Inheritance
One of the most powerful features of OO programming is, perhaps, code reuse. Structured design provides code reuse to a certain extent—you can write a procedure and then use it as many times as you want. However, OO design goes an important step further, allowing you to define relationships between classes that facilitate not only code reuse, but also better overall design, by organizing classes and factoring in commonalties of various classes. Inheritance is a primary means of providing this functionality.
Inheritance allows a class to inherit the attributes and methods of another class. This allows creation of brand-new classes by abstracting out common attributes and behaviors.
One of the major design issues in OO programming is ...
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