Create a program named Reverse3 whose Main() method declares three integers name

Question

Create a program named Reverse3 whose Main() method declares three integers named firstInt, middleInt, and lastInt.

Assign the following values to the integers:

23 to firstInt

45 to middleInt

67 to lastInt

Then display the values and pass them to a method named Reverse that accepts them as reference variables, places the first value in the lastInt variable, and places the last value in the firstInt variable.

In the Main() method, display the three variables again, demonstrating that their positions have been reversed.

using static System.Console;
class Reverse3
{
   static void Main()
   {
      // Write your main here
   }
  
   public static void Reverse(ref int a, ref int b, ref int c)
   {
   }

}

Explanation / Answer

using System;

namespace Rextester

{

    public class Reverse3

    {

       public static void Reverse(ref int a, ref int b, ref int c)

       {

           // swap first and last element

           int temp = a;

           a = c;

           c = temp;

       }

        public static void Main(string[] args)

        {

            int firstInt = 23;

            int middleInt = 45;

            int lastInt = 67;

            Reverse(ref firstInt, ref middleInt, ref lastInt);

            Console.Write("firstInt : " + firstInt + " ");

            Console.Write("middleInt : " + middleInt + " ");

            Console.Write("lastInt : " + lastInt + " ");

        }

    }

}

Sample Output

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