Recursion in Java is a powerful programming technique where a method calls itself to solve smaller instances of a problem. It simplifies code for problems like factorial, Fibonacci, and tree traversal, but must be used with caution to avoid stack overflow.
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Which is more memory efficient for large input: recursion or iteration?
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Question 8 of 15
8. Question
Can a recursive method have multiple recursive calls?
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Question 9 of 15
9. Question
Which data structure is used internally by recursion?
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Question 10 of 15
10. Question
Which is the correct base case for calculating factorial recursively?
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Question 11 of 15
11. Question
Which problem is best solved using recursion?
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Question 12 of 15
12. Question
Which keyword is used to return a value in a recursive method?
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Question 13 of 15
13. Question
What is the output of the following code?
int fib(int n) { if (n <= 1) return n; return fib(n-1) + fib(n-2); } System.out.print(fib(4));
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Question 14 of 15
14. Question
Can you overload a recursive method?
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Question 15 of 15
15. Question
In tail recursion, the recursive call is:
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Summary
Recursion in Java simplifies complex problems by breaking them into smaller, similar sub-problems. It’s ideal for tasks like tree traversal, Fibonacci, and factorial, but must be controlled with a proper base case to avoid StackOverflowError.
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