Create thread in C#

Steps to create a thread in a C# Program:

First of all import System.Threading namespace, it plays an important role in creating a thread in your program as you have no need to write the fully qualified name of class everytime.
Using System;
Using System.Threading
Now, create and initialize the thread object in your main method.
public static void main()
{
Thread thr = new Thread(job1);
}
Or

You can also use ThreadStart constructor for initializing a new instance.

public static void main()
{
Thread thr = new Thread(new ThreadStart(job1));
}
Now you can call your thread object.
public static void main()
{
Thread thr = new Thread(job1);
thr.Start();
}
Below programs illustrate the practical implementations of above steps:



Example 1:

// C# program to illustrate the
// creation of thread using
// non-static method

using System;

using System.Threading;



public class ExThread {



// Non-static method

public void mythread1()

{

for (int z = 0; z < 3; z++) {

Console.WriteLine("First Thread");

}

}
}


// Driver Class

public class GFG {



// Main Method

public static void Main()

{

// Creating object of ExThread class

ExThread obj = new ExThread();



// Creating thread

// Using thread class

Thread thr = new Thread(new ThreadStart(obj.mythread1));

thr.Start();

}
}
Output:

First Thread
First Thread
First Thread
Explanation: In the above example, we have a class named as ExThread that contain a non-static method named as mythread1(). So we create an instance, i.e. obj of ExThread class and refer it in the constructor of ThreadStart class as given in this statement Thread a = new Thread(new ThreadStart(obj.mythread1));. Using Thread a = new Thread(new ThreadStart(obj.mythread1)); statement we will create a thread named as thr and initialize the work of this thread. By using thr.Start(); statement.

Example 2:

// C# program to illustrate the creation
// of thread using static method

using System;

using System.Threading;



public class ExThread {



// Static method for thread a

public static void thread1()

{

for (int z = 0; z < 5; z++) {

Console.WriteLine(z);

}

}



// static method for thread b

public static void thread2()

{

for (int z = 0; z < 5; z++) {

Console.WriteLine(z);

}

}
}


// Driver Class

public class GFG {



// Main method

public static void Main()

{

// Creating and initializing threads

Thread a = new Thread(ExThread.thread1);

Thread b = new Thread(ExThread.thread2);

a.Start();

b.Start();

}
}
Output