Thankyou dearly. I spent way too much time trying to figure that out! Also why is it that %hash=(0=>A) must be followed by $hash{1}=B ( for next key value pair you set I mean. ) rather than using the first format twice? I can't find this anywhere in the camel book or online.

It does not have to be followed. This is covered in perlintro under Perl variable types, or if you're new to programming, http://learn.perl.org/books/beginning-perl/

In reply to Re^3: Virus toy model by Anonymous Monk
in thread Virus toy model^2 by ZWcarp

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