Mode 10-twophasetermination

Come to Java multi-thread design mode

Two-phase termination, job in progress -- termination in progress -- end

Don't put aside half of the tasks to be processed, so we can end it in a hurry and wait for it to be processed.

  Public   class  main { Public   static   void  main (string [] ARGs) {system. out. println (" main: Begin ");  try  {countupthread T =  New  countupthread (); T. start (); thread. sleep (1, 10000); system. out. println (" main: shutdownrequest ");  T. shutdownrequest ();  system. out. println (" main: Join ");  T. join (); }< span style = "color: # 0000ff"> catch  (interruptedexception e) {e. printstacktrace ();} system. out. println (" main: End ") ;}

 Package Sample; Public   Class Countupthread Extends Thread { // Counter value      Private   Long Counter = 0; // True if a termination request has been sent      Private   Volatile   Boolean Shutdownrequested = False ; // Terminate the request   Public VoidShutdownrequest () {shutdownrequested =True; Interrupt ();}      // Determine whether the final request has been sent      Public   Boolean Isshutdownrequested (){ Return Shutdownrequested ;} // Action      Public   Final   Void Run (){ Try{While(! Shutdownrequested) {dowork ();}}Catch(Interruptedexception e ){}Finally{Doshutdown ();} } // Job      Private   Void Dowork () Throws Interruptedexception {counter ++; system. Out. println (" Dowork: Counter = & Quot; + counter); thread. Sleep (500 );} // Terminate the Processing   Private VoidDoshutdown () {system. Out. println ("Doshutdown: Counter ="+ Counter );} }