use try_catch exception to catch

use try_catch exception to catch wrong entry or calculation or error; however does protect from the no entry error

Now let us try to use a key word that will allow us wrong entries at the command prompt

using System;
//handle System.FormatException generated from
//not entering the feed to Console.ReadLine() at the command prompt
//csc catch_formatexception.cs
class test
{
static void Main()
{
Console.Write("Please enter a number :");
string str = Console.ReadLine();
int n;

try
{
n = Int32.Parse(str);
Console.WriteLine("Here Number your entered no problem");

}
catch(Exception ex)

{
Console.WriteLine("looks like you missed something :"+ str + " you may use ex to complete result" );
}
}
}

You may visit the ugly error alert Link