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?
The variable earnings in the calculateEarnings method is a local variable.