Object-Oriented Programming [Java] Latest Questions and Correct Answers

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Object-Oriented Programming [Java]
Latest Questions and Correct Answers
Three Fundamental Features of OOP

Ans: Encapsulation
Inheritance
Polymorphism


Encapsulation

Ans: An object-oriented technique in which the internal
details of an object are "hidden" in order to simplify
their use and reuse.


Inheritance

Ans: A relationship between two classes in which one
class ( the subclass) inherits all of the properties and
capabilities of another ( the superclass)


Polymorphism

Ans: Declaring a variable to have one type while it
refers to an object of a subclass of that type.


Object-Oriented Analysis

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Ans: A means of determining what aspects of a given
problem can be viewed as objects in an eventual object -
oriented design.


Object-Oriented Design

Ans: A software design method that models the
characteristics of abstract or real objects using classes
and objects.


Object-Oriented Programming

Ans: A programming technique that features objects,
classes, encapsulation, interfaces, polymorphism, and
inheritance.


Cohesion

Ans: Degree to which responsibilities of a given
component are a meaningful unit


Cohesion vs Coupling

Ans: Greater cohesion reflects better design. Less
coupling reflects better design.


Coupling