In Java, a copy constructor is a special constructor used to create a new object as a copy of an existing object. Although Java doesn’t provide a built-in copy constructor like C++, you can manually define it to perform deep or shallow copies of objects.
Time limit: 0
Quiz Summary
0 of 15 Questions completed
Questions:
Information
You have already completed the quiz before. Hence you can not start it again.
Is a copy constructor provided by Java by default?
Correct
Incorrect
Question 3 of 15
3. Question
What is the correct signature of a copy constructor?
Correct
Incorrect
Question 4 of 15
4. Question
What happens if you use the same reference without copying the object?
Correct
Incorrect
Question 5 of 15
5. Question
Which keyword is typically used inside a copy constructor to assign values?
Correct
Incorrect
Question 6 of 15
6. Question
What is a shallow copy?
Correct
Incorrect
Question 7 of 15
7. Question
What is a deep copy?
Correct
Incorrect
Question 8 of 15
8. Question
What is the main use of copy constructors?
Correct
Incorrect
Question 9 of 15
9. Question
Can a copy constructor call another constructor?
Correct
Incorrect
Question 10 of 15
10. Question
Which of these scenarios require a copy constructor?
Correct
Incorrect
Question 11 of 15
11. Question
What is the output?
class A { int x; A(A obj) { x = obj.x; } }
If A a1 = new A(5); is missing, what happens?
Correct
Incorrect
Question 12 of 15
12. Question
Can copy constructor be overloaded?
Correct
Incorrect
Question 13 of 15
13. Question
Can you clone an object using only constructor?
Correct
Incorrect
Question 14 of 15
14. Question
Can a copy constructor be private?
Correct
Incorrect
Question 15 of 15
15. Question
Which Java feature provides object copying other than constructors?
Correct
Incorrect
Summary
Java doesn’t offer a built-in copy constructor, but developers can define their own to handle shallow or deep copies. It’s widely used for cloning objects, duplicating state, and managing immutability in complex applications.
At QuizOrbit, our team specializes in fun, informative quizzes across topics like general knowledge, technology, and entertainment. Boost your knowledge with our expert-designed quizzes.
