Help me in solving RECUR11 problem

help
,
1

My issue

i want code

My code

import java.util.Scanner;

public class Main {
    static boolean checkPalindrome(String s, int start, int end) { 
        if ( strat>= end) {
           return true;
        if (s.charAt(start) != s.charAt(end)) {
            return false;
        }
        return checkPalindrome(s, start+1, end-1);
        
        
        //Write your code here
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.nextLine(); 
        boolean result = checkPalindrome(s, 0, s.length()-1);
        System.out.println(result ? "YES": "NO");
        scanner.close();
    }
}

Learning course: Design and Analysis of Algorithms
Problem Link: https://www.codechef.com/learn/course/kl-daa/KLDAA2400E/problems/RECUR11