CODE EXAMPLE FOR JAVA

exponet

import java.util.Scanner;

public class multipied {
    public static Scanner scanner = new Scanner (System.in);
    public static void main(String[] args) {
        System.out.println("Enter int");
        int n = scanner.nextInt();
        int sum = 1;
        System.out.println("For loop");
        for(int i = 0 ; i < n ; ++i ){
            if(n == 0){
                System.out.println(sum+'
');
                break;
            }
            sum*=2;
        }

        if (n >= 31){
            System.out.println(sum-1);
            int r = multipied(n);
            System.out.println("
Recursive");
            System.out.println(r-1);
        }else{
            System.out.println(sum);
            int r = multipied(n);
            System.out.println("
Recursive");
            System.out.println(r);
        }



    }

    public static  int multipied(int n){
        int ans;
        if(n == 0)
            return 1;
        else if(n%2 == 0){
            int k = multipied(n/2);
            ans = k*k;
        }
        ans= 2 * multipied(n-1);

        return ans ;
    }

}