1. Inheritance vs Composition? What is Inheritance and what is composition? Use case for each of it. Which is preferable? What is the drawback of inheritance? Is there any rule when choose which? Given an example, which one do you think is suitable for this example.

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1.	Inheritance vs Composition?  What is Inheritance and what is composition? Use case for each of it. Which is preferable?  What is the drawback of inheritance? Is there any rule when choose which?  Given an example, which one do you think is suitable for this example.

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