Palindrome Number

public class Palindrome_Number {

	public static void main(String[] args) {
		Palindrome_Number out = new Palindrome_Number();
		Solution s = out.new Solution();

		System.out.println(s.isPalindrome(12321));
		System.out.println(s.isPalindrome(Integer.MAX_VALUE));
	}

	public class Solution {
		public boolean isPalindrome(int x) {
			if(x < 0) {
				return false;
			}

			long rev = 0;

			int y = x;
			while(y > 0) {
				int remainder = y % 10;
				y /= 10;

				rev = rev * 10 + remainder;
			}

			if(rev > Integer.MAX_VALUE) {
				return false;
			}

			return ((int) rev) == x;
		}
	}

	public class Solution2 {
	    public boolean isPalindrome(int x) {
	        if (x < 0) {
	            return false;
	        }

	        int xorig = x;
	        int rev = 0;
	        while(x > 0) {
	            rev = rev * 10 + x % 10;
	            x /= 10;
	        }

	        return rev == xorig;
	    }
	}
}