Checking to see if a string is a palindrome or not

[wazza]

I am very close to finishing my one practice problem that deals with a palindrome and a string parameter and I am stuck with the main method to call the method. Every time I compile my code it compiles, but then when I go to input data, it keeps on running and does not give me a result. Can anyone aid in me in what I need to do to get it to return the result? The problem just asks to create a method that checks if it is a palindrome, my main method to test it is what is giving me trouble.This is my code:\[code\]import java.util.*;public class TestisPalindrome{ public static boolean isPalindrome(String str) { int left = 0; int right = str.length() -1; while(left < right) { if(str.charAt(left) != str.charAt(right)) { return false; } } left ++; right --; return true; } public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.println("Enter a string to see if it is a palindrome or not: "); String st1 = scan.nextLine(); System.out.println(isPalindrome(st1)); }}\[/code\]