Checked and Unchecked

   



using System;
using System.Collections.Generic;
using System.Text;

class Program {
    static void Main(string[] args) {
        Console.WriteLine("Max value of byte is {0}.", byte.MaxValue);
        Console.WriteLine("Min value of byte is {0}.", byte.MinValue);
        byte b1 = 100;
        byte b2 = 250;

        try {
            checked {
                byte sum = (byte)(b1 + b2);
                byte b4, b5 = 100, b6 = 200;
                b4 = (byte)(b5 + b6);
                Console.WriteLine("sum = {0}", sum);
            }
        } catch (OverflowException e) {
            Console.WriteLine(e.Message);
        }

        unchecked {
            byte sum = (byte)(b1 + b2);
            Console.WriteLine("sum = {0}", sum);
        }
    }
}