Using the Checked and Unchecked Operators

Checked operator using prevent Overflow, Unchecked operator using do overflow.

Using Unchecked operator in mathematical operation:

class Listing4_5

{

public static void Main()

{

int Int1;

int Int2;

int Int1PlusInt2;

Int1 = 2000000000;

Int2 = 2000000000;

Int1PlusInt2 = Int1 + Int2;

System.Console.WriteLine(Int1PlusInt2);

}

}

 
The above code is run in program is overflow.

Using checked operator in mathematical operation:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

 

namespace ConsoleApplication3

{

    class Program

    {

        static void Main(string[] args)

        {

            try

            {

                int Int1;

                int Int2;

                int Int1PlusInt2;

                Int1 = 2000000000;

                Int2 = 2000000000;

                Int1PlusInt2 = checked(Int1 + Int2);

            }

            catch (Exception ex)

            {

                System.Console.WriteLine(ex);

                Console.ReadLine();

            }

        }

    }

}

 
The above code is using in checked operator so its prevent overflow.