Palindrome No. using while loop

Write a program to check a no whether it is a palindrome or not … USING WHILE LOOP.

import java.io.*;

class Palindrome

{

  public static void main()throws IOException

  {

    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    System.out.print("Enter a number : ");

    int n = Integer.parseInt(br.readLine());

    int rev = 0, a = n, d = 0;

    while( a>0 )

    {

      d = a % 10;

      rev = rev * 10 + d;

      a = a / 10;

    }

    if( rev == n)

      System.out.println("The number is a Palindrome");

    else

      System.out.println("The number is NOT a Palindrome");

  }

}