Java Recursive Methods: Exercises, Practice, Solution
Java Recursive Exercises [15 exercises with solution]
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1. Write a Java recursive method to calculate the factorial of a given positive integer.
2. Write a Java recursive method to calculate the sum of all numbers from 1 to n.
3. Write a Java recursive method to calculate the nth Fibonacci number.
4. Write a Java recursive method to check if a given string is a palindrome.
5. Write a Java recursive method to calculate the exponentiation of a number (base) raised to a power (exponent).
6. Write a Java recursive method to reverse a given string.
7. Write a Java recursive method to find the greatest common divisor (GCD) of two numbers.
8. Write a Java recursive method to count the number of occurrences of a specific element in an array.
9. Write a Java recursive method to find the sum of all odd numbers in an array.
10. Write a Java recursive method to find the length of a given string.
11. Write a Java recursive method to generate all possible permutations of a given string.
12. Write a Java recursive method to find the maximum element in an array.
13. Write a Java recursive method to calculate the product of all numbers in an array.
14. Write a Java recursive method to find the sum of the digits of a given integer.
15. Write a Java recursive method to check if a given array is sorted in ascending order.
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