Use Join() to wait for threads to end : Thread Join « Thread « C# / CSharp Tutorial

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C# / CSharp Tutorial » Thread » Thread Join 
20.5.1.Use Join() to wait for threads to end
using System; 
using System.Threading; 
 
class MyThread { 
  public int count; 
  public Thread thrd; 
 
  public MyThread(string name) { 
    count = 0; 
    thrd = new Thread(this.run); 
    thrd.Name = name; 
    thrd.Start(); 
  } 
 
  void run() { 
    Console.WriteLine(thrd.Name + " starting."); 
 
    do { 
      Thread.Sleep(500); 
      Console.WriteLine("In " + thrd.Name + 
                        ", count is " + count); 
      count++; 
    } while(count < 10); 
 
    Console.WriteLine(thrd.Name + " terminating."); 
  } 
} 
 
class MainClass { 
  public static void Main() { 
    Console.WriteLine("Main thread starting."); 
 
    MyThread mt1 = new MyThread("Child #1"); 
    MyThread mt2 = new MyThread("Child #2"); 
    MyThread mt3 = new MyThread("Child #3"); 
 
    mt1.thrd.Join(); 
    Console.WriteLine("Child #1 joined."); 
 
    mt2.thrd.Join(); 
    Console.WriteLine("Child #2 joined."); 
 
    mt3.thrd.Join(); 
    Console.WriteLine("Child #3 joined."); 
 
    Console.WriteLine("Main thread ending."); 
  } 
}
 
Main thread starting.
Child #1 starting.
Child #2 starting.
Child #3 starting.
In Child #1, count is 0
In Child #2, count is 0
In Child #3, count is 0
In Child #1, count is 1
In Child #2, count is 1
In Child #3, count is 1
In Child #1, count is 2
In Child #2, count is 2
In Child #3, count is 2
In Child #1, count is 3
In Child #2, count is 3
In Child #3, count is 3
In Child #1, count is 4
In Child #2, count is 4
In Child #3, count is 4
In Child #1, count is 5
In Child #2, count is 5
In Child #3, count is 5
In Child #1, count is 6
In Child #2, count is 6
In Child #3, count is 6
In Child #1, count is 7
In Child #2, count is 7
In Child #3, count is 7
In Child #1, count is 8
In Child #2, count is 8
In Child #3, count is 8
In Child #1, count is 9
Child #1 terminating.
In Child #2, count is 9
Child #2 terminating.
In Child #3, count is 9
Child #3 terminating.
Child #1 joined.
Child #2 joined.
Child #3 joined.
Main thread ending.
20.5.Thread Join
20.5.1.Use Join() to wait for threads to end
20.5.2.Threads Joining
20.5.3.Thread joins
20.5.4.Block until a thread finishes, or timeout after 2 seconds
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