Awesome q2a theme



0 votes
12 views

extends is for extending a class.

implements is for implementing an interface

The difference between an interface and a regular class is that in an interface you can not implement any of the declared methods. Only the class that "implements" the interface can implement the methods. The C++ equivalent of an interface would be an abstract class (not EXACTLY the same but pretty much).

Also java doesn't support multiple inheritance for classes. This is solved by using multiple interfaces.

asked Aug 24 in Java Interview Questions by rajesh | 12 views



Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

Related Questions



Welcome to Knowledge Boostr, where you can ask questions and receive answers from other members of the community.
This is a collaboratively edited question and answer site for professional and enthusiast programmers. It's 100% free, no registration required.
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

http://boostr.in Q&A for professional and enthusiast programmers http://boostr.in Q&A for professional and enthusiast programmers http://boostr.in Q&A for professional and enthusiast programmers http://boostr.in Q&A for professional and enthusiast programmers


23,444 questions
40,127 answers
12 comments
23,597 users