
Q3: Data Abstraction and Java Objects Quiz
Quiz
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Computers
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Professional Development
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Practice Problem
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Medium
Pheona Angoy
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a class in Java?
A blueprint for creating objects
A method for defining behavior
A loop for iteration
A variable for storing data
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of data abstraction?
To make data accessible to unauthorized users
To complicate the code structure
To hide data from the viewer
To expose all data to everyone
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between a class and an object?
A class and an object are the same thing
A class cannot create objects
An object is an instance of a class
A class is an instance of an object
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'state' of an object represent?
The unique identifier of the object
The functionality of the object
The data associated with the object
The relationship between objects
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'behavior' of an object refer to?
The identity of the object
The functionality of the object
The size of the object
The color of the object
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'identity' of an object allow us to do?
Create a new object from a class
Change the state of the object
Compare two objects for equality
Access the behavior of the object
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the process of creating an object from a class called?
Polymorphism
Inheritance
Abstraction
Instantiation
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