什么是java线程池框架

1、什么是java线程池框架什么是java线程池框架多线程是程序员面试时常常会面对的问题，对多线程概念的掌握和理解水平，也常常被用来衡量一个人的.编程实力。不错，普通的多线程已经不容易了。一、线程池结构图二、示例定义线程接口6public class MyThread extends Thread Overridepublicvoid run() System.out.println(Thread.currentThread().getName() + 正在执行);1：newSingleThreadExecutor10ExecutorService pool = Executors. newSin

2、gleThreadExecutor();Thread t1 = new MyThread();Thread t2 = new MyThread();Thread t3 = new MyThread();/将线程放入池中进行执行pool.execute(t1);pool.execute(t2);pool.execute(t3);/关闭线程池pool.shutdown();输入结果：3pool-1-thread-1正在执行pool-1-thread-1正在执行pool-1-thread-1正在执行2：newFixedThreadPool13ExecutorService pool = Execut

3、ors.newFixedThreadPool(3);Thread t1 = new MyThread();Thread t2 = new MyThread();Thread t3 = new MyThread();Thread t4 = new MyThread();Thread t5 = new MyThread();/将线程放入池中进行执行pool.execute(t1);pool.execute(t2);pool.execute(t3);pool.execute(t4);pool.execute(t5);pool.shutdown();输入结果：4pool-1-thread-1正在执行p

4、ool-1-thread-2正在执行pool-1-thread-1正在执行pool-1-thread-2正在执行3 :newCachedThreadPool14ExecutorService pool = Executors.newCachedThreadPool();Thread t1 = new MyThread();Thread t2 = new MyThread();Thread t3 = new MyThread();Thread t4 = new MyThread();Thread t5 = new MyThread();/将线程放入池中进行执行pool.execute(t1);p

5、ool.execute(t2);pool.execute(t3);pool.execute(t4);pool.execute(t5);/关闭线程池pool.shutdown();输入结果：5pool-1-thread-2正在执行pool-1-thread-4正在执行pool-1-thread-3正在执行pool-1-thread-1正在执行pool-1-thread-5正在执行4 :ScheduledThreadPoolExecutor14ScheduledExecutorService pool = Executors.newScheduledThreadPool(2);pool.sched

6、uleAtFixedRate(new Runnable() /每隔一段时间就触发异常 Override public void run() /throw new RuntimeException(); System.out.println(=); , 1000, 2000, TimeUnit.MILLISECONDS);pool.scheduleAtFixedRate(new Runnable() /每隔一段时间打印系统时间，证明两者是互不影响的 Override public void run() System.out.println(+); , 1000, 2000, TimeUnit.MILLISECONDS)