hello,
is the following true?

1) if I do a logic:iterate over a Collection when viewing the items in the 
Collection, I can use e.g. a HashSet
2) if I do a logic:iterate over a Collection and I want to be able to also 
update the items, I need to use an indexable Collection, e.g. an ArrayList. 
HashSet won't do.

cheers,
pj


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