判断一个数是否为回文

package com.common.test;

/**
 * Created by Zetting on 2017/5/30.
 */
public class TestUtil {

    /**
     * 判断一个对象是不是回文
     * @param num
     * @return
     */
    public static boolean isHW(long num){
        long sum = 0 ;

        long initNum = num;

        while(num > 0){
            sum = sum * 10 + num % 10 ;
            num /= 10;
        }

        if(sum == initNum){
            return true;
        }

        return false;
    }
}