C# Threading Join() method

It causes all the calling threads to wait until the current thread (joined thread) is terminated or completes its task.

Example

snippet

using System;
using System.Threading;
public class MyThread
{
    public void Thread1()
    {
        for (int i = 0; i < 5; 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));
        Thread t3 = new Thread(new ThreadStart(mt.Thread1));
        t1.Start();
        t1.Join();
        t2.Start();
        t3.Start();
    }
}

Output

0 1 2 3 4 0 0 1 1 2 2 3 3 4 4