1.3. Inheritance and Polymorphism

Try these first

1. 1.

   What is inheritance in programming?

   Hint

   Think of family traits.

2. 2.

   Define polymorphism.

   Hint

   It relates to the Greek word meaning many shapes.

3. 3.

   What is inheritance?

   • A way to share variables
   • A method for acquiring properties of a class
   • A method of coding style

   Hint

   Think of it as passing traits down.

4. 4.

   True or False: Polymorphism allows the same method to behave differently based on the object.

   • True
   • False

   Hint

   Remember the shape analogy.

5. 5.

   Design a simple class hierarchy involving a base class Person and derived classes Student and Teacher. Describe their interrelations and illustrate how inherited methods can be overridden.

   Hint

   Consider how each derived class can extend from the base class while modifying behavior.

6. 6.

   Create a scenario involving an interface that utilizes polymorphism. Describe a Shape interface and implement it in classes Circle, Rectangle, and Triangle, ensuring that the area method is polymorphic.

   Hint

   Think about how the concept of shape can yield different results through the same method call.