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Q71. Have you ever used java.util.Objects class ?

Ans. Yes, We are using requireNonNull method for validating if the object is null.

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Q72. Explain Transitive equals contract.

Ans. The equals contract is said to be transitive if

obj1.equals(obj2); and obj2(.equals(obj3)

then obj1.equals(obj3) also returns true.

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