[Newbies] Is there a program to generate an all classes tree chart?

Albert Lee hanzhupeng at gmail.com
Tue Nov 4 02:34:53 UTC 2008

learning smalltalk, and get some idea of Metaclass and reflective.
we can use subclasses or allSubclasses to list a Class' subclass, and
then, we can generate the inherit tree.

so, is there any existing program to generate this chart?

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