10.8 Calling Methods and Accessing Properties

Now is probably a good time to recap what we have done so far in this chapter. We have now created a new Swift class named BankAccount. Within this new class we declared some properties to contain the bank account number and current balance together with an initializer and a method to display the current balance information. In the preceding section we covered the steps necessary to create and initialize an instance of our new class. The next step is to learn how to call the instance methods and access the properties we built into our class. This is most easily achieved using dot notation.

Dot notation involves accessing an instance variable, or calling an instance method by specifying a class instance followed by a dot followed in turn by the name of the property or method:

classInstance.propertyName

classInstance.instanceMethod()

For example, to get the current value of our accountBalance instance variable:

var...