permutations of a string using iteration

Question

I\'m trying to find permutation of a given string, but I want to use iteration. The recursive solution I found online and I do understand it, but converting it to an iterati

Answer 1

package vishal villa;

import java.util.Scanner;

public class Permutation {
    static void result( String st, String ans)
    {

        if(st.length() == 0)
            System.out.println(ans +" ");

        for(int i = 0; i