1z0-808 Exam Question 61

Given the following two classes:

How should you write methods in the ElectricAccount class at line n1 so that the member variable bill is always equal to the value of the member variable kwh multiplied by the member variable rate?
Any amount of electricity used by a customer (represented by an instance of the customer class) must contribute to the customer's bill (represented by the member variable bill) through the method useElectricity method. An instance of the customer class should never be able to tamper with or decrease the value of the member variable bill.
  • 1z0-808 Exam Question 62

    Given: What is the result?
  • 1z0-808 Exam Question 63

    Given:

    What is the result?
  • 1z0-808 Exam Question 64

    Given:

    What is the result?
  • 1z0-808 Exam Question 65

    Given:

    What is the result?