Section 3 QuestPond OOPS

Question 1

Why do we need OOPS?

Answer 1

This forces developers to think in terms of real world objects.

Example,

When we deign a program, we think it in a real-world obejcts. We capture nouns as class.

Question 2

Pillars of OOPS?

Answer 2

APIE..

Abstraction

Polmorphism

Inherinace

Encapsulation

Question 3

What is class and Objects?

Answer 3

Class is a blueprint of an object.Object is an instance of an object.

Question 4

Abstraction vs Encapsulation.

Answer 4

Abstraction is hiding the unnecessary data and encapsulation is hide complexity.

ABstraction happens in design phase… Encapsulation during implementation phse.

Encapsulation implements abstraction.

Question 5

explain Inheitance?

Answer 5

Inheitance defines a parent child relationship.

Question 6

What is is-a relationship?

Answer 6

same as inheirtnace…

Question 7

explain Virtual Keyword?

Answer 7

Virtual keywod helps to overide the implementation of a base class.

Question 8

What is method overlaoding

Answer 8

Same method name with different siganatures.

Question 9

Difference between overriding overloading?

Answer 9

Overriding is a parent child relationship