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[QUOTE="Minkoo Seo, post: 4506859"]
Hi group.

Recently, I've read

[URL]http://www.visibleworkings.com/little-ruby/Chapter3.pdf[/URL]
[URL]http://www.ruby-doc.org/docs/Understanding%20Ruby's%20Object%20Model/ChrisPine_UROM.ppt[/URL]
and PickAxe.

I'm trying to draw a picture of hierarchy for the following:

class Foo
@@k = 20
end

class Bar < Foo
@j = 10

def initialize
@i = 0
end
end

b = Bar.new

I understand how to draw hierarchy if it were not for class variables:

In this picture parenthesis represents meta class. Upward arrows
represents 'class', while leftward arrows represents 'inherits'.

But, I have no idead where the class variable k should belong to. k is
shared by Foo and Bar which menas that if k is modified at Foo, then
the value of k at Bar will be modified also. That being the case, does
k must be drawn under (Foo)? or Class?

Thanks.

- Minkoo Seo
[/QUOTE]

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