We want to change the BankAccount class so that all accounts will have a monthly fee.Which of the following will properly define the instance variable monthlyFee that holds the monthly fee?
A)monthlyFee: double;
B)instance var monthlyFee;
C)private double monthlyFee;
D)private field monthlyFee;

Question

Quizplus · Accepted Answer

The best choice is C because it declares the instance variable as private and of type double, which is necessary for holding the monthly fee as a decimal value. It also follows proper naming conventions for variables in Java. Option A is not technically incorrect, but it is missing the access modifier and could potentially be accessed from outside the class. Option B is not valid syntax in Java. Option D is not a valid syntax in Java and does not properly declare the variable type.

We Want to Change the BankAccount Class So That All