How to reverse a number as an integer and not as a string?

Question

I came across a question \"How can one reverse a number as an integer and not as a string?\" Could anyone please help me to find out the answer? Reversal should reverse the

Answer 1

As per Pritam Karmakar comment , Yes this will not work when given number has 0 at end. If you pass number as 150 it will return 51 not 051. so i had write code to display number in Reverse order as per user input please check this.

int reverseNum = 0, reminder, num;
        Console.WriteLine("Enter Number to Reverse:");
        int.TryParse(Console.ReadLine(), out num);
        bool isZero = false;
        int cnt=0;
        while (num > 0)
        {
            reminder = num % 10;
            reverseNum = (reverseNum * 10) + reminder;
            num = num / 10;
            if (reverseNum == 0)
                isZero = true;                
            cnt++;
        }
        if (isZero)
        {
            Console.WriteLine(reverseNum.ToString().PadLeft(cnt, '0'));
        }
        else
        {
            Console.WriteLine(reverseNum);
        }
        Console.ReadKey();