On 13.08.2009, at 09:08, Ang Beepeng wrote:

>
> Hi.
>
> We can know which class is an object from the object header. But how  
> can we
> know what is the class name of that class? By this I mean only with  
> object
> pointer.


It's the 7th instance variable in the class. So

	self fetchPointer: 6 ofObject: aClass.

See, for example, Interpreter>>classNameOf:Is:.

- Bert -