Object Oriented programing

Question 1

What is the main principle of object-oriented programming?

Answer 1

Encapsulation, inheritance, polymorphism, and abstraction.

Question 2

True or False: In object-oriented programming, a class is a blueprint for creating objects.

Answer 2

True.

Question 3

Fill in the blank: The process of creating a new class from an existing class is called __________.

Answer 3

inheritance.

Question 4

What is encapsulation in object-oriented programming?

Answer 4

The bundling of data and methods that operate on the data within one unit, restricting access to some of the object’s components.

Question 5

Which of the following is NOT a feature of object-oriented programming? A) Inheritance B) Polymorphism C) Compilation D) Encapsulation

Answer 5

C) Compilation.

Question 6

What is polymorphism?

Answer 6

The ability of different classes to be treated as instances of the same class through a common interface.

Question 7

True or False: Abstraction is the concept of hiding the complex reality while exposing only the necessary parts.

Answer 7

True.

Question 8

What keyword is often used to define a class in many object-oriented programming languages?

Answer 8

class.

Question 9

Fill in the blank: An object is an instance of a __________.

Answer 9

class.

Question 10

What is an interface in object-oriented programming?

Answer 10

A contract that defines a set of methods that a class must implement.

Question 11

What does the ‘this’ keyword refer to in object-oriented programming?

Answer 11

The current instance of the class.

Question 12

True or False: Constructors are special methods that are called when an object is instantiated.

Answer 12

True.

Question 13

What is method overloading?

Answer 13

Defining multiple methods in the same class with the same name but different parameters.

Question 14

Which of the following is an example of inheritance? A) A car is a type of vehicle. B) A car has wheels. C) A car can drive.

Answer 14

A) A car is a type of vehicle.

Question 15

Fill in the blank: Inheritance allows a class to inherit properties and methods from a __________ class.

Answer 15

parent or superclass.

Question 16

What is the purpose of a destructor in object-oriented programming?

Answer 16

To clean up resources held by an object before it is destroyed.

Question 17

True or False: In object-oriented programming, a subclass can override methods of its superclass.

Answer 17

True.

Question 18

What is a class variable?

Answer 18

A variable that is shared among all instances of a class.

Question 19

What does the term ‘data hiding’ refer to in object-oriented programming?

Answer 19

Restricting access to certain details of an object to protect its integrity.

Question 20

What is structured programming?

Answer 20

Structured programming is a programming paradigm that emphasizes the use of control structures such as sequences, selections, and iterations to improve the clarity and efficiency of code.

Question 21

True or False: Structured programming encourages the use of goto statements.

Answer 21

False

Question 22

Which of the following is NOT a control structure used in structured programming: a) Sequence, b) Goto, c) Selection, d) Iteration?

Answer 22

b) Goto

Question 23

Fill in the blank: In structured programming, programs are typically divided into _____ and functions.

Answer 23

modules

Question 24

What are the three main control structures in structured programming?

Answer 24

Sequence, Selection, Iteration

Question 25

What is the main advantage of structured programming?

Answer 25

It enhances code readability and maintainability.

Question 26

True or False: Structured programming can lead to less efficient code compared to unstructured programming.

Answer 26

False

Question 27

What is a 'block' in structured programming?

Answer 27

A block is a group of statements that are executed together as a single unit.

Question 28

Name one popular programming language that supports structured programming.

Answer 28

C

Question 29

Which structured programming concept allows for decision-making in code flow?

Answer 29

Selection

Question 30

True or False: Functions in structured programming can help reduce code duplication.

Answer 30

True

Question 31

What does the term 'modularity' refer to in structured programming?

Answer 31

Modularity refers to the practice of breaking down a program into smaller, manageable sections or modules.

Question 32

In structured programming, what is the purpose of a loop?

Answer 32

A loop allows code to be executed repeatedly until a certain condition is met.

Question 33

Fill in the blank: A structured programming approach typically leads to _____ testing and debugging.

Answer 33

easier

Question 34

What is the primary focus of structured programming?

Answer 34

To create clear and logical flow of control in programs.

Question 35

True or False: Structured programming is only applicable to high-level programming languages.

Answer 35

False

Question 36

What is the significance of using comments in structured programming?

Answer 36

Comments help explain code and improve readability for others.

Question 37

Define 'top-down design' in the context of structured programming.

Answer 37

Top-down design is a strategy that starts with the highest level of the program and breaks it down into smaller, more detailed parts.

Question 38

What is the role of algorithms in structured programming?

Answer 38

Algorithms provide a step-by-step procedure for solving a problem, which is essential in structured programming.

Question 39

True or False: Structured programming can be used in both procedural and object-oriented programming.

Answer 39

True