Move all x recursion code runtime error

#1

what is wrong in my code

#2

import java.util.*;
public class Main {
public static void main(String args[]) {
Scanner sc=new Scanner(System.in);
String str=sc.nextLine();
int l=str.length();
String ans1=moveallx(str);
System.out.println(ans1);

    // Your Code Here
}
public static String moveallx(String str1){
	if(str1.length()==-1){
		String basecase="";
		return basecase;
	}
	char ch=str1.charAt(0);
	String ans=moveallx(str1.substring(1));
	if(ch=='x'){
		ans=ans+'x';
		return ans;
	}
	else{
		ans=ch+ans;
	}
	return ans;
}

}

#3
  1. always try to take a string input using next() method of scanner.
  2. your base condition of recursion is wrong. if string length is 1, it does not matter, its a x or something else.
    thannks
#4

Thank you very much sir

#5

please rate and resolve if satisfied.
thanks

#6

how to rate ,I have never done that

#7

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#8

@Adhyayan,
What problem are you facing?

#9

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