types of arguments Value Type and Reference Type

• Call by Value – Value passed will get modified only inside the function , and it returns the same value whatever it is passed it into the function.
• Call by Reference – Value passed will get modified in both inside and outside the functions and it returns the same or different value.

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

namespace ValRefType
{
    class Program
    {
        public void ValueTypeSWAP(string s,string s1)
        {
            string temp = s1;
            s1 = s;
            s = temp;
            Console.WriteLine("Swaping Name,SurName: {0} {1}", s, s1);
       
        }
        public void ReferenceTypeSWAP(ref string s,ref string s1)
        {
            string temp = s1;
            s1 = s;
            s = temp;
            Console.WriteLine("Swaping Name,SurName: {0} {1}", s, s1);

        }
        static void Main(string[] args)
        {
            string name = "vinoth";
            string fatname = "myilsamy";
            Console.WriteLine("Original Name,SurName: {0} {1}", name, fatname);
            Program Pro = new Program();
            Pro.ValueTypeSWAP(name, fatname);
            Console.WriteLine("Value Type After Swaped Name,SurName: {0} {1}", name, fatname);

            Pro.ReferenceTypeSWAP(ref  name, ref  fatname);
            Console.WriteLine("Ref Type After Swaped Name,SurName: {0} {1}", name, fatname);
            Console.ReadKey();
        }
    }
}