Swap two numbers in c sharp or Swap two numbers in C# or Swap Two Numbers in c sharp without using temp variable or Swap Two Numbers in c sharp without using third variable

Step 1:- Method

        public void PrintSwapTwoNumber1()

        {

            Console.WriteLine("Enter first number");

            int Num1 = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Enter second number");

            int Num2 = Convert.ToInt32(Console.ReadLine());

            int temp;

            Console.WriteLine("Before Swap\n");

            Console.WriteLine("Num1 Values: {0}", +Num1);

            Console.WriteLine("Num2 Values: {0}", +Num2);

            Console.WriteLine("");

            temp = Num1;

            Num1 = Num2;

            Num2 = temp;

            Console.WriteLine("After Swap\n");

            Console.WriteLine("Num1 Values: {0}", +Num1);

            Console.WriteLine("Num2 Values: {0}", +Num2);

        }

        public void PrintSwapTwoNumber2()

        {

            Console.WriteLine("Enter first number");

            int Num1 = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Enter second number");

            int Num2 = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Before Swap\n");

            Console.WriteLine("Num1 Values: {0}", +Num1);

            Console.WriteLine("Num2 Values: {0}", +Num2);

            Console.WriteLine("");

            Num1 = Num1 + Num2;

            Num2 = Num1 - Num2;

            Num1 = Num1 - Num2;

            Console.WriteLine("After Swap\n");

            Console.WriteLine("Num1 Values: {0}", +Num1);

            Console.WriteLine("Num2 Values: {0}", +Num2);

        }

Step 2:- Complete code

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace Console_Application_Demo

{

    class Program

    {

        public void PrintSwapTwoNumber1()

        {

            Console.WriteLine("Enter first number");

            int Num1 = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Enter second number");

            int Num2 = Convert.ToInt32(Console.ReadLine());

            int temp;

            Console.WriteLine("Before Swap\n");

            Console.WriteLine("Num1 Values: {0}", +Num1);

            Console.WriteLine("Num2 Values: {0}", +Num2);

            Console.WriteLine("");

            temp = Num1;

            Num1 = Num2;

            Num2 = temp;

            Console.WriteLine("After Swap\n");

            Console.WriteLine("Num1 Values: {0}", +Num1);

            Console.WriteLine("Num2 Values: {0}", +Num2);

        }

        public void PrintSwapTwoNumber2()

        {

            Console.WriteLine("Enter first number");

            int Num1 = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Enter second number");

            int Num2 = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Before Swap\n");

            Console.WriteLine("Num1 Values: {0}", +Num1);

            Console.WriteLine("Num2 Values: {0}", +Num2);

            Console.WriteLine("");

            Num1 = Num1 + Num2;

            Num2 = Num1 - Num2;

            Num1 = Num1 - Num2;

            Console.WriteLine("After Swap\n");

            Console.WriteLine("Num1 Values: {0}", +Num1);

            Console.WriteLine("Num2 Values: {0}", +Num2);

        }

       

        static void Main(string[] args)

        {

            Program p = new Program();

            p.PrintSwapTwoNumber1();

      //Without using temp variable

            p.PrintSwapTwoNumber2();

            Console.ReadLine();

        }

    }

}

Example:-