Steve Coulson: interview question 1 #10
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… there was a tornado warning, and then, since the storm passed directly over my subdivision, I had to got home to check on pets and damage. Pets safe. House safe. Plants and trees shredded by hail.
…se 'abstract base class' as I was using the overloaded c++ meaning. replaced use of double quotes with single quotes. rearranged the order of classes and introduced class Operation.
…oved proscriptions of use (exceptions). Added unit tests for class Num and base class Operation.
…on), exposed some bugs in specializations of Operation (i.e. +,-,*,/). How about that\?\! Fixed python novice bug as follows: made public the private function __operate.
…this was outside the core concept. also in class Node, made member 'token' private. In class ExprTreeError, made member 'msg' private'. Renamed Operation.add() to 'addOperand'.
…ferences to member' __msg' had been renamed from 'msg'. In class Operation added method, term(), which provides access to individual operands.
…rtree module. changed exception throw by instance of class Num when value is not convertible to float (new error == NumError).
…ents. modified program to allow identification of token in vicinity of error condition.
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I used the programming question to reacquaint myself with python after a 4 year hiatus.
I have only very rarely ever written sql statements of the simplest variety. Nevertheless, I read up on the topic and then made an attempt.