The whole debate about mutable and immutable classes, the inheritance hierarchy, what it means to return a pointer to a supposedly immutable object, what it means to store a pointer to a supposedly immutable object, the "substitutability" principle of object oriented programming, whether alternative designs should have been used, comparisons to the const keyword in C++, documentation criticisms, and countless inane comments were conducted in 1996. There is nothing to add now (13 years later): http://groups.google.com/groups/search?hl=en&as_q=immutable&as_epq=&as_oq=&as_eq=&num=100&scoring=&lr=&as_sitesearch=&as_drrb=q&as_qdr=&as_mind=1&as_minm=1&as_miny=1981&as_maxd=1&as_maxm=1&as_maxy=2009&as_ugroup=comp.sys.next.programmer&as_usubject=&as_uauthors=&safe=off _______________________________________________
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