Java concurrency, Thread priority

1  Packagecom.xt.thinks21_2;2 3 ImportJava.util.concurrent.ExecutorService;4 Importjava.util.concurrent.Executors;5 6 /**7 * Java Thread-priority test8  * 9  * @authorAdministratorTen  * One  */ A  Public classThreadprioritytestImplementsRunnable { -     Private intCountdown = 5; -     Private intPriority ; the     Private volatile DoubleD; -  -      PublicThreadprioritytest (intPriority ) { -          This. Priority =Priority ; +     } -  + @Override A      PublicString toString () { at         //TODO auto-generated Method Stub -         returnThread.CurrentThread () + ":" +Countdown; -     } -  - @Override -      Public voidrun () { in         //TODO auto-generated Method Stub - Thread.CurrentThread (). SetPriority (priority); to          while(true) { +              for(inti = 0; i < 10000000; i++) { -D + = (Math.PI + MATH.E)/(Double) I; the                 if(i% 1000 = = 0) * Thread.yield (); $             }Panax NotoginsengSystem.out.println ( This); -             if(--countdown = = 0) the                 return; +         } A     } the  +      Public Static voidMain (string[] args) { -Executorservice es =Executors.newcachedthreadpool (); $          for(inti = 0; I < 5; i++) $Es.execute (Newthreadprioritytest (thread.min_priority)); -Es.execute (Newthreadprioritytest (thread.max_priority)); - Es.shutdown (); the     } -}

Setting thread priority can effectively adjust the order of thread Execution (irregular) when the thread executes time-consuming operations internally.

Java concurrency, Thread priority