This week's giveaway is in the Testing forum.
We're giving away four copies of TDD for a Shopping Website LiveProject and have Steven Solomon on-line!
See this thread for details.
Win a copy of TDD for a Shopping Website LiveProject this week in the Testing forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Paul Clapham
  • Ron McLeod
  • Jeanne Boyarsky
  • Tim Cooke
Sheriffs:
  • Liutauras Vilda
  • paul wheaton
  • Henry Wong
Saloon Keepers:
  • Tim Moores
  • Tim Holloway
  • Stephan van Hulst
  • Carey Brown
  • Frits Walraven
Bartenders:
  • Piet Souris
  • Himai Minh

Inheritance Question

 
Ranch Hand
Posts: 37
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator


Could any body help me out with this??
Answer :ABC
 
Ann Sebastian
Ranch Hand
Posts: 37
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Here is the explanation given


In all three cases, the object passed to method m1 is an instance of class C; however, the type of the reference is different for each method. Since fields are accessed based on the type of the reference, the value printed by each method is different even though the same instance is used for each method invocation.

 
Ranch Hand
Posts: 175
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Er... is this a trick question? Or don't you follow the explanation? If yes, what part of the explanation doesn't make sense to you?
Sashi
 
Ranch Hand
Posts: 146
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
you are trying to do something called member overriding. but remember, members are never overridden. only methods do. try same code and call an over ridden method. you will get polymorphic behaviour.

members are always referred according to the type of object reference and not the actual object it is referring to.
 
Oh. Hi guys! Look at this tiny ad:
Free, earth friendly heat - from the CodeRanch trailboss
https://www.kickstarter.com/projects/paulwheaton/free-heat
reply
    Bookmark Topic Watch Topic
  • New Topic