Constructor chaining in Java refers to the process where one constructor calls another constructor in the same or parent class using this() or super(). It improves code reusability and reduces redundancy in constructor logic.
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Which keyword is used to call a constructor from the same class?
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Question 3 of 15
3. Question
Which keyword is used to call a constructor from the parent class?
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Question 4 of 15
4. Question
What is the position of this() or super() in a constructor?
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Question 5 of 15
5. Question
Can both this() and super() be used in the same constructor?
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Question 6 of 15
6. Question
What will happen if a constructor calls itself using this() in a loop?
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Question 7 of 15
7. Question
Can constructor chaining occur between classes in a hierarchy?
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Question 8 of 15
8. Question
What is the default behavior of a constructor if no super() or this() is used?
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Question 9 of 15
9. Question
In constructor chaining, what ensures the base class is initialized first?
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Question 10 of 15
10. Question
Which of the following best describes the advantage of constructor chaining?
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Question 11 of 15
11. Question
What will be the output of the following code?
class A { A() { System.out.println(“Class A Constructor”); } } class B extends A { B() { System.out.println(“Class B Constructor”); } }
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Question 12 of 15
12. Question
Can constructor chaining occur across multiple levels of inheritance?
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Question 13 of 15
13. Question
If a superclass doesn’t have a no-arg constructor, what must the subclass do?
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Question 14 of 15
14. Question
What will happen if this() is not the first statement in a constructor?
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Question 15 of 15
15. Question
Which of the following supports constructor chaining in Java?
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Summary
Constructor chaining allows calling one constructor from another within the same or parent class, using this() or super(). It simplifies code, eliminates redundancy, and ensures proper object initialization from base to derived classes.
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