Factorial in Java

Welcome to the Factorial in Java page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

public class Factorial {
    public static long fact(long n) {
        if (n <= 0)
            return 1;
        return n * fact(n - 1);
    }

    public static void main(String[] args) {
        try {
            long n = Long.parseLong(args[0]);
            if (n > 59) {
                System.out.println(String.format("%1$s! is out of the reasonable bounds for calculation.", n));
                System.exit(1);
            } else if (n < 0) {
                System.out.println("Usage: please input a non-negative integer");
                System.exit(1);
            }
            long result = fact(n);
            System.out.println(result);
        } catch (Exception e) {
            System.out.println("Usage: please input a non-negative integer");
            System.exit(1);
        }
    }
}

Factorial in Java was written by:

• Bharath
• Jeremy Grifski
• Parker Johansen

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

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