Multithreading-Synchronizing code blocks

Copyright?liupengcheng
Http://www.cnblogs.com/liupengcheng

/**
* Created by Administrator on 2014/10/24.
* Synchronized lock flag, change the flag bit, has reached the same time only one thread is performing a valid operation.
*/

Copyright?liupengcheng
Http://www.cnblogs.com/liupengcheng

public class TheadDemo5 {
public static void Main (string[] args)
{
ThreadTest t = new threadtest ();
thread T1 = new Thread (t); T1.start ();
Thread t2 = new Thread (t); T2.start ();
thread t3 = new Thread (t); T3.start ();
}
}

Copyright?liupengcheng
Http://www.cnblogs.com/liupengcheng

Class ThreadTest implements Runnable {
private int tickets = 100;
String str = new String ("");

public void Run () {
while (true) {
Synchronized (str) {
if (Tickets > 0) {
try {
Thread.Sleep (10);
} catch (Exception e) {
System.out.println (E.getmessage ());
}
System.out.println (Thread.CurrentThread (). GetName () + "is saling ticket" + tickets--);
}
}
}
}
}

Copyright?liupengcheng
Http://www.cnblogs.com/liupengcheng

/**
* Results are
* Thread-0is saling ticket100
Thread-0is saling ticket99
Thread-0is saling ticket98
Thread-0is saling Ticket97
Thread-0is saling ticket96
Thread-0is saling Ticket95
Thread-2is saling Ticket94
Thread-2is saling ticket93
Thread-2is saling ticket92
Thread-2is saling ticket91
Thread-2is saling Ticket90
Thread-2is saling ticket89
Thread-2is saling ticket88
Thread-2is saling ticket87
Thread-2is saling ticket86
Thread-2is saling ticket85
Thread-2is saling ticket84
Thread-2is saling ticket83
Thread-2is saling ticket82
Thread-2is saling ticket81
Thread-2is saling ticket80
Thread-2is saling ticket79
Thread-2is saling ticket78
Thread-2is saling ticket77
Thread-2is saling ticket76
Thread-2is saling ticket75
Thread-2is saling ticket74
Thread-2is saling ticket73
Thread-2is saling Ticket72
Thread-2is saling ticket71
Thread-2is saling Ticket70
Thread-2is saling ticket69
Thread-2is saling ticket68
Thread-2is saling ticket67
Thread-2is saling ticket66
Thread-2is saling Ticket65
Thread-2is saling Ticket64
Thread-2is saling ticket63
Thread-2is saling ticket62
Thread-2is saling ticket61
Thread-2is saling Ticket60
Thread-2is saling ticket59
Thread-2is saling ticket58
Thread-2is saling ticket57
Thread-2is saling ticket56
Thread-2is saling ticket55
Thread-2is saling Ticket54
Thread-2is saling Ticket53
Thread-2is saling ticket52
Thread-2is saling Ticket51
Thread-2is saling Ticket50
Thread-2is saling ticket49
Thread-2is saling ticket48
Thread-2is saling ticket47
Thread-2is saling ticket46
Thread-2is saling Ticket45
Thread-2is saling Ticket44
Thread-2is saling ticket43
Thread-2is saling Ticket42
Thread-2is saling ticket41
Thread-2is saling TICKET40
Thread-2is saling ticket39
Thread-2is saling Ticket38
Thread-2is saling Ticket37
Thread-2is saling Ticket36
Thread-2is saling Ticket35
Thread-2is saling Ticket34
Thread-2is saling Ticket33
Thread-2is saling Ticket32
Thread-2is saling ticket31
Thread-2is saling Ticket30
Thread-2is saling ticket29
Thread-2is saling Ticket28
Thread-2is saling Ticket27
Thread-2is saling Ticket26
Thread-2is saling Ticket25
Thread-2is saling Ticket24
Thread-2is saling ticket23
Thread-2is saling ticket22
Thread-2is saling ticket21
Thread-2is saling ticket20
Thread-2is saling ticket19
Thread-2is saling ticket18
Thread-2is saling ticket17
Thread-2is saling ticket16
Thread-2is saling ticket15
Thread-2is saling ticket14
Thread-2is saling ticket13
Thread-2is saling ticket12
Thread-2is saling ticket11
Thread-2is saling ticket10
Thread-2is saling Ticket9
Thread-2is saling Ticket8
Thread-2is saling Ticket7
Thread-2is saling Ticket6
Thread-2is saling Ticket5
Thread-2is saling Ticket4
Thread-2is saling Ticket3
Thread-2is saling Ticket2
Thread-2is saling Ticket1

*/

Copyright?liupengcheng
Http://www.cnblogs.com/liupengcheng

Multithreading-Synchronizing code blocks