OOP Q7
Quiz
•
Computers
•
University
•
Practice Problem
•
Easy
Darwin Vargas
Used 9+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which keyword is used to achieve encapsulation in Java?
A) private
B) protected
C) public
D) All of the above
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Consider the following class. What is the purpose of the setSpeed method?
A) To set the speed field to any value
B) To restrict setting the speed field to non-negative values
C) To get the value of the speed field
D) To print the speed field
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What will be the result of attempting to compile and run the following code?
A) null
B) John
C) Compilation error
D) Runtime error
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is encapsulation in Java?
A) A process of combining methods and data members in a single unit
B) A process of hiding the implementation details and exposing only the functionality
C) A process of inheriting methods from a superclass
D) A process of overriding methods in a subclass
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does it mean for a class to be tightly encapsulated?
A) All its fields are private, and it provides public getter and setter methods for them
B) All its fields and methods are public
C) It does not have any constructors
D) It cannot be inherited
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main advantage of encapsulation?
A) It allows direct access to the data
B) It makes the class methods private
C) It enhances code maintenance and flexibility
D) It prevents class inheritance
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is true about encapsulation?
A) It requires all methods to be private
B) It requires all classes to be public
C) It allows a class to control how its data is accessed and modified
D) It prevents the use of inheritance
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