import java.util.Scanner;

public class PalindromeTester  {
   public static void main (String[] args)  {
      String str, another = "y";
      int left, right;
      Scanner scan = new Scanner (System.in);
      while (another.equalsIgnoreCase("y")) // allows y or Y
      {
         System.out.println ("Enter a potential palindrome:");
         str = scan.nextLine();
         left = 0;
         right = str.length() - 1;
         while (str.charAt(left) == str.charAt(right) && left < right)  {
            left++;
            right--;
         }
         System.out.println();
         if (left < right)
            System.out.println ("That string is NOT a palindrome.");
         else
            System.out.println ("That string IS a palindrome.");
         System.out.println();
         System.out.print ("Test another palindrome (y/n)? ");
         another = scan.nextLine();
      }
   }
}
