What is a covariant return?

August 26th, 2009 by uCertify Leave a reply »

A covariant return allows a class to override the return type of a method it inherits from a super class. Using the covariant return feature, a method in a subclass may return an object whose type is a subclass of the type returned by the method with the same signature in the superclass. This means that the return type of the subclass’ method should be the subclass of the return type of the superclass’ method.

Like this article? Share it with others
If you like this article, please leave a comment or subscribe this blog via RSS or via e-mail, Bookmark and share through your network. Click the AddThis button below. Thanks.
  • Share/Bookmark
Advertisement

Leave a Reply

uCertify.com | Our Company | Articles | Contact Us | News and Press Release | uCertify India | Entries (RSS)
MCSE: MCSA, MCTS, MCITP    JAVA Certification: SCJP, SCWCD    Cisco Certification: CCNA, CCENT    A+, Network+, Security+ Project+
Oracle Certification: OCP 11g, OCP 10g, OCA 11g, OCA 10g    CIW foundation    EC-212-32,    CISSP    Photoshop ACE CS4    Adobe Flash ACE, PMP, CAPM
© 2008 uCertify.com. All rights reserved. All trademarks are the property of their respective owners.