Login | Register   
RSS Feed
Download our iPhone app
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.

Tip of the Day
Language: Java Language
Expertise: Beginner
Oct 17, 2000



Application Security Testing: An Integral Part of DevOps

Object Class

Every class in Java is supposed to extend the Object class by default. In case a user class extends some other class (e.g., if myclass extends yourclass), then is it not multiple inheritance?

Multiple inheritance is when one class inherits the behavior of two or more parent classes. Inheritance of the type you've described is called single inheritance because "myclass" inherits Object through "yourclass" rather than apart from it.

Multiple inheritance can be achieved in Java through interfaces, but inheritance of implementation requires the use of aggregation and delegation as described in the answer to the question with the subject "Multiple Inheritance."

DevX Pro
Comment and Contribute






(Maximum characters: 1200). You have 1200 characters left.



We have made updates to our Privacy Policy to reflect the implementation of the General Data Protection Regulation.
Thanks for your registration, follow us on our social networks to keep up-to-date