The usual definition of a palindrome is a word that reads the same both forward and

backward, like "otto" and "palindromeemordnilap." An alternative way to define a

property like this is to specify a way of testing for the property. For example, we might say,

"a single letter is a palindrome, and a two$-$letter word is a palindrome if the letters are the

same, and any other word is a palindrome if the first letter is the same as the last and the

middle is a palindrome."

Write a recursive method named isPalindrome that takes a String and that returns a

boolean indicating whether the word is a palindrome or not.