• 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:
  • Tim Cooke
  • Campbell Ritchie
  • Paul Clapham
  • Ron McLeod
  • Liutauras Vilda
Sheriffs:
  • Jeanne Boyarsky
  • Rob Spoor
  • Bear Bibeault
Saloon Keepers:
  • Jesse Silverman
  • Tim Moores
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
Bartenders:
  • Piet Souris
  • Al Hobbs
  • salvin francis

Static variables and inheritance

 
Ranch Hand
Posts: 637
Eclipse IDE Firefox Browser Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I made a class P and Q-extends P. P has a static string S. Both classes have a non-static method to edit S. Instances of P and Q share one static string. But, that is not the case for int. I get errors "cannot find symbol : variable <your-static-variable>" if i replace String with an int (after making the necessary changes to code).
What is happening ?

 
Bartender
Posts: 4568
9
  • Likes 2
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I think we're going to need to see some actual code to be much help here.
 
Rahul Sudip Bose
Ranch Hand
Posts: 637
Eclipse IDE Firefox Browser Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
The code with static int which does not compile :



The errors :


The code with static string, compiles and runs :



PS : the two thumbs up...hmm... interesting...
 
author
Posts: 23909
142
jQuery Eclipse IDE Firefox Browser VI Editor C++ Chrome Java Linux Windows
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

The code with String uses inheritance. The code with int does not -- Dog goes not inherit from Animal.

Henry
 
Henry Wong
author
Posts: 23909
142
jQuery Eclipse IDE Firefox Browser VI Editor C++ Chrome Java Linux Windows
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Rahul Sudip Bose wrote:
PS : the two thumbs up...hmm... interesting...



It means that at least two people agree with what Matthew said in the post.

Henry
 
Rahul Sudip Bose
Ranch Hand
Posts: 637
Eclipse IDE Firefox Browser Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
oh god...sorry for that lame post...i guess that means i should be sleeping now
 
Bartender
Posts: 3225
34
IntelliJ IDE Oracle Spring Chrome Java
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
errors like- Cannot find symblo must be easy to spot. There would be not much of logic or thinking involved in spotting them. If we try to think too much then we would get misguided and end up in a big mess.

And yeah you need to catch up with your sleep
reply
    Bookmark Topic Watch Topic
  • New Topic