QUIZ ON : JAVA - OBJECT ORIENTED PROGRAMMING

OBJECT ORIENTED PROGRAMMING

00:00:00

Question No# : 01 out of 50

What is meant by state of an object?

A. Functions of the object

B. Data Members of the object

C. Content of an object

D. All of these

Question No# : 02 out of 50

When does method overloading is determined?

A. At run time

B. At compile time

C. At coding time

D. At execution time

Question No# : 03 out of 50

Data members in a class is used to represent the characteristic of an object

A. TRUE

B. FALSE

Question No# : 04 out of 50

Exposing only necessary information to clients ( main programs, classes) is known as

A. Abstraction

B. Encapsulation

C. Data hiding

D. Hiding complexity

Question No# : 05 out of 50

An object is called a class factory

A. TRUE

B. FALSE

Question No# : 06 out of 50

Encapsulation refers to the art of hiding the complexities and giving a simple interface.

A. TRUE

B. FALSE

Question No# : 07 out of 50

Which among the following is a valid object name?

A. obj1

B. 1obj

C. Obj 1

D. Obj#1

Question No# : 08 out of 50

Which among the following operator is used to access individual members of an object?

A. . (dot)

B. + (plus)

C. – (minus)

D. / (divide)

Question No# : 09 out of 50

What is the ability of an object to take on many forms called?

A. Polymorphism

B. Encapsulation

C. Abstraction

D. Inheritance

Question No# : 10 out of 50

Abstraction is same as encapsulation

A. TRUE

B. FALSE

Question No# : 11 out of 50

Polymorphism types in Java is/are

A. Compile time

B. Run time

C. Both

D. None

Question No# : 12 out of 50

If you want to write multiple functions in a class with same name, then what Java feature will you use?

A. Function overriding

B. Encapsulation

C. Function overloading

D. None

Question No# : 13 out of 50

The new operator is used to create an object

A. TRUE

B. FALSE

Question No# : 14 out of 50

Which of the following is not OOPS concept in Java?

A. Inheritance

B. Encapsulation

C. Polymorphism

D. Compilation

Question No# : 15 out of 50

Java is an example of Object Oriented Language

A. TRUE

B. FALSE

Question No# : 16 out of 50

A class is a mechanism to implement encapsulation

A. TRUE

B. FALSE

Question No# : 17 out of 50

Runtime polymorphism feature in java is

A. method overriding

B. method overloading

C. constructor overloading

D. operator overloading

Question No# : 18 out of 50

Name the programming technique that specifies a series of well-structured steps and procedures within its programming context to compose a program.

A. Procedure Oriented Programming

B. Modular Programming

C. Object Oriented Programming

D. None of these

Question No# : 19 out of 50

Which among the following modifier is used in a ‘class’?

A. public

B. default

C. Both a and b

D. None of these

Question No# : 20 out of 50

Name the programming technique that implements programs as an organized collection of interactive objects.

A. Procedure Oriented Programming

B. Modular Programming

C. Object Oriented Programming

D. None of these

Question No# : 21 out of 50

Name the programming technique that implements programs as an organised collection of interactive objects.

A. Procedure Oriented Programming

B. Modular Programming

C. Object Oriented Programming

D. None of these

Question No# : 22 out of 50

Name the characteristics of Object Oriented Programming that hides the complexity and provides a simple interface

A. Encapsulation

B. Polymorphism

C. Abstraction

D. Inheritance

Question No# : 23 out of 50

Abstraction is same as Encapsulation.

A. TRUE

B. FALSE

Question No# : 24 out of 50

It’s a rule to have a class-name beginning in capital letter

A. TRUE

B. FALSE

Question No# : 25 out of 50

Procedure Oriented Language follows top down approach.

A. TRUE

B. FALSE

Question No# : 26 out of 50

Which of the following is not OOPS concept in Java?

A. Inheritance

B. Encapsulation

C. Polymorphism

D. Compilation

Question No# : 27 out of 50

Following concept can be used for encapsulation in java programs

A. Wrapping data fields with methods

B. Hiding data and internal methods using access modifiers in a class

C. Using Interfaces

D. All of the above

Question No# : 28 out of 50

Java is an example of Object Oriented Language.

A. TRUE

B. FALSE

Question No# : 29 out of 50

For Cat and Animal class, correct way of inheritance in java is

A. class Cat extends Animal

B. class Animal extends Cat

C. Both are correct way

D. None is correct way

Question No# : 30 out of 50

Hiding the complexity and giving a simple interface is called Inheritance.

A. TRUE

B. FALSE

Question No# : 31 out of 50

A ____ is a template that binds together data and methods together

A. Class

B. Object

C. Method

D. None of these

Question No# : 32 out of 50

Java does not support _______________

A. Inheritance

B. Multiple inheritance for classes

C. multiple inheritance of interface

D. compile time polymorphism

Question No# : 33 out of 50

Which among the following is a valid class name?

A. Simple Interest

B. SimpleInterest

C. 1SimpleInterest

D. Simple@Interest

Question No# : 34 out of 50

Java object oriented programming concepts is/are

A. Encapsulation

B. Inheritance

C. polymorphism

D. All of the above

Question No# : 35 out of 50

What is the behaviour aspect of an object represented by?

A. Member Functions

B. Data Members

C. Both a and b

D. None of these

Question No# : 36 out of 50

Which of the following is a type of polymorphism in Java?

A. Compile time polymorphism

B. Execution time polymorphism

C. Multiple polymorphism

D. Multilevel polymorphism

Question No# : 37 out of 50

Which statement about objects is true?

A. One object is used to create one class.

B. One class is used to create one object.

C. One object can create many classes.

D. One class can create many objects.

Question No# : 38 out of 50

Hiding the complexity in program is known as

A. Abstraction

B. Encapsulation

C. Data hiding

D. Composition

Question No# : 39 out of 50

Name the characteristics of Object Oriented Programming that hides the complexity and provides a simple interface.

A. Encapsulation

B. Polymorphism

C. Abstraction

D. Inheritance

Question No# : 40 out of 50

A set of instructions given to a computer to do a particular task.

A. Program

B. High level Language

C. Object

D. None of these

Question No# : 41 out of 50

Procedure Oriented Language follows top down approach.

A. TRUE

B. FALSE

Question No# : 42 out of 50

Encapsulation refers to the art of hiding the complexities and giving a simple interface

A. TRUE

B. FALSE

Question No# : 43 out of 50

IS-A relationship in java is related to

A. Inheritance

B. Encapsulation

C. Composition

D. None

Question No# : 44 out of 50

What is the term that is used to represent hierarchical relationship of generalization?

A. Polymorphism

B. Encapsulation

C. Abstraction

D. Inheritance

Question No# : 45 out of 50

Name the art of implementing Encapsulation in Object Oriented Programming.

A. Polymorphism

B. Encapsulation

C. Abstraction

D. class

Question No# : 46 out of 50

Which concept of Java is a way of converting real world objects in terms of class?

A. Polymorphism

B. Encapsulation

C. Abstraction

D. Inheritance

Question No# : 47 out of 50

A class is an instance of an object

A. TRUE

B. FALSE

Question No# : 48 out of 50

Encapsulation concept in java is

A. Hiding complexity

B. Method hiding

C. Hiding constructor

D. None

Question No# : 49 out of 50

In a class, encapsulating an object of another class is called

A. Composition

B. Inheritance

C. Encapsulation

D. None

Question No# : 50 out of 50

An object is represented by two attributes, out of which one is characteristics and the other one is

A. Behaviour

B. Situation

C. Abstraction

D. Encapsulation