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I have written this program to check a palindrome.

Code:

import javax.swing.JOptionPane;

public class Exercise8_2 {
public static void main(String[] args) {
// Prompt the user to enter a string
String s = JOptionPane.showInputDialog(
null, "Enter a string:",
"Exercise8_2 Input", JOptionPane.QUESTION_MESSAGE);

if (isPalindrome(s)) {
System.out.println(s + " is a palindrome");
}
else {
System.out.println(s + " is not a palindrome");
}
}

/** Check if a string is a palindrome */
public static boolean isPalindrome(String s) {
// The index of the first character in the string
int low = 0;

// The index of the last character in the string
int high = s.length() - 1;

while (low < high) {
if (s.charAt(low) != s.charAt(high))
return false; // Not a palindrome

low++;
high--;
}

return true; // The string is a palindrome
}
}

I now need to rewrite this using a new string that is a reversal of the string and compare the two to determine whether the string is a palindrome. My reverse method needs to use the following header:

public static String reverse(String s)


Thanks for your help. The first part came pretty easy but the reversal is throwing me for a loop.