5b readfile

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Unformatted text preview: rker karen = new HourlyWorker(“Karen Price”, 13.75, 40); staff[0] = john; staff[1] = sue; staff[2] = karen; for (int i=0; i<3; i++) { staff[i].calculateEarnings(); staff[i].print(); } } } Ans: public abstract class Employee { private String employeeName; public abstract double calculateEarnings(); } public class Boss extends Employee{ private double weeklySalary; public double calculateEarnings() { return weeklySalary; } }   public class CommissionWorker extends Employee { private double salary; private double commission; private int quantity; public double calculateEarnings() { return salary + commission*quantity; } } public class HourlyWorker extends Employee { private double wage; // wage per hour private double hours; // hours worked for week public double calculateEarnings() { return wage * ho...
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