Introduction to object oriented

Question 1

Which of the following is considered as a state of an object?

Question 1Answer

A.
10

B.
calculatePrice()

C.
price

Answer 1

C.price

Question 2

Which technique is used for structured programming?

Question 2Answer

A.
Divide and conquer

B.
Object-oriented

C.
Top down design

Answer 2

C.Top down design

Question 3

Objects in an object-oriented software collaborate and work together by sending _______ to implement the behaviour of the software.

Question 3Answer

A.
information

B.
messages

C.
parameters

Answer 3

B.
messages

Question 4

Other than state, what does an object have?

A.
behaviour and identity

B.
behaviour and message

C.
class and message

Answer 4

A.
behaviour and identity

Question 5

What is the difference between object oriented programming and structured programming?

Question 5Answer

A.
Object-oriented programming focuses on object orientation while structured programming focuses on algorithmic solutions.

B.
Object-oriented programming focuses on algorithmic solutions while structured programming focuses on object orientation.

C.
Object-oriented programming focuses on top-down design while structured programming focuses on bottom-up design.

Answer 5

A.
Object-oriented programming focuses on object orientation while structured programming focuses on algorithmic solutions.

Question 6

Encapsulation

Answer 6

This encapsulation is achieved through information hiding where the implementation information is hidden from the knowledge of the client.

The objects attributes are usually encapsulated too. The encapsulated attribute is hidden from the client. Therefore, the attributes value also cannot be accessed by
the client (whether it is reading or changing the value).

Question 7

Sending Message

Answer 7

An object communicates with other objects using the message-sending
mechanism.

Question 8

Class

Answer 8

is the template or blueprint that enables the creation of an object.

for example class is like a car factory to create an object car.

Question 9

Inheritance

Answer 9

An object category can be further refined into subcategories

Question 10

Static

Answer 10

The static characteristic of a system is essentially the structural aspect of the system. The static characteristics define what parts the system is
made up of.

Question 11

Dynamic

Answer 11

This is the behavioural features of a system. For example, the ways a system behaves in response to certain events or actions are the
dynamic characteristics of a system.