java并发编程概念

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

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