Java thread pool instance

This mileage demonstrates how to use the built-in multi-threaded mechanism of JDK. A simple routine, with comments, demonstrates the method of using JDK to implement the thread pool and is suitable for beginners.

1. Package com. cjt. thread. threadpool;
3. Import java. util. Concurrent. executorservice;
4. Import java. util. Concurrent. executors;
7. Public class concurrent4threadpool {// class used to manage threads and provide thread services
9. Private executorservice EXE = NULL; // Thread Pool
10. Private Static final int pool_size = 4; // thread pool capacity
12. Public concurrent4threadpool (){
13. EXE = executors. newfixedthreadpool (pool_size); // create a thread pool
14. System. Out. println ("the server is ready ...");
15. }
17. Public void server (){
18. Int I = 0;
19. While (I <100 ){
20. Exe.exe cute (new worker (I); // run the thread pool
21. I ++;
22. }
23. }
25. Public static void main (string [] ARGs ){
26. New concurrent4threadpool (). Server ();
27. }
29. Class worker implements runnable // work thread, the work to be done by the thread is implemented in this class
30. {
31. Int ID;
33. Worker (int id ){
34. This. ID = ID;
35. }
37. Public void run (){
38. System. Out. println ("task" + ID + ": Start"); // the specific task
39. }
40. }
42. }