• 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

Doubt about protected

 
Greenhorn
Posts: 17
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator


After compile, it said "i has protected access in p1.A" in line 15.
Why, B is subclass of A, and member i in A is protected. in my opinion, subclss can access protected member of baseclass.
[ November 21, 2006: Message edited by: Barry Gaunt ]
 
Ranch Hand
Posts: 502
jQuery Spring Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
you are correct, subclass can all the protected memebers of superclass, but only through inheritance and not through object reference, If package of subclass is different from superclass.

This should work,


public class B extends p1.A
{
public void process(A a)
{
i = i*2;
}
....

 
Acetylsalicylic acid is aspirin. This could be handy too:
a bit of art, as a gift, the permaculture playing cards
https://gardener-gift.com
reply
    Bookmark Topic Watch Topic
  • New Topic