using System;

​

namespace Übung1

{

    class Txt

    {

        public void txt(string txt1, string txt2)

        {

         txt1 = txt2;

            Console.WriteLine(txt1);

        }

    }

​

public class Program

{

    public static void Main(string[] args)

    {

        Txt text = new Txt();

     text.txt("hallo","Tschüss");

    }

}

}