The Thread class
Learn to create threads with System.Threading.Thread.
The Thread class
The System.Threading.Thread class represents an operating-system level thread. Thread t = new Thread(Work); creates a new thread; t.Start(); starts it.
Each thread has its own stack and runs independently. Modern C# prefers Task/async in most cases, but Thread is still used for low-level control.
Creating a thread
The Thread constructor takes a ThreadStart or ParameterizedThreadStart delegate. new Thread(() => { /* work */ }) is the most common form.
Once started, a thread runs in parallel with the main thread; both advance in their own flow. When ordering matters, you need synchronization (lock, Interlocked, signals).
Exercise Start a thread and Join
Create a Thread t = new Thread(() => { });. Start it with t.Start();, wait with t.Join();. Finally print Console.WriteLine("Done");.
Show example solution
Thread t = new Thread(() => { }); t.Start(); t.Join(); Console.WriteLine("Done");
Example solution:
using System;
using System.Threading;
class Program
{
static void Main()
{
Thread t = new Thread(() => { });
t.Start();
t.Join();
Console.WriteLine("Done");
}
}Test yourself
-
How is a thread started?
- Start()
- Run()
- Begin()
- Execute()
Show answer
Start() — Correct. The Start() method runs the thread.
-
Create a thread
Thread t = new ____(() => { Console.WriteLine("İş"); });Show answer
Thread t = new Thread(() => { Console.WriteLine("İş"); }); -
What does the Thread constructor take?
- An int
- A string
- A delegate (ThreadStart)
- An array
Show answer
A delegate (ThreadStart) — Correct. Thread takes a delegate (ThreadStart).