Slip No 22 Q A

Q.Write a Java program to calculate factorial of a number using recursion.[15 M]

import java.util.Scanner;

class FactorialRecursion
{
    // Recursive function
    int fact(int n)
    {
        if(n == 0 || n == 1)
            return 1;
        else
            return n * fact(n - 1);
    }

    public static void main(String args[])
    {
        Scanner sc = new Scanner(System.in);
        FactorialRecursion f = new FactorialRecursion();

        System.out.print("Enter a number: ");
        int n = sc.nextInt();

        int result = f.fact(n);
        System.out.println("Factorial = " + result);
    }
}