Palindrome.java

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import java.util.*;
class Palindrome {
    /* use this method to check whether the string is palindrome word or not
     */
    public static boolean isPalindrome(String word) {
        int n;
        n = word.length();
        Character first = new Character(word.charAt(0));
        Character last = new Character(word.charAt(n-1));
        boolean result;
        if (first.equals(last)){
            if (n == 1 || n == 2 || n == 3){
                result = true;
            } else {
            result = isPalindrome(word.substring(1, n-1));
            }
        } else {
        result = false;
        }
        return result;
    }
    public static void main(String[] args) {
        // declare the necessary variables
        String myWord;
        // declare a Scanner object to read input
        Scanner myScanner = new Scanner(System.in);
        // read input and process them accordingly
        myWord = myScanner.next();
        // simulate the problem
        boolean result = isPalindrome(myWord);
        // output the result
        if (result){
            System.out.println("YES");
        } else{
            System.out.println("NO");
        }
    }
}