Recursion

 package com.company;

public class CWH_34_Recursion {
    static int factorial(int n){
        if(n==0 || n==1){
            return 1;
        }
        else {
            return n * factorial(n - 1);

        }
    }
    public static void main(String[] args) {

        System.out.println(" factorial is : "+factorial(5));
    }
}