In this code snippet, we will see how to Swap 2 Numbers in C#. This C# program provides an easy way to sway 2 numbers using temp variable.

using System;
namespace SampleProgram
{
    class SwapNumbers
    {
        static void Main(string[] args)
        {
            // Declaration
            int number1;
            int number2;
            int temp;
            // Capture input
            Console.Write("\nEnter the First Number : ");
            number1 = int.Parse(Console.ReadLine());
            Console.Write("\nEnter the Second Number : ");
            number2 = int.Parse(Console.ReadLine());
            // Print numbers before swaping
            Console.Write("\nBefore Swapping : ");
            Console.Write("\nFirst Number : " + number1);
            Console.Write("\nSecond Number : " + number2);
            Console.Write("\n\n");
            // Swap numbers using temp variable
            temp = number1;
            number1 = number2;
            number2 = temp;
            // Print numbers after swaping
            Console.Write("\nAfter Swapping : ");
            Console.Write("\nFirst Number : " + number1);
            Console.Write("\nSecond Number : " + number2);
            Console.ReadKey();
        }
    }
}

Output:

Enter the First Number : 25

Enter the Second Number : 60

Before Swapping :
First Number : 25
Second Number : 60


After Swapping :
First Number : 60
Second Number : 25