5.1.2.1 Exercise Inheritance | COMP.CS.140 Ohjelmointi 3: Rajapinnat ja tekniikat

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Question 1 2 points

Is-a -relationship means that a subclass object

is also a base class object in its behaviour

is a part of the base class implementation

consists of base class objects

Question 2 4 points

In inheritance “a subclass object is also a base class object” means

the functionality of subclass objects is always the same as base class objects’

the interface of subclass objects is the same as base class objects’

the subclass can handle the internal implementation of the base class directly

Question 3 4 points

Polymorphism

makes the program more complicated

makes it possible to refer to objects of different types with a common name with the help of their base class

requires that the exact type of the object must always be known

Earned points

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