Concept explainers
One of the most common examples of recursion is an
0! is equal to 1
1! is equal to 1
21 is equal to 2 × 1 = 2
3! is equal to 3 × 2 × 1 = 6
4! is equal to 4 × 3 × 2 × 1 = 24
…
n! is equal to n × (n - 1) × (n- 2) × … × 3 × 2 × 1
An alternative way to describe the calculation of n! is the recursive formula n × (n−1)!, plus a base case of 0!, which is 1. Write a static method that implements this recursive formula for factorials. Place the method in a test
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