Java: An Introduction to Problem Solving and Programming, 8th Edition

8.2 Programming with Inheritance

You do not have to die in order to pass along your inheritance.

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This section presents some basic programming techniques you need when defining or using derived classes.

Constructors in Derived Classes

A derived class, such as the class Student in Listing 8.2, has its own constructors. It does not inherit any constructors from the base class. A base class, such as Person, also has its own constructors. In the definition of a constructor for the derived class, the typical first action is to call a constructor of the base class. For example, consider defining a constructor for the class Student. One thing that needs to be initialized is the student’s name. Since the instance variable ...