using System;
using System.Collections.Generic;
using System.Text;
using System.Timers;
class Program {
static int counter = 0;
static string displayString = "This string will appear one letter at a time. ";
static void Main(string[] args) {
Timer myTimer = new Timer(100);
myTimer.Elapsed += new ElapsedEventHandler(WriteChar);
myTimer.Start();
Console.ReadKey();
}
static void WriteChar(object source, ElapsedEventArgs e) {
Console.Write(displayString[counter++ % displayString.Length]);
}
}