Module 4

Question 1

A _________ is a set of statements to perform a specific task.

Answer 1

function

Question 2

_________ organize the program into logical blocks of code.

Answer 2

Functions

Question 3

_________ may be called to access code.

Answer 3

functions

Question 4

_________ are the building blocks of readable, maintainable, and
reusable code.

Answer 4

Functions

Question 5

_________ {
// main function goes here
}

Answer 5

main()

Question 6

A function must be called to execute it. This process is
termed as _________.

Answer 6

function invocation

Question 7

_________ may also return value along with the control, back
to the caller.

Answer 7

Returning functions

Question 8

The _________ can be any valid data type.

Answer 8

return_type

Question 9

The _________ statement is optional. If not specified, the
function returns null.

Answer 9

return

Question 10

The return statement is optional. If not specified, the
function returns _________ .

Answer 10

null

Question 11

The _________ of the value returned must match the return
type of the function.

Answer 11

data type

Question 12

A function can return at the most _________ value. In other
words, there can be only _________ return statement per function.

Answer 12

one

Question 13

_________ are a mechanism to pass values to functions.

Answer 13

Parameters

Question 14

_________ form a part of the function’s signature.

Answer 14

Parameters

Question 15

The _________ values are passed to the function during its invocation.

Answer 15

parameter

Question 16

_________ is a programming language model in which programs are organized around data, or objects, rather than functions and logic.

Answer 16

Object-oriented programming (OOP)

Question 17

An object is an _________ meant to represent a component of a program.

Answer 17

abstraction

Question 18

_________ can be created, destroyed, given attributes, and made
to perform actions.

Answer 18

Objects

Question 19

Every object belongs to a _________.

Answer 19

class

Question 20

The class of an object is its _________.

Answer 20

type

Question 21

Objects of the same class have the same ________ variables and methods available to them

Answer 21

instance

Question 22

a _________ is a blueprint for creating objects (a particular data structure), providing initial values for state (member variables or attributes), and implementations of behavior (member functions or methods).

Answer 22

class

Question 23

Use the _________ keyword to declare a class in Dart.

Answer 23

class

Question 24

A class definition starts with the keyword class followed by the _________

Answer 24

class name

Question 25

the class body enclosed by a pair of _________.

Answer 25

curly braces

Question 26

A _________ is any variable declared in a class. They represent data pertaining to objects.

Answer 26

field

Question 27

Allows the program to initialize and retrieve the values of the fields of a class.

Answer 27

Setters and Getters

Question 28

A _________ getter/ setter is associated with every class. However, they can be overridden by explicitly defining a setter/getter.

Answer 28

default

Question 29

responsible for allocating memory for the objects of the class.

Answer 29

Constructors

Question 30

represent actions an object can take.

Answer 30

Functions

Question 31

Functions are also at times referred to as _________.

Answer 31

methods

Question 32

To create an instance of the class, use the _________ keyword followed by the class name.

Answer 32

new

Question 33

The _________ keyword is responsible for instantiation.

Answer 33

new

Question 34

The constructor should be passed _________ if it is parameterized.

Answer 34

values

Question 35

is a special function of the class that is responsible for initializing the variables of the class.

Answer 35

constructor

Question 36

Dart defines a constructor with the same name as that of the _________.

Answer 36

class

Question 37

A constructor is a function and hence can be _________

Answer 37

parameterized

Question 38

unlike a function, constructors cannot have a _________

Answer 38

return type

Question 39

If you don’t declare a constructor, a default _________ is provided for you.

Answer 39

no-argument constructor

Question 40

Dart provides _________ to enable a class define multiple constructors.

Answer 40

named constructors

Question 41

Dart provides named constructors to enable a class define _________.

Answer 41

multiple constructors

Question 42

_________ and _________, also called as accessors and mutators

Answer 42

Getters and Setters

Question 43

Getters and Setters, also called as _________ and _________

Answer 43

accessors and mutators

Question 44

_________ allow the program to initialize and retrieve the values of class fields respectively

Answer 44

Getters and Setters

Question 45

Getters or accessors are defined using the _________ keyword.

Answer 45

get

Question 46

Setters or mutators are defined using the _________ keyword.

Answer 46

set

Question 47

The _________ keyword refers to the current instance of the class in a method or constructor with parameters

Answer 47

this

Question 48

Fundamental Principles of OOP

Answer 48

Inheritance Polymorphism Abstraction Encapsulation

Question 49

inherit members from parent class

Answer 49

Inheritance

Question 50

Access class through parents interface

Answer 50

Polymorphism

Question 51

Define and execute abstract actions

Answer 51

Abstraction

Question 52

Hide internal properties of the class

Answer 52

Encapsulation

Question 53

The class giving its members its child class

Answer 53

Base (parent) class

Question 54

The class taking members from its base class

Answer 54

Derived (child) class

Question 55

Inheritance implicitly takes __________ from another class

Answer 55

all members

Question 56

In Inheritance, some members may be __________ : private members hidden in the derived class

Answer 56

inaccessible

Question 57

Use __________ for building is-a relationship * i.e: Dog is-a animal

Answer 57

inheritance

Question 58

Inheritance allows __________ to inherit the characteristics of an existing parent class (base)

Answer 58

child classes (derived)

Question 59

Inheritance allows child classes (derived) to inherit the characteristics of an existing __________

Answer 59

parent class (base)

Question 60

A __________ can extend the parent class

Answer 60

child class

Question 61

An __________ defines set of operations(methods) that a given should support

Answer 61

interface

Question 62

A class can implement an __________ by providing implementation for all methods

Answer 62

interface

Question 63

Types of inheritance

Answer 63

Single inheritance Multiple inheritance Multi-level inheritance Hierarchical inheritance

Question 64

when a class inherits a single parent class Single inheritance Multiple inheritance Multi-level inheritance Hierarchical inheritance

Answer 64

Single inheritance

Question 65

When a class inherits more than one parent class Single inheritance Multiple inheritance Multi-level inheritance Hierarchical inheritance

Answer 65

Multiple inheritance

Question 66

when a class inherits another child class Single inheritance Multiple inheritance Multi-level inheritance Hierarchical inheritance

Answer 66

Multi-level inheritance

Question 67

More than one class having the same parent class Single inheritance Multiple inheritance Multi-level inheritance Hierarchical inheritance

Answer 67

Hierarchical inheritance

Question 68

Child classes inherits all properties and methods excepts __________ of the parent class

Answer 68

constructors

Question 69

Unlike Java, Dart does not support __________ inheritance

Answer 69

multiple

Question 70

Every class can at the most extend from one parent class Single inheritance Multiple inheritance Multi-level inheritance Hierarchical inheritance

Answer 70

Single inheritance

Question 71

A class can inherit properties of the base class from another child class. Single inheritance Multiple inheritance Multi-level inheritance Hierarchical inheritance

Answer 71

Multi-level inheritance

Question 72

More than one classes have the same parent class Single inheritance Multiple inheritance Multi-level inheritance Hierarchical inheritance

Answer 72

Hierarchical inheritance

Question 73

A __________ type of inheritance only that inherits properties of parent class only that it overrides the same method declared in child class

Answer 73

Multi-level

Question 74

provide means ignoring irrelevant features, properties, or functions and emphasizing on relevant ones

Answer 74

Abstractions

Question 75

Abstractions helps manage complexity (T/F)

Answer 75

T

Question 76

Hides implementation details

Answer 76

Encapsulation

Question 77

Class announces only a few operations (methods) available to objects

Answer 77

Encapsulation

Question 78

All data members(fields) of the class are hidden and can only be accessed via properties (read-only and read-write)

Answer 78

Encapsulation