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:
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