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difference between robustness and reliability

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1. How does inheritance improve a programmer's productivity?

2. Describe the difference between robustness and reliability and how design affects these characteristics

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How does inheritance improve a programmer's productivity is determined.

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1. An inherited subclass already has the attributes of the parent class associated with it, so those attributes need not be defined again. For example, if the parent class is 'pet' with attributes name, weight and age, then the subclass 'dog' has already inherited the name, weight and age from its superclass. 'dog' can have its own ...

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