Inheritance

Inheritance

Inheritance

A way to create a relationship amongst classes.

Inheritance Hierarchy

A way to determine how information travels amongst the classes.

Superclass

The parent class from which other classes inherit.

Subclass

The classes that inherit from the superclass. They are more specific compared to the parent class.

Overridden method

When one version of a method is replaced by another version.

Polymorphism

When many classes are related to each other by inheritance, allowing different tasks to be performed using inherited methods.

Can a subclasses inherit public instance variables from its superclass?

Yes

Can a subclasses inherit private instance variables from its superclass?

No

Can a subclasses inherit public methods from its superclass?

Yes

Can a subclasses inherit private methods from its superclass?

No

What keyword do you use in the class header to specify the superclass for the subclass you are creating?

extends

// for example:
public class Subclass extends Superclass{}

What does super() mean in the constructor of a subclass?

It calls the constructor of the superclass.