The Sleep() method suspends the current thread for the specified milliseconds. So, other threads get the chance to start execution.
using System; using System.Threading; public class MyThread { public void Thread1() { for (int i = 0; i < 10; i++) { Console.WriteLine(i); Thread.Sleep(200); } } } public class ThreadExample { public static void Main() { MyThread mt = new MyThread(); Thread t1 = new Thread(new ThreadStart(mt.Thread1)); Thread t2 = new Thread(new ThreadStart(mt.Thread1)); t1.Start(); t2.Start(); } }