多線程建立線程池管理線程

import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors;

/** *

• @author hxm

*/ public class TestThread { public static void main(String args[]){ //建立一個可重用固定線程數的線程池 ExecutorService pool = Executors.newFixedThreadPool(4);

//建立一個使用單個 worker 線程的 Executor，以無界隊列方式來運行該線程。

// ExecutorService pool = Executors.newSingleThreadExecutor(); //建立實現了runnable接口的對象 Thread t1 = new MyThread(); Thread t2 = new MyThread(); Thread t3 = new MyThread(); Thread t4 = new MyThread(); Thread t5 = new MyThread(); //將線程放入池中進行執行 pool.execute(t1); pool.execute(t2); pool.execute(t3); pool.execute(t4); pool.execute(t5); //關閉線程池 pool.shutdown(); } } class MyThread extends Thread{

@Override
  public void run(){
     System.out.println(Thread.currentThread().getName()+" is running...");
 }

}

輸出結果: pool-1-thread-1 is running... pool-1-thread-1 is running... pool-1-thread-3 is running... pool-1-thread-2 is running... pool-1-thread-4 is running...