OCA Java SE 8 Programmer I Certification Guide

6.9. Review notes

Inheritance with classes:

• A class can inherit the properties and behavior of another class.
• A class can implement multiple interfaces.
• An interface can inherit zero or more interfaces. An interface can’t inherit a class.
• Inheritance enables you to use existing code.
• Inheriting a class is also known as subclassing.
• A class that inherits another class is called a derived class or subclass.
• A class that’s inherited is called a parent or base class or superclass.
• Private members of a base class can’t be inherited in the derived class.
• A derived class can only inherit members with the default access modifier if both the base class and the derived class are in the same package.
• A class uses the keyword extends to inherit a class. ...