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The class Worker is defined below. The class includes the method getEarnings, which is intended to return the total amount earned by the worker.public class Worker{private double hourlyRate;private double hoursWorked;private double earnings;public Worker(double rate, double hours){hourlyRate = rate;hoursWorked = hours;}private void calculateEarnings(){double earnings = 0.0;earnings += hourlyRate * hoursWorked;}public double getEarnings(){calculateEarnings();return earnings;}}The following code segment appears in a method in a class other than Worker. The code segment is intended to print the value 800.0, but instead prints a different value because of an error in the Worker class.Worker bob = new Worker(20.0, 40.0);System.out.println(bob.getEarnings());Which of the following best explains why an incorrect value is printed?

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