线程的四种状态线程
1.新建 2.就绪,3,死亡4.阻塞继承
创建线程的途径线程池
1.继承Thread 2.实现runnable方法
创建线程池的几种方法vi
ExecutorService executorService = Executors.newCachedThreadPool();阻塞
ExecutorService executorService = Executors.newFixedThreadPool(3);sync
ExecutorService executorService = Executors.newSingleThreadExecutor();new
加锁的方式synchronized
synchronized关键字 Lock加锁ab