in reply to how to code a class and use it with hash of hash as data member?

This code is a real mess -- I don't even think it will compile due to syntax errors and until you understand those, figuring out the object part will be a real challenge.

I suggest you spend some time going back to some basic tutorials on OO Perl. Perhaps Tutorial: Introduction to Object-Oriented Programming or Perl Object Oriented Meta-Tutorial would be a good starting point to give you some examples to work from.

Best of luck

-xdg

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