• 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
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Inner classes question

 
Ranch Hand
Posts: 61
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I am just confused about why inner classes can't have non-final static members ?
------------------
http://www.mantrotech.com
 
Ranch Hand
Posts: 61
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
u can access final varibale in inner class mention your problem correctly
 
Gaurav Mantro
Ranch Hand
Posts: 61
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Inner class can't declare static member variables unless they are static final why ?
------------------
http://www.mantrotech.com
 
Greenhorn
Posts: 15
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
We can "say, loosely, that the static keyword always marks a 'top-level' construct (variable, method, or class), which is never subject to an enclosing instance."
"This shows why an inner class cannot declare a static member, because the entire body of the inner class is in the scope of one or more enclosing instances."
See here
- Dave
 
"The Hood"
Posts: 8521
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
By definition EVERYTHING that the inner class has, that can be manipulated in any way (is not a constant), must be in relation to an instance of the outer class. So each outer class instance would need to have it's OWN version of the inners static member. But you can't have multiple copies of a static thing. So you just can't do it.
 
Gaurav Mantro
Ranch Hand
Posts: 61
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Thanks Cindy and Dave. Your explaination helped me to understand the concept.
regards
Gaurav Mantro
------------------
http://www.mantrotech.com
 
I knew that guy would be trouble! Thanks tiny ad!
a bit of art, as a gift, that will fit in a stocking
https://gardener-gift.com
reply
    Bookmark Topic Watch Topic
  • New Topic