In-Class

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In-Class

A small in-class quiz following our lecture.

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What is the difference between composition and inheritance?

1 point

composition is a 'is-a' relationship, and inheritance is a 'has-a' relationship

composition is a 'has-a' relationship, and inheritance is a 'is-a' relationship

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If a Triangle is derived from a Shape, is the triangle or the shape the base class? *

1 point

The triangle is the base class

The shape is the base class because it is 'higher' on the inheritance tree. You can think of it like a family tree if that is helpful to understand inheritance.

What is a pure virtual function? *

1 point

It is a member function in a class that must be implemented by a derived class

It is a member funtion in a class that you can optionally implement in a derived class.

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