Sleep methods are generally used for suspends thread for specified time and after that time it will notify automatically in process. Abort method are used to terminate the threads.

Example:  

To use these method use System.Threading namespace and writes the following code.

using System.Threading;
 
namespace ThreadTest
{
    class Program
    {
        static voidMain(string[] args)
        {
            // Creating thread object to strat it
            Thread threadB= newThread(ThreadB);
            Thread threadC= newThread(ThreadC);
            Console.WriteLine("Threads started :");
            // Assign thread name
            threadB.Name= "Child thread";
            // Start thread B
            threadB.Start();
             threadC.Start();
            // join the Second thread after finishing the first thread
             threadB.Join();
              
            //Assign main thread name
            Thread.CurrentThread.Name= "Main Thread";
            //Thread A executes 10 times
            for (inti=0; i<10; i++)
            {
                if (i==4)
                    // Join thread c 
                    threadC.Join();
                if (i==5)
                {
                    // Terminate thread C
                    threadC.Abort();
                }
                Console.WriteLine(Thread.CurrentThread.Name);
                Thread.Sleep(100);
            }
         
            Console.WriteLine("Threads completed");
            Console.ReadKey();
        }
        public staticvoidThreadB()
        {
           // Executes thread B 10 times
          for(inti=0;i<10;i++)
          {
              // Suspends thread for 2 seconds
              Thread.Sleep(200);
             Console.WriteLine("Thread B");
          }
        }
        public staticvoidThreadC()
        {
            // Executes thread B 10 times
            for (inti=0; i<20; i++)
            {
                // Suspends thread for 2 seconds
                Thread.Sleep(200);
                Console.WriteLine("Thread C");
            }
        }
    }
}
 

Output: