determine whether an integer ia a palindrome in java

/**
 * @author lautturi.com 
 * Java example: check palindrome number in java
 */

import java.util.*;

public class Lautturi {
	public static boolean isPalindrome(int x) {
		String str = Integer.toString(x);
		String reverse = new StringBuilder(str).reverse().toString();
		return str.equals(reverse);
	}

	public static void main(String[] args) {

		if (isPalindrome(1234554321))
			System.out.println("1234554321 is a palindrome.");

	}
}

output:

1234554321 is a palindrome.