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When designing a software system, two modelling requirements may arise: ( i ) A class may be required to present more than one external interface

When designing a software system, two modelling requirements may arise:
(i) A class may be required to present more than one external interface to other
collaborating classes.
(ii) Several classes may be required to present the same interface.
For each of the above, describe, using an example of your choice how an Interface
Class can be used to provide a solution to this requirement.

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