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什么是线程池是一种基于池化思想管理线程的工具。池化技术：池化技术简单点来说，就是提前保存大量的资源，以备不时之需。比如我们的对象池，数据库连接池等。线程池好处我们为什么要使用线程池，直接new thread start不好吗？降低资源消耗: 通过重复利用已创建的线程来降低线程创建和销毁所造成的消耗。...

【大厂Java并发编程面试题解】显式锁(Explicit Locks)（下）

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【大厂Java并发编程面试题解】显式锁(Explicit Locks)（上）

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Java并发编程相关面试题

一、Java开发中用过哪些锁1、乐观锁乐观锁顾名思义，就是很乐观，每次去拿数据的时候都认为别人不会修改，所以不会上锁，但是在更新的时候会判断一下在此期间别人有没有去更新这个数据，可以使用版本号等机制。乐观锁适用于多读的应用类型，这样可以提高吞吐量，在Java中java.util.concurrent...

Java并发编程相关面试问题

基础概念 1.什么是原子操作？在Java Concurrency API中有哪些原子类(atomic classes)？原子操作（atomic operation）意为"不可被中断的一个或一系列操作" 。处理器使用基于对缓存加锁或总线加锁的方式来实现多处理器之间的原子操作。在Java中...

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