• 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

new bie question-- top-level classess

 
Greenhorn
Posts: 3
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I am preapring for my SCJP exam. I have some good experience in c/c++. I started my prepration with RHE and side by side taking mock exams to my confidence level. I come across the words "top-level classes" and sometimes "top-level classes (not inner class)". Can someone explain what exactly a "top-level" class mean with respect to the package, inner classes, etc..
Thanks
Ramesh
 
Greenhorn
Posts: 11
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi, Ramesh:
Let me try it first. Correct me if I am wrong.
Top-leve classes: they are members of packages.
Nested top-level classes: Inner classes with static modifier.
A local classes: defined in a blocks.
Anonymous classes: combine delcare & creation, have no names.
Jane Z.
 
Sheriff
Posts: 5782
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
'RT'
PROPER NAMES ARE NOW REQUIRED!!
Read this post for more details.
Ajith
 
Ranch Hand
Posts: 3141
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Just to add to Jane's post, here's a code example

Hope that helps.
------------------
Jane
 
Ranch Hand
Posts: 81
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Originally posted by Jane Griscti:
[B]Just to add to Jane's post, here's a code example

[/B]


Jane, are you trying to depict an anonymous class? Is this right?
thanks,
Zulfiqar

 
Jane Griscti
Ranch Hand
Posts: 3141
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi Zulfiqar,
Yes. I was trying to show that you can create an Anonymous class using any existing class. For example, if you had a class named <code>Attr</code> that had a method <code>public Object setValue(Object nv)</code> you could create an Anonymous class based on <code>Attr</code> by doing something like:

You can call any of the original constructors but you can't redefine a constructor as technically the anonymous class doesn't have a name.

------------------
Jane
 
Don't get me started about those stupid light bulbs.
reply
    Bookmark Topic Watch Topic
  • New Topic