solve a small encapsulation in C#

[polo_coins]

i want some encapsulation problem

int num;
num=int.parse(Console.Readline());

here i have a problem if user enter a string i get encapsulation how can i solve it in easiest way
my friends told me some function of try() ..catch() but I don't understood it

Thanks Sergey

[LizR]

Then have a look at the helpfile, it has a number of examples.

[polo_coins]

it's hard to understand it,
I don't know what to fill to Catch() parentness
and do i must use throw;

[polo_coins]

I want just to prevent of entering wrong data from user of my program

I mean :

int num;
num="ssss";

this cause encapsulation and I want to prevent it

If somebody can put some code here i will be glad to check it
Thanks Sergey

[LizR]

I guess your last post isnt enough .. you feel you need to ak the same question again?