Object oriented programming - Properties,Features

Q.  Which of the following are essential features of an object oriented programming language?

1. Abstraction and encapsulation.
2. Strictly-typed
3. Type-safe property coupled with sub-type rule.
4. Polymorphism in the presence of inheritance.

- Published on 17 Jun 15

a. 1 and 2
b. 1 and 4
c. 1, 2, and 4
d. 1, 3 and 4

ANSWER: 1 and 4

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