using System;

​

public class Program

{

    public static void Main()

    {

        // parse string to an int

        // will throw an exception if s is not convertable to a number

        string s = "123";

        int i = int.Parse(s); // parse

        // display parse result

        Console.WriteLine("Result of int.Parse : {0}", i);

        string str = "456";

        int x = 0;

        // TryParse will not throw an exception if the input cannot be converted 

        // but the boolean result will indicate success or failure

        bool success = int.TryParse(str, out x);

        if (success)

        {

            Console.WriteLine("SUCCESS! Result of int.TryParse : x = {0}, success = {1}", x, success);

        }

        else

        {

            Console.WriteLine("OOPS! Result of int.TryParse : x = {0}, success = {1}", x, success);

        }

    }

}