Types And Variables

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TypesAndVariables
{
    class Program
    {
        static void Main(string[] args)
        {
            //Value Types
            //Console.WriteLine("Hello World!");             
            int number1 = 2147483647;               //it takes integer value of between -2147483648, 2147483647 //4 Byte - 32 Bit
            long number2 = 999999999999999999;      //-9*10^19 to 9*10^19 //8 Byte - 64 Bit
            short number3 = 32767;                  //-32767 to 32767   //2 Byte - 16 Bit
            byte number4 = 255;                     //0 to 255 //1 Byte - 8 Bit

            double number5 = 10.432432;                  //it using for decimally values (15 significant digits) //64 Bit
            decimal number6 = 10.465489489M;             //it's using for precision measurement like money //128-bit

            bool condition = true;  //true or false
            char character = 'A';   //character can be convert to int 

            //Enum use for prevent to magic string
            //if (Days.Friday == example) ;    // we shouldn't use like if("Friday") cause if we want to change we have to change every row

            var number7 = 10;   //var is a faceless value. it takes the identity of the given value.
            number7 = 'B';  //So it's still int
            //number7 = "Example" //But it can't take unconverted value 


            Console.WriteLine("Number1 is {0}", number1);
            Console.WriteLine("Number2 is {0}", number2);
            Console.WriteLine("Number3 is {0}", number3);
            Console.WriteLine("Number4 is {0}", number4);
            Console.WriteLine("Number5 is {0}", number5);
            Console.WriteLine("***********************");
            Console.WriteLine("Character is : {0} and Character ASCI Code is : {1}",character,(int)character);
            Console.WriteLine(Days.Friday);
            Console.WriteLine((int)Days.Friday);    //it return index of Friday
            Console.WriteLine("Number7 is {0}", number7);
            Console.ReadLine();
        }

        enum Days
        {
            Monday,Tuesday,Wednesday,Thursday,Friday,Saturday,Sunday
        }    
        
        enum Days2
        {
            Monday=10,Tuesday,Wednesday,Thursday,Friday=18,Saturday,Sunday  //We can change index
        }
    }
}