Skip to Content
Java How to Program, Early Objects, 11th Edition
book

Java How to Program, Early Objects, 11th Edition

by Paul J. Deitel, Harvey Deitel
June 2017
Beginner
1296 pages
69h 23m
English
Pearson
Content preview from Java How to Program, Early Objects, 11th Edition

10.7 final Methods and Classes

We saw in Sections 6.3 and 6.10 that variables can be declared final to indicate that they cannot be modified after they’re initialized—such variables represent constant values. You also declare method parameters final to prevent them from being modified in the method’s body. It’s also possible to declare methods and classes with the final modifier.

Final Methods Cannot Be Overridden

A final method in a superclass cannot be overridden in a subclass—this guarantees that the final method implementation will be used by all direct and indirect subclasses in the hierarchy. Methods that are declared private are implicitly final, because it’s not possible to override them in a subclass. Methods that are declared static ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Beginning Java 17 Fundamentals: Object-Oriented Programming in Java 17

Beginning Java 17 Fundamentals: Object-Oriented Programming in Java 17

Kishori Sharan, Adam L. Davis
Learning Java, 5th Edition

Learning Java, 5th Edition

Marc Loy, Patrick Niemeyer, Daniel Leuck
Java in a Nutshell, 8th Edition

Java in a Nutshell, 8th Edition

Benjamin J. Evans, Jason Clark, David Flanagan

Publisher Resources

ISBN: 9780134751962