The Perl object classic example: create two classes Bean.pm and Coffee.pm, some of the features of Coffee.pm inheritance in Bean.pm. This example demonstrates how to a base class (or super class) inherited instance variables, and the instance variables to the new object in the method for their own constructor calls the base class.

setBeanType\beanpm.txt
...........\coffeepm.txt
...........\mainpl.txt
setBeanType

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