Java 6 Illuminated: An Active Learning Approach, 2nd Edition

10.2 Inheritance Design 667

constructor is running. Similarly, when we construct the c2 object, the

BankAccount overloaded constructor runs, then we print a message from

the CheckingAccount overloaded constructor.

Table 10.2 summarizes the inheritance rules for constructors.

10.2.3 Adding Specialization to the Subclass

At this point, our CheckingAccount class provides no more functionality

than the BankAccount class. But our purpose for defining a CheckingAc-

count class was to provide support for a specialized type of bank account.

To add specialization to our CheckingAccount subclass, we define new fields

and methods. For example, we can define a