Class Design

Introducing Class Inheritance

Extending a Class
Applying Class Access Modifiers
Creating Java Objects
Defifing Constructors


Calling Inherited Class Members

Inheriting Methods
Inherited Variables


Creating Abstract Classes

Defifing an Abstract Class
Creating a Concrete Class
Extending anAbstract Class


Implimenting Interfaces

Defifing an Interface
Inheriting an Interface
Interface Variable
Default Interface Methods
Static Interface Methods


Understanding Polymorphism

Object vs. Refrence
Casting Objects
Vitual Methods
Polymorphic Parameters
Polymorphism and Method Overriding