In java without Arrays and only using String Methods (Don't use Stringbuilder or Stringbuffer)

// Question 18a: Write the method below that tests

// whether a word is a palindrome (the same when read

// forward or back, such as "madam"). Test isPalindrome

// using the appropriately modified StringTest program

public static boolean isPalindrome(String dateStr) {

}

// Question 18b: Upgrade isPalindrome so that it can handle

// any phrase (as in, "Madam, I'm Adam"). Copy the logic of

// isPalindrome into isPalindromePhrase below to start.

//

// In testing for a palindrome, disregard all spaces, punctuation

// marks, apostrophes, and other non-alphanumeric characters

// and consider upper and lower case characters the same. Do not

// count an empty string as a palindrome.

// Hint: recall that the character class has static methods:

// - boolean isLetterOrDigit(ch)

// - char toUpperCase(ch)

public static boolean isPalindromePhrase(String dateStr)

{

}