public class MyThread extends Thread {
 @Override
 publicvoid run() {
 System.out.println(Thread.currentThread().getName() + "正在執(zhí)行");
 }
}

ExecutorService pool = Executors. newSingleThreadExecutor();
 Thread t1 = new MyThread();
 Thread t2 = new MyThread();
 Thread t3 = new MyThread();
 //將線程放入池中進(jìn)行執(zhí)行
 pool.execute(t1);
 pool.execute(t2);
 pool.execute(t3);
 //關(guān)閉線程池
 pool.shutdown();

pool-1-thread-1正在執(zhí)行
pool-1-thread-1正在執(zhí)行
pool-1-thread-1正在執(zhí)行

ExecutorService pool = Executors.newFixedThreadPool(3);
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(jìn)行執(zhí)行
 pool.execute(t1);
 pool.execute(t2);
 pool.execute(t3);
 pool.execute(t4);
 pool.execute(t5);
pool.shutdown();

pool-1-thread-1正在執(zhí)行
pool-1-thread-2正在執(zhí)行
pool-1-thread-1正在執(zhí)行
pool-1-thread-2正在執(zhí)行

ExecutorService pool = Executors.newCachedThreadPool();
 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(jìn)行執(zhí)行
 pool.execute(t1);
 pool.execute(t2);
 pool.execute(t3);
 pool.execute(t4);
 pool.execute(t5);
 //關(guān)閉線程池
 pool.shutdown();

pool-1-thread-2正在執(zhí)行
pool-1-thread-4正在執(zhí)行
pool-1-thread-3正在執(zhí)行
pool-1-thread-1正在執(zhí)行
pool-1-thread-5正在執(zhí)行

ScheduledExecutorService pool = Executors.newScheduledThreadPool(2);
pool.scheduleAtFixedRate(new Runnable() {//每隔一段時(shí)間就觸發(fā)異常
  @Override
  public void run() {
   //throw new RuntimeException();
   System.out.println("================");
  }
 }, 1000, 2000, TimeUnit.MILLISECONDS);
pool.scheduleAtFixedRate(new Runnable() {//每隔一段時(shí)間打印系統(tǒng)時(shí)間，證明兩者是互不影響的
  @Override
  public void run() {
   System.out.println("+++++++++++++++++");
  }
 }, 1000, 2000, TimeUnit.MILLISECONDS);

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