hw_f_palindrome.java

import java.util.Scanner;
public class hw_f_palindrome{
    
    static boolean checkPalindrome(String str, int s, int e) { 
        if (s == e)   
            return true;          
        if ((str.charAt(s)) != (str.charAt(e))) 
            return false;   
        if (s < e + 1) 
            return checkPalindrome(str, s + 1, e - 1);   
        return true; 
    }   
    static boolean isPalindrome(String str) 
    { 
        int n = str.length();   
 
        if (n == 0) 
            return true;   
        return checkPalindrome(str, 0, n - 1); 
    }   
     
    public static void main(String args[]) 
    { 
       
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter the String :");
        String str = sc.nextLine();
        if (isPalindrome(str)) 
            System.out.println(str+" is palindrome"); 
        else
            System.out.println(str+ " is not a palindrome"); 
            sc.close();
    }   
}