using System;

using System.Threading;

public class Program

{

    public static void Main()

    {

        for (int i = 0; i < 30; i++)

        {

            Thread t = new Thread(MetodoVoid);

            t.Start();

            System.Threading.Thread.Sleep(1);

        }

    }

​

    static void MetodoVoid()

    {

        Console.WriteLine("Oi");

    }

}

​