Chapter 4. Inheritance: Getting Something for Nothing
For the past three days, you’ve concentrated on learning about the first pillar of object-oriented programming: encapsulation. Although encapsulation is a fundamental concept in OOP, there is more to the story than supporting simple ADTs and modules. In fact, OOP would offer very little over older-style programming if all it did was offer simple encapsulation. Of course, OOP offers much more.
OOP goes further by adding two other features: inheritance and polymorphism. You will spend the next two days considering inheritance, the second pillar of OOP.
Today you will learn
What inheritance is
The different types of inheritance
Some of the pitfalls of inheritance
Tips to effective inheritance
How inheritance ...
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