Module 4 (Midterm)

Question 1

Object-oriented programming System(OOPs) is a programming paradigm based on the concept of “_______” that contain data and methods.

Answer 1

objects

Question 2

The primary purpose of object-oriented programming is to increase the _______ and _______ of programs.

Answer 2

• flexibility
• maintainability

Question 3

Object oriented programming brings together data and its behaviour(methods) in a single location(object) makes it easier to understand how a program works.

Answer 3

Object oriented programming

Question 4

A _________ is a program module, contains a series of statements that carries out a task.

-object
-variable
-method
-class

Answer 4

method

Question 5

executes automatically when you run a program. It can execute additional methods, and those methods can execute others.

-predefined method
-main() method
-method
-user-defined method

Answer 5

main() method

Question 6

To execute a method, _________ or _________from another method

Answer 6

Invoke or call from another method

Question 7

The calling method (client method) makes a method call

-True
-False

Answer 7

T

Question 8

The method header is also called a(n) ________

-declaration
-identifier
-access specifier
-definition

Answer 8

declaration

Question 9

Every method must include the two parts:

Answer 9

• Method header
• Method body

Question 10

_________ is found between a pair of curly braces. It Contains the statements that carry out the work.

Answer 10

Method body

Question 11

Method body is also called _________

-instance
-declaration
-implementation
-content

Answer 11

implementation

Question 12

Which is a method header:

• public static void main(String[] args)
  -public class First
  -methodName()
  -public static void methodName()

Answer 12

public static void main(String[] args)

public static void methodName()

Question 13

The method header contains (give 4):

Answer 13

Optional access specifiers
A return type
An identifier
Parentheses

Question 14

The method must be placed within the main() that will use it

-True
-False

Answer 14

False

-Place the entire method within the class that will use it
-Not within any other method

Question 15

Access specifiers can be (Give 4):

Answer 15

public
private
protected
package

Question 16

Access Specifiers are also called _________

Answer 16

access modifiers

Question 17

______ access allows use by any other class

-public
-private
-protected
-package

Answer 17

public

Question 18

The main() method in an application must specify _______ access

-public
-private
-protected
-package

Answer 18

public

Question 19

The _______ modifier means that the methods do not require an object to be created

-access
-static
-void
-class

Answer 19

static

Question 20

________ describes the type of data the method sends back to the calling method

-keywords
-access specifier
-parameter
-return type

Answer 20

return type

Question 21

The main() method in an application must have a _______ return type

-reference
-void
-integer
-String

Answer 21

void

Question 22

If no data is returned to the method, the return value is _______

-zero
-void
- 1
-none

Answer 22

void

Question 23

Method name rules (Give 3):

Answer 23

Must be one word
No embedded spaces
Cannot be a Java keyword

Question 24

Every method header contains a set of _________ that follow the identifier

• parentheses
• curly braces
• brackets

Answer 24

parentheses

Question 25

Data items you use in a call to a method

-Arguments
-Parameters
-Value
-Specifier

Answer 25

Arguments

Question 26

The only part of a method that the client sees or with which it interacts

Answer 26

Interface

Question 27

Encapsulation of method details within a class

Answer 27

Implementation hiding

Question 28

A method that contains a single parameter must have (5):

Answer 28

Optional access specifiers
Return type for the method
Method name
Parameter type
Local name for the parameter