A c # program that causes deadlocks

Write a C # program that will cause deadlocks to help you understand the meaning of deadlocks:
 

Using System;
Using System. Collections. Generic;
Using System. Text;
Using System. Threading;

Namespace @ lock
{
Class Program
{
Public static object lock_A = new object ();
Public static object lock_ B = new object ();
Public void DoSomething ()
{

Lock (lock_A)
{
Thread. Sleep (500 );
Console. WriteLine ("I'm lock_A, I want lock_ B ");
Lock (lock_ B)
{
Console. WriteLine ("No such sentence indicates a deadlock ");
}
}
}

Static void Main ()
{
Program a = new Program ();
Thread th = new Thread (new ThreadStart (a. DoSomething ));
Th. Start ();

Lock (lock_ B)
{

Console. WriteLine ("I'm lock_ B, I want lock_A ");
Lock (lock_A)
{
Console. WriteLine ("No such sentence indicates a deadlock ");
}
}

Console. WriteLine ("No such sentence indicates a deadlock ");
}

}
}