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AP Computer Science A Textbook

1. Primitive Types

2. Using Objects

3. Boolean Expressions and if Statements

4. Iteration

5. Writing Classes

6. Arrays

7. ArrayLists

8. 2D Arrays

9. Inheritance

9.1 Inheritance

Superclasses and Subclasses

The extends keyword

Person Superclass

Vehicle Superclass

High School Student

Check Your Understanding

Exercise: Computers

9.2 Writing Constructors for Subclasses

9.3 Overriding Methods

9.4 super Keyword

9.5 Creating References Using Inheritance Hierarchies

9.6 Polymorphism

9.7 Object Superclass

10. Recursion

Chapter 9

Inheritance

9.1 Inheritance

Superclasses and Subclasses

The extends keyword

Person Superclass

Vehicle Superclass

High School Student

Check Your Understanding

  1. Incorrect Correct No Answer was selected Invalid Answer

Exercise: Computers

Vocabulary

Term Definition
Superclass A parent class that contains common attributes and behaviors used by subclasses (children).
Subclass A child class that inherits attributes and behaviors from a superclass (parent).
Is A A relationship between two items that represent a superclass / subclass relationship
Has A A relationship between two items that represents an instance variable relationship.