Not getting the desired output

#1

Code:
package recursion;

import java.util.ArrayList;

public class Permutation {

public static void main(String[] args) {
	System.out.println(getPermutation("abc"));
}

public static ArrayList<String> getPermutation(String str)
{
	if(str.length()==0) {
		ArrayList<String> br = new ArrayList<>();
		br.add("");
		return br;
	}
	char ch = str.charAt(0);
	String ros = str.substring(1);
	ArrayList<String> rr = getPermutation(ros);
	
	ArrayList<String> mr = new ArrayList<>();
	for(String rrs:rr)
	{
		for(int i=0;i<rrs.length();i++)
		{
			String val = rrs.substring(0,i) + ch + rrs.substring(i);
			mr.add(val);
		}
	}
	
	return mr;
}

}

#2

Hey @bharath_gopishetti, you have an error in this line:

i can vary from 0 to <= rrs.length() as we can also append the character at the end.

So, we should use this

Hope it helps :slight_smile:

#3

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