Has to be written in C#

You Do It Using Reference Parameters You use reference parameters when you want a method to have access to the memory address of arguments in a calling method. For example, suppose that you have two values and you want to exchange them (or swap them), making each equal to the value of the other. Because you want to change two values, a method that accepts copies of arguments will not work-a method can return one value at most. Therefore, you can use reference parameters to provide your method with the actual addresses of the values you want to change 1. Open your editor and begin a program named SwapProgram as follows: using static System.Console; class SwapProgram static void MainO 2. Declare two integers, and display their values. Call the SwapO method, and pass in the addresses of the two variables to swap. Because the parameters already have assigned values, and because you want to alter those values (continues)