reverse a number using recursion in c#

Csharp program for reverse a number using recursion . Here problem description and other solutions.

// Include namespace system
using System;
// Csharp program for
// Reverse a number using recursion
public class ReverseNumber
{
	// This is reversing a number elements recursively
	public int reverseNum(int number, int result)
	{
		// Base condition to stop the recursion process
		if (number > 0)
		{
			// Recursive function call
			return this.reverseNum((int)(number / 10), 
                                   result * 10 + (number % 10));
		}
		// When no digit remaining
		return result;
	}
	// This is handling the request process of reverse number digit
	public int reverse(int number)
	{
		// Display given number
		Console.WriteLine("\nBefore Number : [" + number + "]");
		if (number < 0)
		{
			// Handle negative number
			return -this.reverseNum(-number, 0);
		}
		else
		{
			return this.reverseNum(number, 0);
		}
	}
	public static void Main(String[] args)
	{
		var task = new ReverseNumber();
		// Test Case 
		var number = 12345;
		number = task.reverse(number);
		// After reverse	
		Console.WriteLine("After Number  : [" + number + "]");
		number = task.reverse(78942);
		// After reverse	
		Console.WriteLine("After Number  : [" + number + "]");
		number = task.reverse(1020);
		// After reverse	
		Console.WriteLine("After Number  : [" + number + "]");
		number = task.reverse(-28);
		// After reverse	
		Console.WriteLine("After Number  : [" + number + "]");
	}
}

Output

Before Number : [12345]
After Number  : [54321]

Before Number : [78942]
After Number  : [24987]

Before Number : [1020]
After Number  : [201]

Before Number : [-28]
After Number  : [-82]