Swapping Program in C#

 

 

 

 1) Swapping two numbers using a third variable.

using System;

namespace SwappingPrograms

{

public class Program

{

public static void Main()

{

int number1 = 10, number2 = 20, temp = 0;

Console.WriteLine($"Before SWapping number1= {number1}, number2 = {number2}");

temp = number1; //temp=10

number1 = number2; //number1=20

number2 = temp; //number2=10

Console.WriteLine($"After swapping number1= {number1}, number2 = {number2}");

Console.ReadLine();

}

}

}

 

 

2)  Swap two integers without using the third variable.

using System;
namespace SwappingPrograms
{
    public class Program
    {
        public static void Main()
        {
            int number1 = 10, number2 = 20;
            Console.WriteLine($"Before SWapping number1= {number1}, number2 = {number2}");
            number1 = number1 * number2; //number1=200 (10*20)      
            number2 = number1 / number2; //number2=10 (200/20)      
            number1 = number1 / number2; //number1=20 (200/10)    
            Console.WriteLine($"After swapping number1= {number1}, number2 = {number2}");
            Console.ReadLine();
        }
    }
}

Output :