Lock Statement In C# Language

Introduction

Lock statement is very useful statement in c# language.  Lock statement hold the object  and then process to synchronization way. It is use to multi threads application. If current thread execute a lock of code then this code compile without interruption by another thread. The lock statement obtains a mutual exclusion lock for a given object so that one thread executes the code block at a time and exits the code block after releasing the lock.

Example

using System;

using System.Threading;

 

namespace lock_statement_in_c_sharp

{

    class lock_class     //create class

    {

        static readonly object obj = new object();  //create readonly object

 

        public static void display() //create function

        {

            lock (obj)  //lock readonly object

            {

                Thread.Sleep(400); //sleep 400 milliseconds

                Console.WriteLine("Welcome");

            }

        }

    }

    class Program

    {

        static void Main(string[] args)

        {

            ThreadStart str = new ThreadStart(lock_class.display); //create thread

            for (int i = 0; i < 5; i++)

            {

                new Thread(str).Start(); //display function call by the thread

            }

        }

    }

}             

Output: